Reliable Quality of Momentary Push Button Switch from China
Responsible Attitude Towards All Customers & High-Quality Standards
  • Professional momentary push button switch manufacturer in China
  • Full line of anti vandal switch, piezo switch & capacitive switch contain momentary function
  • One piece for piezo and capacitive switch

Send us your inquiry to custom your momentary push button switch now!

Get an Instant Quote

Langir Switch Provides You Solutions to Choose the Correct One

Low voltage momentary push button switch for access control.

Dia.12mm, metal material anti vandal switch, 1NO momentary

Anti-vandal momentary push button switch with waterproofing.

Dia. 16mm, 1NO or 1NC momentary, anti vandal switch

Nickel-plated momentary push button switch with a shiny surface.

Dia.19mm, multiple head, anti vandal switch

Dia. 19mm momentary push button switch for short crust.

Dia.19mm, short crust, high head, flat head or domed head

Brushed momentary push button switch.

Dia. 12mm, non-illuminated, dot or ring

Vandal-resistant momentary push button switch.

Dia.16mm, 1NO momentary, black anodized material

10-high protection momentary push button switch

Dia.19mm, momentary 1NO1NC, head can be customized

11-double-pole double-throw momentary push button switch

Dia.19mm with momentary 1NO1NC & 2NO2NC

13-extended momentary push button switch

Dia.19mm, micro-trip, double color or single color

14-flush mount momentary push button switch

Dia.19mm with micro switch in the base, big current

21-coffee machine momentary push button switch

Dia.22mm, momentary or latching, big current

26-LED metal momentary push button switch

Dia.25mm, super short crust, momentary or latching

28-aluminum momentary push button switch

Dia.16mm piezo switch, momentary, normally open

29-IP69K momentary push button switch

直径19毫米压电开关,瞬时型,常开

30-red anodized momentary push button switch

直径22毫米压电开关,瞬时型,常开

31-tactile momentary push button switch

直径25毫米压电开关,瞬时型,常开

32-flat bezel momentary push button switch

直径30毫米压电开关,瞬时型,常开

33-fully illuminated momentary push button switch

直径22毫米压电开关,塑料材质,整体LED

34-tactile momentary push button switch

直径16毫米电容开关,触摸操作

35-ring momentary push button switch

直径19毫米电容开关,触摸操作

36-capacitive momentary push button switch

直径22毫米电容开关,触摸操作

37-capacitive touch momentary push button switch

直径25毫米电容开关,触摸操作

Langir瞬时按钮开关
  • 快速交付周期
  • 知名品牌信赖之选
  • 样品1-2天内快速供应

如何定制您的瞬时按钮开关?

自锁式按钮开关不同, ,瞬时按钮开关同样需要按压开启和关闭,其执行机构与锁定式按钮开关有所区别。.

此类瞬时按钮开关在用户按压时工作。瞬时按钮开关的常见应用随处可见,例如门禁系统、停车场、ATM机等各处。.

瞬时按钮开关可以是 normally open either normally closed.。因此如果您需要具备常开或常闭功能的瞬时按钮开关,我们可以为您定制生产。.

我们的全系列金属按钮开关也具备瞬时功能,因此您永远拥有充足选择。通过Langir,定制您的瞬时按钮开关同样可以实现。.

您可以从我们提供的不同材质和功能中进行选择。根据您使用不锈钢按钮开关的具体场景,我们可以协助您设计出合适的产品。.

您只需清晰描述您的需求即可。可以以设计图、图纸的形式提供,也可以与我们详细说明具体细节。.

FAQ’s

什么是Langir瞬时按钮开关?

瞬时按钮开关通常为常开型,Langir防破坏开关、压电开关和电容开关均具备此功能。.

包装信息是怎样的?

通常采用泡沫盒包装,每箱40或50件。塑封机密封塑料袋固定产品。纸箱包装规格为500件/1000件。.

最近的港口是哪个?

Our nearest port is Ningbo and Shanghai port, but if you collect the goods to ship together, we could send to the other farther port.

接受何种付款方式?能否支付人民币?

接受电汇、即期信用证、现金、PayPal、支付宝等。小额订单通常要求100%预付电汇或PayPal付款;大额订单采用30%预付电汇,70%见提单副本付款。欢迎随时验货.

Download our Catalog
Catalogue download

Langir:您可靠的中国瞬时按钮开关供应商

作为中国一线制造商,Langir始终提供高品质的瞬时 A push button switch.

瞬时按钮开关是Langir按钮开关家族中的典型产品之一。最常见的类型是«按压接通»(或常开型)开关,按下时接通电路,松开时断开。瞬时按钮开关也可以是常闭型。.

Langir瞬时按钮开关具有多种孔径和参数。.

针对瞬时按钮开关,我们提供1常开瞬时型、瞬时关断(接通)型、1常开1常闭瞬时型、2常开2常闭瞬时型、1常闭瞬时型等不同类型供您选择。.

瞬时按钮开关通常通过螺丝或引脚端子安装在面板上,以连接其他组件。.

Langir瞬时按钮开关具有防尘设计,可防止灰尘和碎屑进入。除焊接导线外,也可提供快速连接器。可根据您的要求定制不同线缆。.

Langir电气备有各种瞬时按钮开关库存,可立即发货。Langir每月产能达50,000件。.

自2009年起,Langir已建立一系列测试流程以控制质量。多年来,我们已获得LVD、ROHS、REACH、ISO14001、ISO9001、IP等级测试报告等认证。.

只要您发送询盘或来电,Langir专业销售团队将为您提供可靠的支持与解决方案。.

瞬时按钮开关——常见问题指南

在本常见问题指南中,您将了解关于瞬时按钮开关的众多信息。.

您会惊讶于其在类型、尺寸、颜色、形状及许多其他配置方面的多样性。.

此外,您还将发现专门为恶劣环境甚至含盐条件设计的特定类型瞬时按钮开关。.

无论您是个人使用还是商业用途,本常见问题指南将在您寻找最适合应用需求的瞬时按钮开关时提供极大帮助。.

1. 什么是瞬时按钮开关?

瞬时按钮开关

瞬时按钮开关

瞬时按钮开关是一种按钮开关,当您按压其执行机构后,它会弹回默认状态。.

顾名思义,瞬时按钮开关的执行机构在您按压后不会保持压下状态,因此被称为“瞬时”开关。.

它也被称为瞬时按钮开关、瞬时动作开关、瞬时接触按钮、瞬时接触按钮开关、瞬时电气开关。.

瞬时按钮开关具有多种配置,例如不同颜色、尺寸、形状等。.

瞬时按钮开关可见于我们的家庭环境中,例如门铃、对讲机、百叶窗控制器,甚至家用电器如食物处理器、搅拌机等众多设备。.

2. 瞬时按钮开关由哪些部件组成?它们如何工作?

瞬时安装按钮开关主要由两个部分组成:头部和本体。.

头部包含执行机构,而本体包含多个部分和区域,如螺纹颈、底座和引脚。.

以下是构成瞬时安装按钮开关的部件,以及其他您也应了解的部件:

  1. Actuator
    • 这也被称为开关的头部,按钮位于此处。.
    • It has a wide variety of colors, shapes, sizes, and designs such as symbols and logos.
    • It is a movable mechanism that can be pressed down or touched for the touch-sensor or momentary pulse switch types to actuate the momentary push button switch and trigger the function assigned to it such as switching on the momentary light switch or switching them off.
  2. Illumination
    • This feature is found in the lighted momentary push button switch with LED, as the LED is the one responsible for its illumination since it is the cheapest among the other alternatives.
    • The majority of the illuminated momentary mount push button switch has an LED chip that illuminates when the button is pressed or it stays lit even when not pressed depending on how you wired it.
  3. Body
    • This is also known as the shell or the enclosure.
    • This is usually made up of stainless steel, aluminum, brass, or plastic material.
    • This houses the internal parts of the momentary push button switch and keeps all the parts together in one unit.
  4. Grooves
    • Also called the threaded neck of the switch where you can see many visible depressions around the body of the momentary push button switch.
    • This is where the mounting flange is fastened to tightly secure the mounting of the momentary push button switch.
  5. 也称为自锁按钮开关的端子。
    • These are the protruding metal rods which are also commonly known as the terminals.
    • This is where the wires are either soldered to or clamped connecting the momentary push button switch to its power supply and to the device it is assigned to control.
    • For example, 4 pin momentary push button switch.
  6. 这也称为螺母或安装螺母,是一种六角形金属件,用于将自锁按钮开关固定在面板或表面上。
    • Along with your momentary push button switch order, you will receive a hex shaped nut that is a separate part
    • This is used to fasten the momentary push button switch at the back of the panel through its rear side or on the front of the panel for the front panel momentary push button switch.
  7. O型圈
    • This is also known as the rubber seal that is placed under the actuator before inserting the momentary push button switch through the mounting hole.
    • This can help seal the gap between the momentary push button switch and the mounting hole to avoid water from entering.
  8. Stationary and moving contacts
    • Made up of conductive material positioned beneath the actuator and attached to the terminals.
    • By pressing the actuator the stationary and moving contacts are connected hence they bridge the current to flow from the power source to the device and power the device to operate.
    • If it’s a push to break momentary push button switch, the contacts are already connected by default, and pressing the actuator breaks the current flow hence stopping the operation.
  9. 螺旋弹簧
    • The spiral object that stores mechanical energy also called spring steel.
    • For the momentary push button switch, when you press the actuator, the coil spring compresses pushing the moving contacts and touching the stationary contacts hence allowing the current to flow.
    • When you release the actuator, the coil spring bounces back to its original position.

While for latching push button switch, if you push the actuator, it reaches a point where a locking mechanism stops it from springing back and it will only return to its default state when the actuator is pressed once again releasing it from the locking mechanism.

Parts of the momentary push button switch

Parts of the momentary push button switch

3. Does the momentary push button switch have different kinds or types?

Yes, there are different kinds or types of momentary push button switches available in the market for you to select from.

Each kind is specially made for a specific purpose where it is best suited for.

Listed below are the available momentary push button switches in the market with names that depict their types and their specific functions.

4. What are the generally known specifications of the momentary push button switch?

The majority of The momentary push button switches have specifications or features that are generally known.

You may have known a thing or two features of the momentary push button switch from your experience with push button switches, or your shopping experience.

However, the list shows most of the commonly known specifications and features of the momentary push button switches which can help you when you’re trying to purchase the right switch for your application.

Diameter sizes:

  • 8毫米
  • 10毫米
  • 12毫米
  • 16毫米
  • 19毫米
  • 22毫米
  • 25毫米
  • 30毫米
  • 40毫米

Actuators / Head:

  • 平头
  • Raised.
  • High raised
  • 方头
  • 倒角头
  • Laser etched head

Illumination style:

  • Non-illuminated
  • 点状照明
  • 全照明
  • 环形照明(大或细)
  • 电源背光符号
  • Ring illuminated + power symbol
  • Backlit label

Terminals / Pins:

  • Solder lug
  • Screw type
  • 飞线式
  • Feed-through style
  • Quick connector blade

Different kinds of backlit symbols

Different kinds of backlit symbols

5. What is the difference between the maintained push button switch and the momentary push button switch?

As mentioned earlier, the momentary push button switch does not stay depressed when you press its actuator; rather, it returns to the default state almost immediately after releasing it.

On the other hand, the maintained push button switch, also called the latching push button switch, remains depressed after pressing the actuator and will only return to its default state when you press the actuator once again.

Both momentary and latching switch actions have their most suitable applications. For example, you will need a latching push button switch for loading equipment, while a momentary push button switch can be used for doorbells, small appliances, and so on.

Unfortunately, there is no momentary latching switch type since these actions are different from each other.

The latching push button switch is also referred to as the non-momentary push button or non-momentary push button switch.

Momentary and latching push button switch action

Momentary and latching push button switch action

6. What are the mounting styles available for the momentary push button switch?

Similar to other types of push button switches, the momentary push button switch has different mounting styles available for different surface or panel dimensions.

The information below describes the different mounting styles of the momentary push button switch:

  1. Panel mount momentary push button switch
    • The panel mount momentary push button switch is similar to other standard push button switches; however, it has thicker actuators with grooves around them where the mounting flange is fastened.
    • The panel mount momentary push button switch has two mounting types: front panel mount and rear panel mount, which indicate which side of the panel the switch is mounted on.
  2. Surface mount momentary push button switch
    • The surface mount momentary push button switch typically has the same appearance as any standard push button switch but features a low profile or miniature type, namely small momentary push button switch, micro momentary push button switch, or miniature push button momentary switch.
    • The surface mount momentary push button switch is generally surface-mounted on a PCB or a panel.
  3. Flush mount momentary push button switch
    • The flush mount momentary push button switch has the same look as regular push button switches but usually has a flat head actuator, also called a flat style push button momentary switch.
    • The flush mount momentary push button switches generally have a flat head, and because of this, the head is almost level with the surface, leaving more surface clearance than other switches.

Front panel mount momentary push button switch

Front panel mount momentary push button switch

7. Does the momentary push button switch have normally open or normally closed types?

Yes, momentary push button switches also have normally open and normally closed types.

These are the default contact positions of the push button switch before you press the actuator, which changes the contact positions.

The contacts inside the momentary push button switch are both stationary and movable and are made of conductive materials.

Here are the momentary push button switch's default contact positions and their descriptions:

  • Normally open momentary push button switch
    • Also referred to as the NO momentary push button switch or momentary push button switch normally open.
    • The default contact position is open, meaning the contacts are not touching each other and there is no current flow.
    • When you press the actuator, the movable contacts touch the stationary contacts, allowing current to flow.
  • Normally closed momentary push button switch
    • Also known as the NC momentary push button switch or NC momentary push button.
    • The default contact position is closed, meaning the contacts are joined, allowing current to flow.
    • Pressing the actuator will break the connection of the contacts, thereby interrupting the flow of current.

Normally open and normally closed push button switch symbol

Normally open and normally closed push button switch symbol

8. What are the types of momentary push button switches in an electrical circuit?

In an electrical circuit, the momentary push button switch can also be classified into different types.

These are abbreviated terms that define the number of poles and throws that the momentary push button switch has.

The term «pole» pertains to the number of circuits that the momentary push button switch can control in one device, while the term «throw» pertains to the number of positions of the switch's actuator.

We have four basic momentary push button switch types in an electrical circuit, which are shown below for easy comparison:

  1. SPST
    • SPST – This stands for “Single Pole Single Throw”.
    • The SPST momentary push button switch has one «on» position and controls two terminals for connecting and disconnecting functions.
    • Also known as the on and off push button switch, momentary on-off momentary on switch, momentary on push button switch, momentary off push button switch, or momentary start-stop switch.
  2. SPDT
    • SPDT – This means “Single Pole Double Throw”.
    • The SPDT momentary push button switch has a couple of «on» positions, with only a single input terminal but double terminals for its output.
    • Also called an A/B switch.
  3. DPST
    • DPST – This is the “Double Pole Single Throw” switch.
    • The DPST momentary push button switch has a couple of «on» positions simultaneously, featuring double input terminals and a single output terminal.
    • Also known as a two-circuit switch or 2-pole momentary push button switch.
  4. DPDT
    • DPDT – Its expanded form is “Double Pole Double Throw”.
    • The DPDT momentary push button switch has double terminals for both input and output and can be configured to work as an SPST switch.
    • It can also be called two SPST switches or a double pole momentary push button switch.

Different types of momentary push button switches in an electrical circuit

Different types of momentary push button switches in an electrical circuit

9. What materials are used to build the momentary push button switch?

The majority of momentary push button switches available on the market are made from stainless steel.

This is due to its several characteristics that have proven efficient and suitable for the functions and applications of push button switches.

However, stainless steel has many types categorized into grades, where each grade has different compositions and varying levels or amounts of elements.

These stainless steel grades are designated by the Society of Automotive Engineers; hence, the grades are named after them, for example, SAE 304, where the numbers following the term represent the chemical compositions.

Stainless steel can include certain levels of aluminum, copper, brass, silver, polycarbonate, silicone, ceramic, and many more.

Some amounts of titanium, chromium, molybdenum, nickel, or carbon are also included in the composition of stainless steel.

These materials can also alter the appearance of stainless steel and, more importantly, its performance, potentially making it more durable and rust-proof.

Most manufacturers of heavy-duty momentary push button switches use only two grades of stainless steel, which are as follows:

  • SAE 304
    • The majority of manufacturers use this stainless steel grade because it is known for its toughness against heat and corrosion, which protects the momentary push button switches.
    • This stainless steel grade is composed of approximately 20% chromium and around 10% nickel.
    • Also known as 18/8 stainless steel, it is also preferred for manufacturing cookware, kitchen appliances, food industry equipment, automotive applications, and building structures.
  • SAE 316L
    • An alternative stainless steel grade with superior corrosion resistance properties.
    • It is composed of iron, approximately 20% chromium, 12% nickel, along with some molybdenum, silicon, sulfur, and phosphorus.
    • As it offers greater rust resistance than SAE 304, it is suitable for saline environments or applications near saltwater.

Stainless steel 304 grade

Stainless steel 304 grade

10. Which industries utilize momentary push button switches in their operations or products?

The momentary push button switch is widely used across many global industries, including but not limited to the following:

  • 航空服务
  • Automotive
  • 化工厂
  • Construction vehicles
  • Food and beverage
  • Foodservice equipment
  • Gaming devices
  • Industrial equipment
  • 物料搬运
  • Metal forming and stamping
  • Packaging
  • Petrochemical
  • Power utilities
  • Printing equipment
  • 纸浆和造纸
  • Road construction

Beyond these industries, momentary push button switches are also commonly used in household applications such as doorbells, gate or garage door controls, momentary push button light switches, and many others.

Various applications of the momentary push button switch

Various applications of the momentary push button switch

11. What are the mounting measurement recommendations for momentary push button switches?

When mounting momentary push button switches, several factors should be considered to avoid potential issues.

For instance, disregarding mounting measurement recommendations may result in insufficient space for wiring behind the panel or inadequate surface clearance for the push button switch cover.

The following factors influence mounting measurements during the installation of a momentary push button switch:

  • The length of the momentary push button switch
  • The space behind the panel or the clearance in front of the panel for switch stations with covers.
  • The panel’s thickness

We will use the 16mm momentary push button switch as an example.

This type of switch requires approximately 0.059 inches of surface clearance, while the rear clearance should be about 0.886 inches if no wires are present, and the panel thickness should be around 10mm.

Momentary push button switch cover

Momentary push button switch cover

12. What is an extended momentary push button switch?

An extended momentary push button switch features a longer body length compared to other standard push button switches.

Some extended momentary push button switches include a contact block that helps regulate current flow through the switch.

Example of a momentary push button switch connector

Example of a momentary push button switch connector

13. What type of momentary push button switch turns on when released?

This type is the normally closed momentary push button switch, which activates when released.

It is also abbreviated as NC-MOM, meaning normally closed momentary push button switch, and it can be configured as SPST, DPDT, etc.

The "momentary" action of the normally closed momentary push button switch means that without external force, the switch springs back to its normally closed position.

The abbreviation NC-MOM may be confusing when labeled alongside another schematic term, ON-MOM, where “ON” is not an abbreviation but a word; in expanded terms, it means "on momentary," also known as a normally closed momentary push button switch.

It is crucial to pay attention to this distinction, as there are both normally open and normally closed momentary push button switches.

For example, to replace a dome light in your car, you would need a normally closed momentary switch that completes the circuit when the door is open.

While the door is open, the normally closed momentary push button switch is not pressed, the circuit is completed, and the dome light turns on.

14. How to wire a momentary push button switch for front and back door doorbells?

This doorbell installation requires two momentary push button switches and serves as a guide for wired doorbells.

  • Connect one wire from a terminal of the momentary push button switch to the transformer of the wired doorbell.
  • Then, run another wire from the other terminal of the momentary push button switch to one terminal of the doorbell's signaling device.
  • Next, connect another wire from the other terminal of the transformer to the second terminal of the signaling device.
  • For the second doorbell unit, connect a wire from one terminal of the second momentary push button switch to the terminal where the first momentary push button switch is connected.
  • Then, connect a wire from the other terminal of the second momentary push button switch to the third terminal of the signaling device.
  • Test both doorbells by pressing the two momentary push button switches.

Momentary push button switch doorbell application

Momentary push button switch doorbell application

15. How do you wire a car horn using a momentary push button switch?

Wiring a momentary horn button or switch is a common modification, especially for older cars with broken horns, as driving without a horn can lead to legal issues.

To help you replace your momentary push button horn switch or upgrade to a more modern switch, follow the installation guide below.

What you will need for this installation:

  • 12V battery
  • Two lengths of wire
  • 12V momentary push button switch

Here are the steps to follow:

  1. Connect one wire from any terminal of the car horn to one terminal of the momentary push button switch.
  2. Then, connect another wire from the other terminal of the momentary push button switch to the positive terminal of the 12V battery.
  3. Connect another terminal to the negative terminal of the 12V battery for grounding.
  4. Finally, connect one wire to the other terminal of the horn for grounding, which can be attached to the car's metal body or chassis.
  5. This installation guide is recommended for older cars or fully paid-off vehicles.
  6. You should also consult your local car dealer where you purchased your vehicle for such modifications or repairs.
  7. If your car horn is broken, replacing it promptly with a momentary push button switch is an excellent solution, as it is durable, reliable, and long-lasting.

Car horn push button

Car horn push button

16. Do police sirens use a momentary push button switch?

If you are wondering whether police sirens also use a momentary push button switch, yes, your assumption is correct.

一般来说,警笛有两个开关:一个可以改变警笛的音调类型,例如双音、长鸣和短促鸣叫。.

而另一个开关是瞬时按钮开关,只要用户按住按钮,就会持续播放警笛音调。.

如果第一个开关保持开启状态,警笛在通电期间将持续工作。.

警笛设备示例

警笛设备示例

17. 瞬时按钮开关如何帮助应对夜间骑行时的远光灯?

夜间骑行很困难,因为对向车道驶来车辆的远光灯非常刺眼。.

如果您有一辆自行车,瞬时按钮开关可以为您的夜间骑行提供解决方案。.

您可以将自行车前灯安装在车把上,并在左侧握把附近连接一个瞬时按钮开关。.

它还可以设置为闪烁或常亮模式。.

当您按下瞬时按钮开关时,可以轻松切换到可用模式。.

有多种不同类型可供选择,最重要的是,与瞬时按钮开关一起安装非常简便。.

带前灯的自行车

带前灯的自行车

18. CPU上的瞬时按钮开关有什么功能?

CPU或系统单元使用复位按钮来启动。.

复位按钮是一个常开式瞬时按钮开关,按下时会将复位输入端连接到主板的地线。.

当复位瞬时按钮开关释放时,会呈现一个开路值,表示逻辑“1”,即“不复位”。.

随后,复位瞬时按钮开关会忽略开关的抖动,进入条件输入状态,强制整个主板电路(包括系统单元和其他相关设备)复位。.

复位瞬时按钮开关的工作原理与开机瞬时按钮开关类似,后者为计算机提供初始电源。.

但与开机瞬时按钮开关相比,其他设备的功能与复位瞬时按钮开关略有不同。.

当您按下开机瞬时按钮开关时,所有设备都会初始化。.

某些系统单元在执行开机瞬时按钮开关操作时运行良好。.

尽管复位瞬时按钮开关是复位系统单元的便捷方式,但仍建议您将其作为最后手段使用。.

如果您的系统单元卡住,请等待几分钟;如果它没有恢复工作模式,可以尝试使用CTRL-ALT-DEL组合键,这应会打开任务管理器。.

然后结束导致系统单元卡住的任何进程。.

如果这不起作用,则适用复位瞬时按钮开关。.

按下复位瞬时按钮开关约4秒或更长时间,直到系统单元关闭并重新启动。.

然而,当您没有遇到此问题时,有正确的方法来重新启动计算机。.

关闭所有正在运行的应用程序,并通过屏幕左下角的窗口图标选择重启选项。.

计算机复位按钮

计算机复位按钮

19. 可以将两个瞬时按钮开关串联放置吗?

是的,可以实现。.

这也称为«双手控制»,瞬时按钮开关通常相距较远,以便用户可以用双手同时操作它们。.

例如,当这种“双手控制”连接到机器以控制其运行时,操作员可以安全地控制机器,因为操作需要操作员的双手参与。.

20. 如何使用瞬时按钮开关停止传送带?

按钮式瞬时启动开关可以通过断开或连接信号电流来控制传送带的控制电路。.

信号电流向PLC发送信号,以停止传送系统的电机。.

这比使用VDF方法和其他启动器来启停电机更好。.

瞬时启动开关或按钮式瞬时启动开关也可以停止传送带,以及装卸物料。.

它有助于执行LOTO(上锁、挂牌、试验)流程,瞬时按钮开关会锁定供应给传送设备的电源。.

电梯按钮控制

电梯按钮控制

21. 如何制作一个电路,使得按下瞬时按钮时,电容器充电并点亮LED,松开后LED缓慢变暗?

本项目所需材料如下:

  • 一个1N4000系列二极管
  • 1个常开式瞬时按钮开关
  • 1个电阻器(390欧姆,1/2瓦)
  • 1个红色50mA LED
  • 1个16V电解电容器(容量1000UF至5000UF)
  • 9V电池
  • 1个电池夹

以下是需要遵循的步骤:

  1. 取红线将9V电池夹连接到瞬时按钮开关。.
  2. 从瞬时按钮开关的另一端接一根线到二极管的阳极。.
  3. 然后从二极管的阴极再接一根线连接到电容器的正极。.
  4. 然后将电容器的负极连接到电池夹的黑线。.
  5. 按下瞬时按钮开关充电至约9伏。.
  6. 将电阻器连接到电容器的正极。.
  7. 然后将电阻器的另一端连接到LED的阳极。.
  8. 将LED的阴极连接到电容器的负极。.

电阻值可以增加到2000欧姆或更高,随着电阻值增加,LED会变暗,但只要从电容器汲取的电流较低,LED就会保持点亮。.

避免使用小于180欧姆的电阻值,因为这可能导致LED汲取超过其额定值的电流,并且可能无法长时间保持点亮。.

您也可以选择增加电容器的容量,但尽量避免设置为5000UF,因为它可能在瞬时按钮开关内部产生火花,最终导致永久性损坏。.

瞬时按钮开关电路

瞬时按钮开关电路

22. 什么是蘑菇型瞬时按钮开关?

瞬时蘑菇按钮是一种蘑菇形状的开关,通常尺寸为22毫米或更大,一般由塑料材料制成。.

这些开关也被称为紧急停止按钮,当触发时,会立即启动紧急停止操作。.

Mushroom type momentary push button switch

Mushroom type momentary push button switch

23. Does a momentary push button switch last longer than the rest of the switches?

Now, this entirely depends on whether the momentary push button switch is top quality and if it is used in applications properly.

High quality momentary push button switches typically will have around 1 million mechanical life cycles.

This pertains to the service life of its mechanical parts.

And when it comes to its electrical parts, a high quality momentary push button switch will have about 200,000 life cycles.

24. How do you confirm if a momentary push button switch is top quality?

You now understand that the service life of the momentary push button switch is dependent on its quality.

So how will you know for sure that the momentary push button switch you have chosen is high quality which means that it will last for many years?

Here’s a simple checklist when you’re trying to find out if the momentary push button switch is high quality or not:

  1. High ratings from customer reviews
    • This is the first thing you should check whenever you’re shopping for any product and in this case, the momentary push button switch.
    • Top rated customer reviews would generally mean that the previous customers or clients were satisfied with the performance of the momentary push button switch.
    • This will give you a better opinion about the product and know more about the brand, or the manufacturer.
  2. 价格合理
    • If you’re someone who doesn’t mind spending a few more dollars for a momentary push button switch, that’s good but sometimes highly priced ones aren’t the best quality.
    • Do some comparisons between your top momentary push button switch choices and see how they compare when it comes to their prices.
    • You will notice that the prices sometimes rely on how many features and benefits the momentary push button switch can offer however there are those which are costly because of the popularity of their name.
    • Balancing between what the momentary push button switch can offer you and its price can help you come up with a better decision.
  3. Inspect the images and videos
    • Most of the product listings will have some images of the momentary push button switches.
    • It should be clear enough for you to see all the parts of the momentary push button switch.
    • It is much better if there’s a video that showcases the momentary push button switch, its totality, and how it is operated.
  4. Check for the quality badges
    • A high quality momentary push button switch would have several quality badges that can prove its quality.
    • You may not be familiar with them, but you will also learn these international quality badges.
    • In general, these are the IP rating, IK rating, CE, ISO seal, TUV, RoHS compliance, REACH certificate of compliance, and UL.

国际质量标识

国际质量标识

25. What are the benefits of using a top quality momentary push button switch?

Top quality momentary push button switch offers plenty of benefits that add more value to your money.

Some of them may cost a bit more than the others, but you are paying for the quality and performance that it offers.

Here are some of the benefits of using top quality momentary push button switches:

  • Simple and elegant appearance
  • 使用寿命长
  • Universal applications
  • Little to zero maintenance
  • Quick installation
  • Varieties of types for different environmental conditions

26. What can shorten the service life of the momentary push button?

Aside from confirming that the momentary push button switch is top quality, avoiding the conditions and the actions that can shorten its service life can also help in maintaining its top performance as well as help it to last longer.

Here are some conditions and user actions that you should take into consideration to take good care of your momentary push button.

  1. Using beyond recommendation
    • There are different types of the momentary push button switch and there are features that are only available on certain types.
    • For instance, if the momentary push button switch does not have a water resistant feature, it means that it is not suitable in a near water environment.
    • Another example is supplying a higher current than the voltage rating of the momentary push button switch which can burn its internal electrical parts and eventually damage it, unless it is a high voltage push button switch.
  2. Frequency of usage
    • High quality momentary push button switches may work fine for a typical manner of usage but when it is used in a public place where there’s a high risk of usage, you should consider an anti vandal push button switch.
    • The anti vandal push button switch is specially designed to handle high abuse and even unintentional blunt force.
  3. Rapid movement
    • When the surface or equipment is usually shaking or moving in any direction, this condition may not be suitable for any regular momentary push button switch.
    • You will need a special type of momentary push button switch such as the anti vandal momentary push button switch to endure this kind of condition.
  4. Extreme temperature
    • All push button switches would have a recommended temperature range where they can work properly; this is the same with the momentary push button switch.
    • For example, if the momentary push button switch’s recommended temperature range is -20 degrees Celsius to +50 degrees Celsius, then you must ensure that it will be used within this range.
    • Using a momentary push button switch beyond its recommended temperature range can cause it not to work properly.
  5. Environment condition
    • The condition of the environment where the momentary push button switch is located can also affect its performance or service life.
    • For instance, in a saline environment, a metal momentary push button switch is more compatible since its material has more protection against corrosion caused by air moisture or a splash of salt water.

There may be other factors that can shorten a momentary push button switch’s service life but these are the most common ones.

Remember that even when you’re confident that the momentary push button switch is high quality, always read the manufacturer’s paperwork as there could be important specific guidelines in the proper usage of the switch that you’ve purchased.

Example of momentary push button switch technical data

Example of momentary push button switch’s technical data

27. What are the common problems you encounter with the momentary push button switch and how to fix them?

These usually happen when the momentary push button switch’s quality is poor or the mounting is not done properly.

But the good thing is, there are quick fixes that you can do to resolve these common problems.

The following are some common problems and the quick fixes recommended for them:

  1. Wrong size
    • Sometimes people purchase the wrong size when choosing a momentary push button switch which becomes a problem when you mount it to the equipment with a fixed hole.
    • If the momentary push button switch is too small for the mounting hole, you can try to use the rubber seal that comes with the package to cover the gap or you can also use a label plate that can fill the gap and display a label at the same time.
    • If the momentary push button switch is too big for the mounting hole, you can widen the hole using a steel file until there’s enough clearance for the switch to fit through.
  2. Melted terminals.
    • This generally happens when you solder the terminals for too long or the soldering iron temperature is too high.
    • Start by setting the soldering station to 370°C, and when soldering, target the tip of the terminals to avoid touching the plastic material, completing the soldering within two to three seconds.
  3. Loose fitting.
    • The mounting flange of the momentary push button switch may have loosened, the hole may be damaged, or the plastic enclosure may have become brittle, causing it to fall off.
    • Inspect whether the momentary push button switch is still suitable for use or if it is best to replace it.
    • Create a new mounting hole if that is the cause of the problem.
  4. Warm switch with a burnt smell.
    • If the momentary push button switch feels hot and emits a burnt smell, it may be drawing a higher voltage than its rated specification, causing internal components to burn.
    • Turn off the switch, remove it, and check its voltage rating, which may appear as follows:
      1. 10 amp momentary push button switch.
      2. 12v momentary switch waterproof.
      3. 15 amp momentary push button switch.
      4. 20 amp momentary push button switch.
      5. 30 amp momentary push button switch.
      6. 12 volt momentary push button switch.
      7. 24v momentary push button switch.
      8. 110v momentary push button switch.
      9. 120 volt momentary push button switch.
      10. 120v momentary push button switch.
      11. 220v momentary switch.
      12. 240v momentary push button switch.
    • You can also check this information on the packaging of the momentary push button switch or in the accompanying documentation.

How can you confirm if the momentary push button switch is strong enough to handle regular use?

If you want to confirm that the momentary push button switch is durable enough for regular use, check if it has an IK10 rating.

The IK rating test is conducted on electrical or electronic devices such as push button switches to determine the enclosure’s strength and the switch’s performance after testing.

The IK10 rating represents the highest level of impact protection that the momentary push button switch’s enclosure can provide.

This also means it can be used in applications involving regular use or in public places and establishments.

Parking ticket machine.

Parking ticket machine.

Can you use the momentary push button switch in a wet environment?

Yes, but not just any type of momentary push button switch; you will need a water-resistant or waterproof momentary push button switch.

If you plan to use the momentary push button switch in a near-water environment or outdoors where it may be exposed to rain, a water-resistant momentary push button switch is necessary.

For applications where the switch may be submerged in water, a waterproof momentary push button switch is highly recommended.

These water-resistant and waterproof momentary push button switches are specially designed with seals to prevent water ingress.

To easily identify these types of momentary push button switches, look for an IP rating of IP65 or higher.

For example, it may be labeled as a push button IP67.

These IP ratings confirm that the momentary push button switches are water-resistant or waterproof.

To obtain these ratings, manufacturers must subject their momentary push button switches to specific water tests to verify sufficient sealing against water intrusion.

The same rating system is used to determine the switch’s protection against solid particle ingress.

You can easily find these ratings in the product listing title, product description, or on the packaging.

Waterproof momentary push button switches.

Waterproof momentary push button switches.

Does the warranty of the momentary push button switch cover all damages?

This depends on the manufacturer and the type of damage that occurred to your momentary push button switch.

If you receive a defective momentary push button switch, you may return it to the manufacturer, who will likely replace it with a new one or repair it.

However, if the momentary push button switch stops working during use, you may send it back to the manufacturer for assessment of the failure cause.

Warranty coverage depends on the cause of the damage.

Damages generally caused by misuse, abuse, accidents, natural disasters, water exposure (for non-water-resistant switches), or unauthorized modifications are typically not covered by the product warranty.

The manufacturer can promptly address your damaged momentary push button switch, and repairs may not take long, but shipping times may range from several days to a few weeks depending on your distance from the manufacturer.

Is there a way to personalize your momentary push button switches?

Yes, there is.

Whether for personal or business applications, you can request customization of your momentary push button switch.

You can request specific sizes, materials, shapes, colors, and even a unique logo on the actuator.

Whether you need a large momentary push button switch, a round momentary push button switch, a square momentary push button switch, a miniature momentary push button switch, or a combination of features and specific sizes such as a waterproof momentary micro switch, manufacturers can accommodate your requests.

Some manufacturers offer customization options to meet your momentary push button switch needs.

You can also provide your own momentary push button switch design and collaborate with the manufacturer to bring your design concept to life.

3D render drawing of a momentary push button switch.

3D render drawing of a momentary push button switch.

Get an Instant Quote
Scroll to Top