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KSD- PS020-Y-M series

KSD- PS020-Y-M series

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按键开关规范
开关规格
极点位置：SPDT、DPDT
触点额定值：12VDC，50mA
接触电阻：最大100 mΩ，1.5 V DC；100mA，采用电压降法
绝缘电阻：100 MΩ，最小500 V DC，持续1分钟
介电强度：不允许击穿；500 V交流电持续1分钟
操作力：250土50gf
使用寿命：50000次循环
工作温度范围：-40°C~85°C
总行程/操作行程：2+0.3mm/1土0.3mm

按键开关

按键开关是一种手动操作的电气开关，通过按压按钮或键来激活。它们通常用于控制电路或设备的开启、关闭或其他功能。

工作原理

按键开关由以下组件组成：

**触点：**两个或多个电触点，通常由导电材料制成。
**极：**两个或多个极，每个极连接到一个触点。
**按钮或键：**一个可移动的按钮或键，用于操作开关。
**弹簧：**一个弹簧，用于将按钮或键复位到其原始位置。
当按钮或键按下时，它会移动触点，使它们接触或断开。这会改变电路或设备的电气状态。当按钮或键松开时，弹簧会将触点复位到其原始位置。

类型

有许多不同类型的按键开关，包括：

**单极单掷 (SPST)：**最基本的类型，具有一个常开 (NO) 触点和一个常闭 (NC) 触点。
**单极双掷 (SPDT)：**具有一个公共 (COM) 触点、一个 NO 触点和一个 NC 触点。
**双极单掷 (DPST)：**具有两个 NO 触点和两个 NC 触点。
**双极双掷 (DPDT)：**具有两个 COM 触点、两个 NO 触点和两个 NC 触点。
优点

按键开关具有以下优点：

**易于使用：**它们易于使用，只需按压按钮或键即可操作。
**可靠性：**它们非常可靠，可以承受恶劣的环境条件。
**低功耗：**它们功耗低，非常适合电池供电设备。
**多种类型：**有多种类型的按键开关可供选择，以满足不同的应用需求。
应用

按键开关广泛用于各种应用中，例如：

**消费电子产品：**智能手机、平板电脑、可穿戴设备
**工业控制：**控制面板、人机界面
**医疗设备：**监护仪、输液泵
**汽车：**仪表板开关、控制台开关
**家用电器：**洗衣机、烘干机

Button switch specification
Switch specifications
Pole positions: SPDT, DPDT
Contact rating: 12VDC, 50mA
Contact resistance: maximum 100 m Ω, 1.5 V DC; 100mA, using voltage drop method
Insulation resistance: 100 M Ω, minimum 500 V DC, lasting for 1 minute
Dielectric strength: No breakdown allowed; 500 V AC for 1 minute
Operating force: 250 ± 50gf
Service life: 50000 cycles
Working temperature range: -40 ° C~85 ° C
Total travel/operation travel: 2+0.3mm/1 ± 0.3mm

Key switch

A key switch is a manually operated electrical switch that is activated by pressing a button or key. They are typically used to control the opening, closing, or other functions of circuits or devices.

working principle

The key switch consists of the following components:

**Contact: * * Two or more electrical contacts, usually made of conductive material.
**Pole: * * Two or more poles, each pole connected to a contact.
**Button or key: * * A movable button or key used to operate a switch.
**Spring: * * A spring used to reset a button or key to its original position.
When a button or key is pressed, it moves the contacts, causing them to make contact or disconnect. This will change the electrical state of the circuit or equipment. When the button or key is released, the spring will reset the contact to its original position.

type

There are many different types of key switches, including:

**Single pole single throw (SPST): * * The most basic type, with one normally open (NO) contact and one normally closed (NC) contact.
**Single pole double throw (SPDT): * * has one common (COM) contact, one NO contact, and one NC contact.
**Bipolar Single Throw (DPST): * * has two NO contacts and two NC contacts.
**Bipolar Double Throw (DPDT): * * has two COM contacts, two NO contacts, and two NC contacts.
advantage

The key switch has the following advantages:

**Easy to use: * * They are easy to use and can be operated by simply pressing a button or key.
**Reliability: * * They are very reliable and can withstand harsh environmental conditions.
**Low power consumption: * * They have low power consumption and are very suitable for battery powered devices.
**Multiple types: * * There are multiple types of button switches to choose from to meet different application needs.
application

Key switches are widely used in various applications, such as:

**Consumer electronics products: * * smartphones, tablets, wearable devices
**Industrial control: * * Control panel, human-machine interface
**Medical equipment: * * monitor, infusion pump
**Car: * * Instrument panel switch, console switch
**Household appliances: * * washing machine, dryer
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