At present, according to the quality, the shrapnel of the key switch can be divided into domestic shrapnel and imported shrapnel. The quality of imported shrapnel is relatively good, but the price is also higher. According to different materials, it can be divided into stainless steel shrapnel and ordinary shrapnel, and can be divided into square shrapnel and round shrapnel according to the shape. However, since the quality of the shrapnel directly affects the normal use of the key switch, the shrapnel must be tested to determine the aging test, salt spray test, etc. to ensure that it is not easily oxidized or aged.
The choice of square and round shrapnel should be considered according to the needs of the key switch. In the case of the same material, the life of the circular shrapnel is generally longer than that of the square shrapnel, but the price of the square shrapnel is relatively cheaper than the round shrapnel, the processing is easy, and the material is saved. Therefore, if you want to have a price advantage, you can consider square shrapnel, and if you have high requirements for quality of life, you are more likely to choose round shrapnel.
The key switch shrapnel is mainly used in membrane switches, dome contact switches, PCB boards, FPC boards, medical equipment and other products. The working principle of the button shrapnel: The button shrapnel on the membrane button is located on the conductive part of the PCB (mostly located above the gold finger on the circuit board). When pressed, the center point of the shrapnel is concave and contacts the circuit on the PCB. , so as to form a loop, the current passes through, and the whole product can work normally.
Key Switch Product Introduction
1, Patch Waterproof Tactile Key Switch
Operating force: 250gf±50gf
Lifetime: 100,000cycles
Waterproof grade: IP67
Waterproof grade: IP67
Features: The product lock cylinder mechanism has different structure designs without lock and with lock
purpose: Suitable for mouse, security, computer, communication products, household appliances, intelligent transportation, etc.
2, high temperature SMD self-locking key switch span>
Operating force: 180gf±50gf
Lifetime: 30,000cycles
Specification: 5.8*5.8*7.9Features: self-locking/unlocking; automatic welding
purpose: Smart meters, electric toothbrushes, smart sweepers, conversion equipment, instruments, children's toys, adult products, etc.
Rated load: DC 12V 50mA
Operating force: 180g/250f±50gf
Lifetime: 100,000cycles
Features: different terminal pins and different button heights can be designed to meet customer requirements.
purpose: Smart meters, electric toothbrushes, smart sweepers, conversion equipment, instruments, children's toys, adult products, etc.
4, dustproof and waterproof key switch
Lifetime: 10,000cycles
Rated load: DC 50V 0.5A
Contact Resistance: 100mΩ Max
Specification: 5.8*5.8*8.0Features: Various form factors
Usage: Smart meters, electric toothbrushes, smart sweepers, conversion equipment, instruments, children's toys, adult products, etc.
< span style="font-size:14px;">< span style="font-size:14px;">5, multi-function five-way key switch< /span>
operating force : 250gf±50gf
Specification: 12*12*9.0mm
Contact Resistance: 80mΩ Max
Insulation resistance: 100MΩ Min DC250V
Features: The switch has a crisp sound, good feel, rhythm, and high sensitivity
purpose: Smart meters, electric toothbrushes, smart sweepers, conversion equipment, instruments, children's toys, adult products, etc.
Key switch manufacturers introduction
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| Corporate Front Desk | Key switch automation production line | Key Switch Taping Machine< /strong> |
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| Key Switch Workshop | Key Switch Injection Workshop strong> | Warehouse |
Dongguan Ou Gao Electronics Co., Ltd. is a professional company dedicated to high-quality electronic electrical switches and sockets. The company has accumulated many years of rich marketing experience and has many mature high-quality products. Products include: toggle switch, tact switch, micro switch, vibration switch, direct key switch, key switch, micro switch, leaf switch, push button switch, rocker switch; sockets: headphone socket, DC power socket, AC power socket ;Connectors include: USB connector, battery connector and other products.
