SMD high temperature key switch_self-locking key switch
Key switches can be classified into two types. One is what we often say, the inside of the key switch is made of metal sheets, which is called the key switch. It is also what we can often see. However, there is also a kind of key switch, which is different from the key switch we often talk about. The internal structure of this key switch is different from the key switch we usually talk about. This kind of key switch mainly uses electric rubber as the connecting circuit, and then this kind of key
- Classification：Key switch news
- Author: AUGO Electronics
- Release date：2022-02-20 21:34:12
Key switches can be classified into two types. One is what we often say, the inside of the key switch is made of metal sheets, which is called the key switch. It is also what we can often see. However, there is also a kind of key switch, which is different from the key switch we often talk about. The internal structure of this key switch is different from the key switch we usually talk about. This kind of key switch mainly uses electric rubber as the connecting circuit, and then this kind of key switch is also called a key switch. A few days ago, Ogo Electronics introduced a high temperature resistant patch self-locking key switch, including parameters and size charts. Features of high temperature resistant patch self-locking key switch: 1, with a variety of external size design 2. The sound of the switch is crisp, the hand feel and rhythm are good, and the sensitivity is high 3. The product lock cylinder mechanism has different structure designs without lock and with lock 4. Different terminal pin positions and different button heights can be designed to meet customer requirements High temperature resistant patch self-locking key switch Dimensional drawing of high temperature self-locking key switch: Dimensional drawing of high temperature self-locking key switch High temperature SMD self-locking key switch parameters: Service life: 30,000cycles Operating force: 180gf±50gf Rated load: DC 50V 0.5A Operating temperature: -25℃~80℃ Ambient humidity: ≤85%RH Contact resistance: 100mΩ Max Insulation resistance: 100MΩ Min DC250V Features: self-locking/unlocking; automatic welding Application of high temperature self-locking key switch: The key switch has the advantages of small contact resistance load, accurate operating force error, and diversified specifications, and has been widely used in electronic equipment and white goods. Because of the environmental conditions of the key switch (elastic force with pressure less than 2 times/environmental temperature and humidity conditions and electrical performance), large equipment and high-load buttons are directly replaced by conductive rubber or dome switch hardware shrapnel, such as medical equipment, TV. machine remote control, etc. The main uses of key switches are color TV sets, black and white TV sets, audio equipment, video recorders, video cameras, computers, game consoles, fax machines, walkie-talkies, batons, machine tool control devices, copiers, printers, electronic instruments, meters and other household appliances. Precautions for the use of high temperature self-locking key switches: 1. During routine maintenance and inspection of tact switches, we should pay attention to whether the key switches have quality problems such as brittleness, decreased flexibility, or cracking due to aging. Many materials of the key switch themselves have the effect of dustproof and electricity isolation, and attention should be paid to maintenance during daily use. People can start from the power isolation material of the key switch to eliminate more hidden dangers of consumption. 2. Due to the high flexibility of the key switch, be careful not to squeeze too hard when pressing. Since the principle is the same whether it is the control button on the fine instrument or the button on the simple one, it is assumed that pressing or tapping with great force will reduce the flexibility of the key switch itself. 3. If you find that the key switch has abnormal operation, remember not to suspend the disassembly without authorization. In the absence of a professional maintenance environment, many high-end electrical products need to be unpacked in a dust-isolated environment. It has the effect of conducting electricity, which is a very risky method, and it is easy to further damage the switch. Therefore, the inspection and maintenance of the illuminated key switch must be stopped in a special environment.
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