The touch switch, which is a miniature trigger switch, belongs to the category of electronic components. The touch switch is also called the key switch. It first appeared in Japan [called: sensitive switch]. When the switch is operated, the pressure switch function closes to meet the operating force. When the pressure is removed, the switch is turned off. Its internal structure is based on the change of force of the metal shrapnel to achieve continuity.
Touch the switch is to rely on the metal shrapnel force to achieve on-off. Touch switch, due to its small size and light weight, has been widely used in home appliances, such as: mobile phone buttons, digital camera buttons, car navigation and so on. However, the touch switch also has its disadvantages. Frequent pressing will cause the metal dome to lose its elasticity and failure. Therefore, a good product has a long life and solves the problem of failure.
Touch switch, product features:
◆ Increased component mounting density on printed circuit boards.
Improve mounting density of components on PC board
◆ adapt to reflow soldering.
Reflow solderable
◆The sealed joint structure improves reliability.
Contacts are completely sealed,enhving reliability
◆ Touch switch with 12mm width braided packing.
Packaged with a 12mm wide embossed taping.
Touch switches are used to operate various compact electronic devices such as mobile phones and communications that require high-density installation.
For operating various devices that require high density mounting such as
Mobile phones, communication devices, compact electronic devices.
Touch switch, detailed technical parameters
1. Rating: DC 12V 50mA
2. Loop:
3. Switch Type: ■ Non Shorting □ Shorting
4. Construction
4.1 The shape and size are determined according to the figure.
4.2 All parts should be free of rust, cracks, and poor plating.
5. Temperature 5 ~ 35 °C, humidity 45 ~ 85% standard test.
6. Temperature -10 ~ +60 °C environment use.
7.1 The contact impedance is measured at a small 1 KHz current. 500MΩ MAX 50 milliohms or less.
7.2 Insulation Impedance Measurement is continued for 1 minute with DC 500V applied between the terminals and between the terminals and the case. 100MΩ MIN 100 MΩ or more.
8. Action force Test at the end of the push handle: 100 180 250 ±30gf
9. Life Test 200,000 times at 15-18 shots per minute without load.
Touch switch, small size, is a standard part, size and related parameters must be combined with industry standards, the color is relatively simple; and membrane switch can be customized according to customer requirements of different sizes, appearance and color, etc., use more convenient and flexible. The membrane switch has good flexibility, closed structure and waterproof structure, and has better adaptability to the environment. The tact switch cannot function independently and must be used in conjunction with a PCB circuit board to form a complete open control system. Membrane switches integrate panels, switches, and conductive circuits to form a complete control system. Can provide customers with a whole switch solution.