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Capacitive Touch Switch Technology
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Capacitive Touch Switch

Introduction

Capacitive Touch Keypad 

Working Principle

Please see the picture which shows the basic working principle: When body, as the earth capacitance, touches the electrode, capacitance CF will be formed between the induction electrode with the earth. The induction capacitance usually ranges from several pF to tens of pF. Making use of this basic principle, related circuit outside is established, and IC can detect if body touches electrode by the changing of capacitance.

Product Description

Comparing with traditional mechanical keys, capacitive touch sensor is not only slinky but also with long life time and durable. It subverts traditional keypad control. Only with slight touch, It can realize the control of switches, quantizing, and even direction.
Currently our group can achieve the design for below products:

Capacitive touch with keypad.
Capacitive touch with slider.
Capacitive touch with roller.
Transparent capacitive touch with keys, roller and slider.
Standard Specification
Electrical
Maximum Circuit Rating
35V( DC),100mA 1W
Dielectric Withstand
250 V Rms (50~60 Hz 1 min.)
Environmental
Operation Temperature
-20 ℃ to +80 ℃
Storage Temperature
-40 ℃ to +80 ℃
Humidity
40 ℃ , 90%  for 240 hours
Applications

The capacitive touch keypad owns durability, temperature resistance, water-proof, low cost and other advantages. It’s widely applied to home appliances and industrial control.  

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GROWTH PROCESS

UTC As one of the professional manufacturers of electronic equipment in China

2021: The company has obtained 6 national patents.

2019: Increase investment of RMB 15 million and move into a new factory building (Foshan factory, introduce automatic printing production line, improve purification system, further improve the printing production environment, greatly increase production capacity), the factory area is 5000 square meters, with 1000 square meters of ten 10,000-level printing workshop, the annual sales of this factory area reached 6 million US dollars.

In October 2018, the Dongguan factory of the silicone factory was established.

Established PCBA Dongguan factory in December 2015.

March 2015: increased investment of 5 million RMB, and the plant area reached 2,500 square meters (relocated factory address)

2013: Established Guangzhou Jianming Electronic Technology Co., Ltd. for production and manufacturing, with a plant area of 1,300 square meters.

2005: The company was formally established, engaged in membrane switch, touch screen, PCBA, silica gel, plastic trade, and help foreign customers with various procurement services.

CUSTOM RAPID PROTOTYPING SERVICES

UTC As one of the professional manufacturers of electronic equipment in China

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