Instantaneous voltage suppressor (TVS) has been widely used in computer systems, communication equipment, AC/DC power supplies, automobiles, electronic ballasters, household appliances, instrumentation (watt-hour meter), RS232/422/423/485, I/O, LAN, ISDN, ADSL, USB, etc. MP3, PDAS, GPS, CDMA, GSM, digital camera protection, common mode/differential mode protection, RF coupling /IC driver reception protection, electromagnetic wave interference suppression, audio/video input, sensor/transmission, industrial control loop, relay, contactor noise suppression and other fields. It has the following three characteristics:

1, the TVS diode added to the signal and power line, can prevent the microprocessor or single-chip microcomputer due to instant impact, such as electrostatic discharge effect, AC power surge and open

Failure caused by noise from power off.

2, electrostatic discharge effect can release more than 10000V, more than 60A pulse, and can last 10ms; The average TTL device encounters 10V pulses of more than 30ms

When flushed, it leads to damage. The TVS diode can effectively absorb pulses that can cause device damage and eliminate interference caused by switching between buses

(Crosstalk).

3, the TVS diode is placed in the signal line and ground, can avoid the data and control bus by unnecessary noise.