Introduction, Description, and Characteristics of Transient Suppression Diodes

Transient Voltage Suppressor (TVS) is a high-efficiency protective device in the form of a diode. When the two poles of a TVS diode are subjected to reverse transient high-energy shocks, it can convert the high impedance between the two poles into low impedance at a speed of 10 to the negative 12th power second, absorbing up to several kilowatts of surge power, and clamping the voltage between the two poles at a predetermined value, effectively protecting precision components in electronic circuits from damage caused by various surge pulses.

Due to its advantages such as fast response time, high transient power, low leakage current, breakdown voltage deviation, easy control of clamping voltage, no damage limit, and small volume.

Widely used in computer systems, communication equipment, AC/DC power supplies, automobiles, electronic ballasts, household appliances, instruments and meters

(kWh meter), RS232/422/423/485, I/O, LAN, ISDN, ADSL, USB, MP3, PDAS, GPS, CDMA, GSM, digital camera protection, common mode/differential mode protection, RF coupling/IC drive reception protection, motor electromagnetic interference suppression, audio/video input, sensor/transmission, industrial control circuit, relay, contactor noise suppression, and other fields.

explain

1. 60% of 500 watt peak pulse power supply 8/20 μ S)

2. Low clamping voltage

3. Protecting a bidirectional or two unidirectional lines

4. Working voltage V, 8V: 3V, 12V, 15V

5. ESD protection>40 kV

6. Compliant with

61000-4-2 (ESD for short): Air-15kV Contact-8kV,

40A-5/50ns 61000-4-4 (EFT):

What is a transient suppression diode

Transient suppression diodes are electronic components used to protect sensitive electronic devices from high voltage transient damage. Compared to most other types of circuit protection devices, they can respond to overvoltage phenomena faster and offer various surface mount and through-hole circuit board installation models.

characteristic

1. Adding TVS diodes to signal and power lines can prevent the failure of microprocessors or microcontrollers due to transient pulses such as electrostatic discharge effects, AC power surges, and switching power supply noise.

2. The electrostatic discharge effect can release pulses exceeding 10000V and 60A, and can last for 10ms; However, general TTL devices may be damaged when encountering 10V pulses exceeding 30ms. The use of TVS diodes can effectively absorb pulses that can cause device damage and eliminate interference caused by switches between buses (Crosstalk).

3. Placing the TVS diode between the signal line and ground can prevent unnecessary noise from affecting the data and control bus.