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- Power Semi-conducter
- Circuit Block Product
- Power Unit
- Unique ShinDengen
- AC/DC Power Supply
- LLC（Half Bridge）
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- Overvoltage Protection Circuits
Overvoltage Protection Circuits
Select products by the circuit board you will use.
Overvoltage protection circuit
Power Zener
We have the best products for protection of various semiconductor integrated circuits and protection from load dump surge.Features
Shindengen's power zener fall under TVS (Transient Voltage Suppressor).
- High reliability
- Structure superior in moisture resistance and heat resistance using proprietary glass passivation technology.
- Fast response
- It has high speed response characteristics to zinc oxide varistors and has high asorbed energy tolerance.
- Abundant lineup
- A withstand voltage (VBR) of 12 to 320 V and a power dissipation※ of 1 to 5 W in a surface mount package. Clamp voltage width is narrow allowing easy circuit design.
Selection procedure
- 1 Determination of peak reverse voltage VRM: It is determined from circuit voltage (peak value of voltage value applied at steady state).
- 2 Determination of VBR: Determined from surge voltage magnitude and surge impedance.
- 3 Clamping voltage VCL: Determined from the withstand voltage of the circuit to be protected.
- 4 Other special conditions: Capacitance etc.
Example of Use
Automotive load dump standard correspondence table
Main semiconductor parts used
