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DC12V Power Supply Surge Protection Solution: SOCAY Electronics

Date：2025-12-23 Viewed：87

Application Background

Global warming leads to an increase in thunderstorm weather
Severe hazards occur after power supplies are damaged by lightning strikes
High maintenance costs are incurred following lightning strike damage to power supplies
Power supplies with high surge protection have become an industry trend

Solution Description and Precautions

The rear stage of this solution adopts TVS components with fast response time and low residual voltage
The front stage uses three-electrode GDT with large discharge capacity and small size
An inductor L is used for coupling in the middle to drive GDT to discharge large currents
This power supply solution meets surge test standards such as IEC 61000-4-5 and GB/T 17626.5
This power supply solution can pass the 1.2/50μS - 8/20μS combined wave surge test

Solution Applications

PTZ camera power supply
Bullet camera power supply
Power adapter
LED power supply
Home music player
Digital photo frame power supply
Vehicle-mounted power supply
Other DC12V power supplies