High-level surge protection solution for DC 12V power port

一、Scheme protection circuit diagram

  DC 12V电源端口高等级浪涌防护方案

二、Application Environment

1. Frequent thunderstorms

2. Susceptible to electromagnetic environment interference

3. Network communication equipment power supply

4. Occasions with high requirements for surge protection level

 

三、Explanation of the plan

1. TSS selects solid discharge tube: OVTS0220SB, TVS selects 1.0SMBJ15CA (1000W)

2. Can pass Surgelevel IEC 61000-4-5 1.2/50μs-8/20μs 2Ω DM: 4KV surge test.