一、Scheme protection circuit diagram

二、Application Environment
1. Indoor equipment
2. The adapter used has anti-surge capability
3. General requirements for surge protection level
三、Explanation of the plan
1. TVS selects SMBJ15CA (600W)
2. Can pass Surgelevel IEC 61000-4-5 1.2/50μs-8/20μs 2Ω DM: 1KV surge test.