All parts are RoHs compliance and most with safety approvals (UL/CE). Ultra small package, high power density, isolation voltage from 1KV DC,1.5KV DC, 3KV DC to 6KV DC, with our own patents.Application:All parts are RoHs compliance and most with safety approvals (UL/CE).Widely used in industry control, electric power, electronic instrument, medical electronic, rail transit, communication, telecom ...