. High reliability by S.M.T. & TQC. (SURFACE MOUNTING TECHNOLOGY

. High isolation more than 50M / 500 VDC

. High dielectric strength over 2.5 KV

. Low switching current, current less than 7.5ma / 12 VDC C MOS IC or

TTL compatible

. Low EMI / EFI & surge by means of zero cross trigger method

. High surge current duration over 10 times of rated current / one cycle

. High surge voltage duration by Snubber circuit