This part is a kind of semiconductor called SSC620S.

Function of this product has Application Notes and Evaluation Handbook.

Manufacturers : Sanken

Image and pinout :

Some of the text within the PDF file :

SSC620S/SSC620D Ver.0.1 Page.1 SSC620S/SSC620D Ver.0.1 Page.2 SSC620S/SSC620D Ver.0.1 Page.3 SSC620S/SSC620D Ver.0.1 a. Type Number b. Lot Number 1st letter The last digit of year 2nd letter Month 1 10 11 12 9 O N D (1 to 9 for Jan. to Sept., O for Oct. N for Nov. D for Dec.) 3rd letter Week 1 3 Arabic numerals c. Sanken Registration Number Material of terminal: Cu Treatment of terminal : solder plating Weight: Approx. 0.51g Page.4 SSC620S/SSC620D Ver.0.1 a. Type Number b. Lot Number 1st letter The last digit of year 2nd letter Month 1 10 11 12 9 O N D (1 to 9 for Jan. to Sept., O for Oct. N for Nov. D for Dec.) 3rd letter Week 1 3 Arabic numerals c. Sanken Registration Number Material of terminal: Cu Treatment of terminal : solder plating Page.5 SSC620S/SSC620D Ver [ ... ]

SSC620S PDF Datasheet Download