This part is a kind of semiconductor called MLE20.

Function of this product has N-channel power MOS FET.

Manufacturers : Sanken

Image and pinout :

Some of the text within the PDF file :

SANKEN ELECTRIC CO., LTD. Scope Absolute maximum ratings . 050621 SSE-23453 18 61426-01 SANKEN ELECTRIC CO., LTD. Electrical characteristics VTH Rank A B C D E 3.0 3.2 V 3.2 3.4 V 3.4 3.6 V 3.6 3.8 V 3.8 4.0 V 050621 SSE-23453 28 61426-01 SANKEN ELECTRIC CO., LTD. Fig.1 Switching Time Test Method 050621 SSE-23453 38 61426-01 SANKEN ELECTRIC CO., LTD. Package information Package type, physical dimensions and material a) b) c) 050621 (1) Gate (2) Drain (3) Source RG=60 Description Material Resin Epoxy resin Lead terminal Cu Specification Ni Ni plating,solder dip treatment Solder Pb Free Sn-3Ag-0.5Cu SSE-23453 48 61426-01 SANKEN ELECTRIC CO., LTD. Appearance The body shall be clean and shall not bear any stain, rust or flaw. - Marking a) Type Number b) Lot Number 1 [ ... ]

MLE20 PDF Datasheet Download