This part is a kind of semiconductor called C5027.
Function of this product has 2SC5027.
Manufacturers : Unisonic Technologies
Image and pinout :

Some of the text within the PDF file :
UNISONIC TECHNOLOGIES CO., LTD 2SC5027 HIGH VOLTAGE AND HIGH RELIABILITY . NPN SILICON TRANSISTOR FEATURES * High Voltage (VCEO = 800V) * High Speed Switching * Wide SOA 1 TO-220 1 TO-220F *Pb-free plating product number: 2SC5027L ORDERING INFORMATION Order Number Normal Lead Free Plating 2SC5027-x-TA3-T 2SC5027L-x-TA3-T 2SC5027-x-TF3-T 2SC5027L-x-TF3-T Package TO-220 TO-220F Pin Assignment 1 2 3 B C E B C E Packing Tube Tube 2SC5027L-x-TA3-T (1)Packing Type (2)Package Type (3)Rank (4)Lead Plating (1) T: Tube (2) TA3: TO-220, TF3: TO-220F (3) x: refer to Classification of hFE1 (4) L: Lead Free Plating, Blank: Pb/Sn www.unisonic.com.tw Copyright © 2005 Unisonic Technologies Co., Ltd 1 of 4 QW-R203-027,C 2SC5027 ABSOLUTE MAXIMUM RATINGS (Tc = 25 ) NPN SILIC [ ... ]
C5027 PDF Datasheet Download
