This part is a kind of semiconductor called TVR4J.

Function of this product has (TVR4J / TVR4N) FAST RECOVERY RECTIFIER.

Manufacturers : Galaxy Semi-Conductor

Image and pinout :

Some of the text within the PDF file :

BL GALAXY ELECTRICAL FAST RECOVERY RECT IFIER FEATURES Low cos t Diffus ed junction Low leakage Low forward voltage drop High current capability Eas ily cleaned with Freon,Alcohol,Is opropanol and s im ilar s olvents The plas tic m aterial carries U/L recognition 94V-0 TVR4J---TVR4N VOLTAGE RANGE: 600 ---1000 V CURRENT: 1.5 A DO - 15 MECHANICAL DATA Cas e:JEDEC DO-15,m olded plas tic Term inals : Axial lead ,s olderable per MIL- STD-202,Method 208 Polarity: Color band denotes cathode Weight: 0.014 ounces ,0.39 gram s Mounting pos ition: Any MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 am bient tem perature unles s otherwis e s pecified. Single phas e,half wave,60 Hz,res is tive or inductive load. For capacitive load,derate by 20%. TVR4J Maximum re [ ... ]

TVR4J PDF Datasheet Download