This part is a kind of semiconductor called 1ZB36.
Function of this product has ZENER DIODES.
Manufacturers : Galaxy Semi-Conductor
Image and pinout :
Some of the text within the PDF file :
BL FEATURES power rating. GALAXY ELECTRICAL ZENER DIODES 1ZB6.8 --- 1ZB390 POWER DISSIPATION: 1.0 W Silicon planar power zener diodes For use in stabilizing and clipping curcuits with high DO - 41 Standard zener voltage tolerance is ±10%. Add suffix "A" for ±5% tolerance. Other zener voltage and tolerances are available upon request. MECHANICAL DATA Case:DO-41 www.DataSheet4U.net Terminals: Solderable per MIL-STD-202, method 208 Polarity: Cathode band Marking: Type n umber Approx. Weight: 0.35grams. MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 ambient temperature unless otherwise specified. SYMBOL Zener current (see Table "Characteristics") VALUE UNIT Pow er dissipation at Tamb=25 Ptot TJ Ts 1.0 1) -40---+150 -40---+150 W Junction temperature Storage temp [ ... ]