This part is a kind of semiconductor called D768.
Function of this product has 2SD768.
Manufacturers : Hitachi Semiconductor
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2SD768(K) Silicon NPN Epitaxial Application Medium speed and power switching complementary pair with 2SB727(K) Outline TO-220AB 2 1 1. Base 2. Collector (Flange) 3. Emitter 1 2 3 3 kΩ (Typ) 200 Ω (Typ) 3 Absolute Maximum Ratings (Ta = 25°C) Item Collector to base voltage Collector to emitter voltage Emitter to base voltage Collector current Collector peak current Collector power dissipation Junction temperature Storage temperature Note: 1. Value at TC = 25°C. Symbol VCBO VCEO VEBO IC I C(peak) PC * Tj Tstg 1 Ratings 120 120 7 6 10 40 150 –55 to +150 Unit V V V A A W °C °C Free Datasheet http://www.datasheet4u.com/ 2SD768(K) Electrical Characteristics (Ta = 25°C) Item Symbol Min 120 7 — — 1000 — — — — — — Typ — — — — — — — — — 1.0 3. [ ... ]