2sd2142.pdf datasheet:

2SD2142 0.3A , 40V NPN Plastic-Encapsulate Transistor Elektronische Bauelemente RoHS Compliant Product A suffix of -C specifies halogen & lead-free SOT-23 FEATURE Darlington connection for a high hFE. AL High input impedance. 33Top View C BMARKING 11 22K ER1M DH JF GPACKAGE INFORMATION Package MPQ LeaderSize Millimeter Millimeter REF. REF. Min. Max. Min. Max. A 2.80 3.04 G 0.09 0.18 SOT-23 3K 7 inch B 2.10 2.55 H 0.45 0.60 C 1.20 1.40 J 0.08 0.177 D 0.89 1.15 K 0.6 REF. E 1.78 2.04 L 0.89 1.02 F 0.30 0.50 Collector 3 1 Base 2 Emitter ABSOLUTE MAXIMUM RATINGS (TA = 25C unless otherwise specified) Parameter Symbol Ratings Unit Collector to Base Voltage V 40 V CBOCollector to Emitter Voltage V 32 V CEOEmitter to Base Voltage V 12 V EBOCollector Current - Continuous IC 300 mA Co