bc337~bc338.pdf datasheet:

BC337 / BC338 NPN Plastic-Encapsulate Transistor Elektronische Bauelemente RoHS Compliant Product A suffix of -C specifies halogen & lead-free TO-92 FEATURE G H Power Dissipation 1Collector 1112Base 222J3Emitter 333CLASSIFICATION OF hFE A DProduct-Rank BC337-16 BC337-25 BC337-40 Millimeter REF. BMin. Max. A 4.40 4.70 Product-Rank BC338-16 BC338-25 BC338-40 B 4.30 4.70 KC 12.70 - Range 100~250 160~400 250~630 D 3.30 3.81 E 0.36 0.56 F 0.36 0.51 E C FG 1.27 TYP. H 1.10 - J 2.42 2.66 K 0.36 0.76 Collector 1 2 Base 3 Emitter ABSOLUTE MAXIMUM RATINGS (TA = 25C unless otherwise specified) Parameter Symbol Ratings Unit BC337 50 Collector to Base Voltage VCBO V BC338 30 BC337 45 Collector to Emitter Voltage VCEO V BC338 25 Emitter to Base Voltage V 5 V EBOCollector Cur