Part Number	2SD637 Datasheet
Manufacturer	Panasonic
Overview	Transistor 2SD637 Silicon NPN epitaxial planer type For low-power general amplification Unit: mm 6.9±0.1 1.5 2.5±0.1 1.0 1.0 2.4±0.2 2.0±0.2 3.5±0.1 s Features q q q 1.5 R0.9 R0.9 0.85 (Ta=25˚C) . q q q 1.5 R0.9 R0.9 0.85 (Ta=25˚C) Ratings 60 50 7 200 100 400 150 *55 ~ +150 Unit V V V mA mA mW ˚C ˚C 1:Base 2:Collector 3:Emitter 2.5 2.5 3 2 1 Parameter Collector to base voltage Collector to emitter voltage Emitter to base voltage Peak collector current Collector current Collector power dis.