BD235

BD235 BD237 Low voltage NPN power transistors Features ■ Low saturation voltage ■ NPN transistors Applications ■ Audio, power linear and switching applications Description The devices are manufactured in Planar technology with “Base Island” layout. The resulting transistor shows exceptional high gain performance coupled with very low saturation voltage. The PNP type is BD238. 1 2 3 SOT-32 (TO-126) Figure 1. Internal schematic diagram Table 1. Device summary Order codes BD235 BD237 Marking BD235 BD237 Package SOT-32 SOT-32 June 2009 Doc ID 4189 Rev 3 Packaging Tube Tube 1/9 www.st.com 9 Absolute maximum ratings 1 Absolute maximum ratings Table 2. Absolute maximum ratings Symbol Parameter VCBO VCER VCEO VEBO IC ICM PTOT Tstg TJ Collector-base voltage (IE = 0) Collector-emitter voltage (RBE = 1 kΩ) Collector-emitter voltage (IB = 0) Emitter-base voltage (IC = 0) Collector current Collector peak current (tp < ms) Total dissipation at Tcase = 25°C Storage tempera...