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BD433/5/7 BD434/6/8 COMPLEMENTARY SILICON POWER TRANSISTORS nSTMicroelectronics PREFERRED SALESTYPE nCOMPLEMENTARY PNP - NPN DEVICES DESCRIPTION The BD433, BD435, and BD437 are silicon epitaxial-base NPN power transistors in Jedec SOT-32 plastic package, intented for use in medium power linear and switching applications. The BD433 is especially suitable for use in car-radio output stages. The complementary PNP types are BD434, BD436, and BD438 respectively. ® INTERNAL SCHEMATIC DIAGRAM February 2003 3 2 1 SOT-32 ABSOLUTE MAXIMUM RATINGS SymbolParameterValueUnit NPNBD433BD435BD437 PNPBD434BD436BD438 V CBO Collector-Base Voltage (I E = 0)223245V V CES Collector-Emitter Voltage (V BE = 0)223245V V CEO Collector-Emitter Voltage (I B = 0)223245V V EBO Emitter-Base Voltage (I C = 0)5V I C Collector Current4A I CM Collector Peak Current (t ≤ 10 ms) 7A I B Base Current1A P tot Total Dissipation at T c ≤ 25 o C 36W T stg Storage Temperature-65 to 150 o C T j Max. Operating Junction Temperature150 o C For PNP types voltage and current values are negative. 1/4