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BD433/5/7 BD434/6/8 COMPLEMENTARY SILICON POWER TRANSISTORS s SGS-THOMSON PREFERRED SALESTYPES s COMPLEMENTARY 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 1 car-radio output stages. 2 3 The complementary PNP types are BD434, BD436, and BD438 respectively. SOT-32 INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit NPN BD433 BD435 BD437 PNP BD434 BD436 BD438 V CBO Collector-Base Voltage (I E = 0) 22 32 45 V V CES Collector-Emitter Voltage (V BE = 0) 22 32 45 V V CEO Collector-Emitter Voltage (I B = 0) 22 32 45 V V EBO Emitter-Base Voltage (I C = 0) 5 V IC Collector Current 4 A I CM Collector Peak Current (t 10 ms) 7 A IB Base Current 1 A P tot Total Dissipation at T c 25 o C 36 W o T stg Storage Temperature -65 to 150 C o Tj Max. Operating Junction Temperature 150 C For PNP types voltage and current values are negative. June 1997 1/4 BD433/434/435/436/437/438 THERMAL DATA o R thj-case Thermal Resistance Junction-case Max 3.5 C/W o R thj-amb Thermal Resistan