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LESHAN RADIO COMPANY, LTD. M15â1/2 General Purpose Transistors MAXIMUM RATINGS Value RatingSymbol BCX17LT1BCX18LT1 Unit BCX19LT1BCX20LT1 CollectorâEmitter VoltageV CEO 4525Vdc CollectorâBase VoltageV CBO 5030Vdc EmitterâBase VoltageV EBO 5.05.0Vdc Collector Current â ContinuousI C 500500mAdc DEVICE MARKING BCX17LT1 = T1; BCX18LT1 = T2; BCX19LT1 = U1; BCX20LT1 = U2 THERMAL CHARACTERISTICS CharacteristicSymbolMaxUnit Total Device Dissipation FRâ 5 Board, (1) P D 225mW T A = 25°C Derate above 25°C 1.8mW/°C Thermal Resistance, Junction to Ambient R θJA 556°C/W Total Device Dissipation P D 300mW Alumina Substrate, (2) T A = 25°C Derate above 25°C 2.4mW/°C Thermal Resistance, Junction to AmbientR θJA 417°C/W Junction and Storage TemperatureT J , T stg â55 to +150°C 1. FRâ5 = 1.0 x 0.75 x 0.062 in. 2. Alumina = 0.4 x 0.3 x 0.024 in. 99.5% alumina. 1 3 2 PNP BCX17LT1 BCX18LT1 NPN BCX19LT1 BCX20LT1 Voltage and current are negative for PNP transistors CASE 318â08, STYLE 6 SOTâ23 (TOâ236AB) 2 EMITTER 3 COLLECTOR 1 BASE 2 EMITTER 3 COLLECTOR 1 BASE
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