Soft Start Circuit
BD139
Description These epitaxial planar transistors are mounted in the SOT-32 plastic package. They are designed for audio amplifiers and drivers utilizing complementary or quasi-complementary circuits. The NPN types are the BD135 and BD139, and the complementary PNP types are the BD136 and BD140.
VCBO Collector-base voltage (IE = 0) 45 80 -45 -80 V VCEO Collector-emitter voltage (IB = 0) 45 80 -45 -80 V VEBO Emitter-base voltage (IC = 0) 5 -5 V IC Collector current 1.5 -1.5 A ICM Collector peak current 3 -3 A IB Base current 0.5 -0.5 A PTOT Total dissipation at Tc ≤ 25 °C 12.5 W PTOT Total dissipation at Tamb ≤ 25 °C 1.25 W Tstg Storage temperature -65 to 150 °C Tj Max. operating junction temperature 150 °C
Soft Start Circuit
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