D1138 Transistor – 150V, 2A, NPN, Equivalent, 2SD1138 ( PDF )

Part Number: D1138, 2SD1138

Function: 150V, 2A, Silicon NPN Transistor

Package: TO-220AB Type

Manufacturer: Hitachi Semiconductor


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D1138 image


The D1138 is Silicon NPN Triple Diffused Transistor. Some advantages of the 2SD1138 include its high current rating, low saturation voltage, and relatively low cost. However, its high voltage rating may be insufficient for certain high voltage applications, and its gain may vary significantly between individual units.


Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = 200 V
2. Collector to Emitter Voltage: Vceo = 150 V
3. Emitter to Base Voltage: Vebo = 6 V
4. Collector Current: Ic = 2 A
5. Collector Dissipation : Pc = 1.8 W
6. Junction Temperature: Tj = 150°C
7. Storage Temperature: Tsg = -45 ~ +150°C


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1. Low frequency high voltage power amplifier TV vertical deflection output complementary pair with 2SB861

D1138 Transistor