This post explains for the PNP Transistor.
The Part Number is B1237, 2SB1237.
The function of this semiconductor is -32V, -1A, PNP Transistor.
Manufacturer: Rohm
Preview images :
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Description:
This is Medium Power Transistor. ( -32V, -1A), 2SB1132 / 2SA1515S / 2SB1237
Features
1) Low VCE(sat). VCE(sat) = *0.2V (Typ.) (IC / IB = –500mA / –50mA)
2) Compliments 2SD1664 / 2SD1858.
Structure Epitaxial planar type PNP silicon transistor
Absolute maximum ratings ( Ta=25°C )
1. Collector to Base Voltage: Vcbo = – 40V
2. Collector to Emitter Voltage: Vceo = – 32V
3. Emitter to Base Voltage: Vebo = – 5V
4. Collector Current: Ic = -1 A
5. Collector Dissipation : Pc = 1 W
6. Junction Temperature: Tj = 150°C
7. Storage Temperature: Tsg = -55 ~ +150°C
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