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ACY21 Germanium PNP Medium Power Amplifier Transistor.

ACY21 are Germanium PNP transistors designed for medium speed saturated switching applications.

Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Collector-Base Voltage, VCBO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
Collector-Emitter Voltage (RBE = 68Ω), VCER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20V
Emitter-Base Voltage, VEBo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12V
Collector Current, IC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mA
Base Current,Ib . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40mA
Total Device Dissipation (TC = +25°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650mW
Operating Junction Temperature, Tj . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55° to + 90°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -50° to + 90°C

These are full specification devices, with very low leakage and good gain. They are fully tested
and come with a technical data sheet and pin-out guide.