2SC2166 Original Pulled Mitsubishi Epitaxial Planar RF Transistor
$35.99
Original Mitsubishi 2SC2166 NPN silicon RF power transistor in the TO-220 style package. Commonly used in as driver CB radio transmitters, RF driver stages, low-power RF amplifier circuits, communications equipment repairs, and restoration projects. This device includes the internal protection diode and remains a popular replacement component for maintaining vintage RF equipment.
Historical Note:
The 2SC2166 was widely used throughout the 1980s and 1990s in CB radio and communications equipment as an RF driver and low-power output transistor. Original Toshiba-produced devices are increasingly sought after by restorers and technicians maintaining legacy radio equipment.
Origin Tracker
Obsolete Stock
Legacy or discontinued stock no longer in normal production flow. Future supply may be limited.
Pipeline quantities are informational and may change after arrival, inspection, sorting, testing, or donor teardown.
Compatible Radios / Boards
Confirmed donor/repair fit for Cobra 2000 GTL applications using the 2SC2166 RF driver transistor. May also apply to related CB radio platforms using the same 2SC2166 device, but buyer must verify board location, pinout, and service manual before installation.
RF Boneyard Bench Notes
Tester Lead Mapping:
Red-C Green-E Blue-B
Bench Measurements:
NPN Silicon BJT
hFE=31 at Ic=5.00mA
Vbe=0.644V at Ib=1.00mA
Vbe=0.702V at Ib=5.00mA
VceSat=0.029V at Ic=5.0mA and Ib=1.00mA
IcLeak=0.000mA
Protection Diode Present
Bench Evaluation:
PASS - Semiconductor analyzer testing completed successfully.
PASS - Protection diode detected and functional.
PASS - No measurable collector leakage detected.
PASS - Junction characteristics consistent with a functional RF power transistor.
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