RCA 18875047 Vintage TO-3 PNP Silicon Power Transistor
$19.99
Original RCA 18875047 PNP silicon power transistor housed in the rugged TO-3 metal can package. This vintage RCA device has been professionally tested and verified functional with strong gain, excellent saturation characteristics, and no measurable collector leakage. Suitable for vintage electronics restoration, industrial controls, communications equipment, power supplies, audio amplifiers, power regulation circuits, and semiconductor collections. The TO-3 package was widely used in commercial and industrial electronics requiring reliable power handling and long service life.
Historical Note:
RCA was one of America's leading semiconductor manufacturers during the 1960s, 1970s, and 1980s. Many RCA power transistors carried OEM and house-number markings for use in industrial controls, communications equipment, power supplies, and consumer electronics. Vintage RCA TO-3 semiconductors remain highly sought after by restorers and collectors due to their robust construction and historical significance in the early solid-state era.
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
Vintage Electronics Restoration, Industrial Controls, Communications Equipment, Power Supplies, Audio Amplifiers, Test Equipment Repair, Semiconductor Collection, Power Switching Applications, Electronics Experimentation
RF Boneyard Bench Notes
Tester Lead Mapping:
Red-C Green-B Blue-E
Bench Measurements:
PNP Silicon BJT
hFE=182 at Ic=4.99mA
Vbe=0.540V at Ib=1.00mA
Vbe=0.589V at Ib=5.00mA
VceSat=0.018V at Ic=5.0mA and Ib=1.00mA
IcLeak=0.000mA
Bench Evaluation:
PASS - Semiconductor analyzer testing completed successfully.
PASS - Strong gain measurement of hFE 182 recorded.
PASS - Excellent saturation voltage of 0.018V recorded.
PASS - No measurable collector leakage detected.
PASS - Suitable for restoration, repair, substitution research, and collector inventory.
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