Motorola SJ4694 PNP Silicon Power Transistor TO-3 Metal Can Tested Pair
Full Description & History
Genuine Motorola SJ4694 PNP silicon power transistors offered as a tested pair (2 pcs). Made in USA and manufactured by Motorola in the classic TO-3 metal can package.
These vintage Motorola semiconductors are increasingly difficult to locate and are sought after by restorers, repair technicians, collectors, and electronics enthusiasts who prefer original USA-made components over modern substitutes when servicing legacy equipment.
The SJ4694 features rugged TO-3 metal can construction and is suitable for vintage amplifier repairs, industrial equipment maintenance, power supply restoration, and replacement of obsolete semiconductor devices where original Motorola parts are desired.
This listing includes the exact tested pair shown in the photographs. Both transistors retain original Motorola markings, vintage date codes, and classic USA-made construction.
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
Compatible Radios / Boards
Vintage audio amplifiers
Linear power supplies
Industrial control equipment
Legacy Motorola semiconductor replacements
Amateur radio equipment repairs
CB radio power supply circuits
Vintage test equipment restoration
Commercial communication equipment
Electronics training and educational projects
Obsolete equipment maintenance
RF Boneyard Bench Notes
RF Boneyard Bench Notes
hFE 20 47
IcLeak 0.000 mA 0.000 mA
VceSat 0.213 V 0.211 V
Protection Diode Yes Yes
Result: Both appear healthy, but they are not a matched pair due to the large hFE difference (20 vs 47).
For RF Boneyard I would list them as:
"2x Motorola SJ4694 Vintage TO-3 Power Transistors – Individually Bench Tested"
and include both test reports in the description.
If the other two SJ4694s test closer to one another, we may be able to create a true matched pair from those and sell the remaining two as another tested pair.
Ask the bench before you buy.
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