National Semiconductor 2N4922 NPN Silicon Power Transistor TO-126 Bench Tested
$9.95
Original National Semiconductor 2N4922 NPN silicon transistor in a TO-126 package. This vintage National Semiconductor device has been individually bench tested by RF Boneyard™ and verified for gain, junction integrity, saturation voltage, and leakage performance.
The 2N4922 is commonly encountered in power supply assemblies, amplifier driver stages, regulator circuits, industrial control equipment, and general-purpose electronic applications. Testing showed healthy transistor action, low saturation voltage, and no measurable collector leakage.
A good candidate for vintage electronics restoration, repair inventory, engineering projects, semiconductor collections, and replacement applications where compatibility has been confirmed by the buyer.
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
Audio Amplifiers
Power Supplies
Voltage Regulators
Industrial Electronics
Switching Circuits
Control Circuits
Vintage Electronics Repair
Buyer must verify compatibility before installation.
RF Boneyard Bench Notes
| Metric | Result |
| -------------------------- | ------------------------ |
| Device Type | NPN Silicon BJT |
| Pinout | Red-E, Green-C, Blue-B |
| hFE | 62 @ Ic = 5.01mA |
| Vbe @ Ib = 1.00mA | 0.601V |
| Vbe @ Ib = 5.00mA | 0.670V |
| VceSat | 0.019V |
| VceSat Test Conditions | Ic = 5.00mA, Ib = 1.00mA |
| Collector Leakage (IcLeak) | 0.000mA |
Gain Test: PASS
Junction Test: PASS
Leakage Test: PASS
Saturation Test: PASS
Shorted Junctions:
NONE DETECTED
Open Junctions:
NONE DETECTED
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