The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-148-4004, is classified within Federal Supply Class 5961 (Semiconductor Devices and Associated Hardware) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Crystalonics, Inc.. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-148-4004 |
| Primary Part Number | TCR502 |
| Item Name | Semiconductor Device,diode |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Crystalonics, Inc. |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 50.0 MAXIMUM PEAK GATE VOLTAGE |
| Maximum Operating Temp Per Measurement Point | 200.0 CELSIUS JUNCTION DEGC |
| Overall Diameter | 0.219 INCHES MAXIMUM IN |
| Terminal Length | 0.500 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Features Provided | HERMETICALLY SEALED CASE |
| Material | SILICON SEMICONDUCTOR |
| Material | PLASTIC ENCLOSURE |
| Terminal Type and Quantity | 2 UNINSULATED WIRE LEAD |
| Power Rating Per Characteristic | 400.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| TCR502 | Crystalonics, Inc. (USA) |
| J9016 | Siliconix Incorporated Div Siliconix (USA) |
| Reference | Meaning |
|---|---|
| 393454 | 5/2 Secondary reference U.S. Government activity |
| 4807-393454 | 5/9 Secondary reference U.S. Government activity |
| 4824-393454 | 5/2 Secondary reference U.S. Government activity |
| 4824-348482 | 3/2 Design control — primary reference U.S. Government activity |
| F2781 | 5/9 Secondary reference Solitron Devices, Inc. |
NSN 5961-01-148-4004 is a Semiconductor Device,diode, manufactured by Crystalonics, Inc., classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-148-4004 has 2 manufacturer part numbers on file: TCR502 (Crystalonics, Inc.), J9016 (Siliconix Incorporated Div Siliconix).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-545-2991. Verify interchangeability with system specifications before substitution.
Key specifications for TCR502: Voltage Rating in Volts Per Characteristic: 50.0 MAXIMUM PEAK GATE VOLTAGE; Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC; Overall Diameter: 0.219 INCHES MAXIMUM IN; Terminal Length: 0.500 INCHES MINIMUM IN. 10 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.