The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-178-8478, is classified within Federal Supply Class 5961 (Semiconductor Devices and Associated Hardware) of the Electrical and Electronic Equipment Components group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-178-8478 |
| Item Name | Semiconductor Device,diode |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 6.2 NOMINAL NOMINAL REGULATOR VOLTAGE |
| Maximum Operating Temp Per Measurement Point | 200.0 CELSIUS JUNCTION DEGC |
| Joint Electronic Device Engineering Council/jedec/case Outline Designation | DO-204AH |
| Overall Diameter | 0.075 INCHES NOMINAL IN |
| Terminal Length | 1.250 INCHES NOMINAL IN |
| Mounting Method | TERMINAL |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | 5.00 MILLIAMPERES NOMINAL VOLTAGE REGULATOR DIODE CURRENT |
| Specification/standard Data | 80131-RELEASE 6559 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION |
| Voltage Tolerance in Percent | -0.5 TO 0.5 |
| Function for Which Designed | ZENER DIODE |
| Material | SILICON SEMICONDUCTOR |
| Material | GLASS ENCLOSURE |
| Terminal Type and Quantity | 2 UNINSULATED WIRE LEAD |
| Power Rating Per Characteristic | 500.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1N5995B | 3/9 Design control — primary reference U.S. Government activity |
| 1N5995B | 5/9 Secondary reference Freescale Semiconductor, Inc. |
| RELEASE 6559 | 5/9 Secondary reference U.S. Government activity |
NSN 5961-01-178-8478 is a Semiconductor Device,diode, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5961-01-340-6281, 5961-01-340-7077. Verify interchangeability with system specifications before substitution.
Key specifications for 5961-01-178-8478: Voltage Rating in Volts Per Characteristic: 6.2 NOMINAL NOMINAL REGULATOR VOLTAGE; Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC; Joint Electronic Device Engineering Council/jedec/case Outline Designation: DO-204AH; Overall Diameter: 0.075 INCHES NOMINAL IN. 15 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.