The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-115-9581, 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 Lds Test and Measurement Llc. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5961-01-115-9581 |
| Primary Part Number | 10-249183-120 |
| Item Name | Semiconductor Device,diode |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Lds Test and Measurement Llc |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 12.0 MAXIMUM NOMINAL REGULATOR VOLTAGE |
| Overall Diameter | 0.110 INCHES NOMINAL IN |
| Terminal Length | 0.944 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | 21.00 MILLIAMPERES MAXIMUM VOLTAGE REGULATOR DIODE CURRENT NEAR BREAKDOWN KNEE |
| Function for Which Designed | ZENER DIODE |
| Material | SILICON SEMICONDUCTOR |
| Material | CERAMIC ENCLOSURE |
| Terminal Type and Quantity | 2 UNINSULATED WIRE LEAD |
| Power Rating Per Characteristic | 1.0 WATTS 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 |
|---|---|
| ZD12A | Diodes Inc (USA) |
| 10-249183-120 PRIMARY | Lds Test and Measurement Llc (USA) |
| Reference | Meaning |
|---|---|
| 1EZ12D | 5/9 Secondary reference Microsemi Corp.-Scottsdale Dba Microsemi |
| 10-249183-120 | 5/9 Secondary reference U.S. Government activity |
NSN 5961-01-115-9581 is a Semiconductor Device,diode, manufactured by Lds Test and Measurement Llc, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-115-9581 has 2 manufacturer part numbers on file: ZD12A (Diodes Inc), 10-249183-120 (Lds Test and Measurement Llc).
2 possible matches (shared part number, not a government interchangeability claim): 7025-01-368-6748, 7025-01-372-2176. Verify interchangeability with system specifications before substitution.
Key specifications for 10-249183-120: Voltage Rating in Volts Per Characteristic: 12.0 MAXIMUM NOMINAL REGULATOR VOLTAGE; Overall Diameter: 0.110 INCHES NOMINAL IN; Terminal Length: 0.944 INCHES MINIMUM IN; Mounting Method: TERMINAL. 11 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.