The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-412-8499, 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 Microsemi Corp - Massachusetts. Government technical data includes 13 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5961-01-412-8499 |
| Primary Part Number | 1N4739AG |
| Item Name | Semiconductor Device,diode |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Microsemi Corp - Massachusetts |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 9.1 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-41 |
| Overall Diameter | 0.080 INCHES MINIMUM AND 0.107 INCHES MAXIMUM IN |
| Terminal Length | 1.100 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | 0.50 MILLIAMPERES MAXIMUM VOLTAGE REGULATOR DIODE CURRENT NEAR BREAKDOWN KNEE |
| Function for Which Designed | ZENER DIODE AND VOLTAGE REGULATOR |
| Material | SILICON SEMICONDUCTOR |
| Material | GLASS ENCLOSURE |
| Terminal Type and Quantity | 2 UNINSULATED WIRE LEAD |
| Power Rating Per Characteristic | 1.0 WATTS NOMINAL 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 |
| Part Number | Manufacturer |
|---|---|
| 1N4739AG | Microsemi Corp - Massachusetts (USA) |
| 1N4739A | British Sarozal Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 1N4739A | 5/9 Secondary reference Microsemi Corp.-Scottsdale Dba Microsemi |
| 1N4739A | 3/9 Design control — primary reference U.S. Government activity |
| RELEASE 5009A | 5/9 Secondary reference U.S. Government activity |
| 11784696 | C/1 Advisory reference — outside the item-of-supply concept Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| 1N4739A | 5/9 Secondary reference Freescale Semiconductor, Inc. |
NSN 5961-01-412-8499 is a Semiconductor Device,diode, manufactured by Microsemi Corp - Massachusetts, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-412-8499 has 2 manufacturer part numbers on file: 1N4739AG (Microsemi Corp - Massachusetts), 1N4739A (British Sarozal Ltd).
1 possible match (shared part number, not a government interchangeability claim): 5961-01-571-7345. Verify interchangeability with system specifications before substitution.
Key specifications for 1N4739AG: Voltage Rating in Volts Per Characteristic: 9.1 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-41; Overall Diameter: 0.080 INCHES MINIMUM AND 0.107 INCHES MAXIMUM IN. 13 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.