The Semiconductor Devices,unitized, cataloged under National Stock Number 5961-01-485-4957, 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 Leonardo Uk Ltd. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5961-01-485-4957 |
| Primary Part Number | VA-70-0595-001 |
| Item Name | Semiconductor Devices,unitized |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Leonardo Uk Ltd |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 50.0 MAXIMUM WORKING PEAK REVERSE VOLTAGE ALL SEMICONDUCTOR DEVICE DIODE |
| Maximum Operating Temp Per Measurement Point | 150.0 CELSIUS JUNCTION DEGC |
| Joint Electronic Device Engineering Council/jedec/case Outline Designation | SOT-23 |
| Mounting Method | TERMINAL |
| Semiconductor Material | SILICON ALL SEMICONDUCTOR DEVICE DIODE |
| Component Name and Quantity | 2 SEMICONDUCTOR DEVICE DIODE |
| Current Rating Per Characteristic | 200.00 MILLIAMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE AND 600.00 MILLIAMPERES MAXIMUM FORWARD CURRENT, DC ALL SEMICONDUCTOR DEVICE DIODE |
| Material | PLASTIC ENCLOSURE |
| Terminal Type and Quantity | 3 PRINTED CIRCUIT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| VA-70-0595-001 | Leonardo Uk Ltd (GBR) |
| MMBD4148 | National Semiconductor Corporation (USA) |
| Reference | Meaning |
|---|---|
| MMBD4148 | 3/9 Design control — primary reference Fairchild Semiconductor Corp Semiconductor Div |
| 10066307 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5961-01-485-4957 is a Semiconductor Devices,unitized, manufactured by Leonardo Uk Ltd, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-485-4957 has 2 manufacturer part numbers on file: VA-70-0595-001 (Leonardo Uk Ltd), MMBD4148 (National Semiconductor Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 5961-01-564-4533, 5961-01-566-8487. Verify interchangeability with system specifications before substitution.
Key specifications for VA-70-0595-001: Overall Height: 0.035 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN; Voltage Rating in Volts Per Characteristic: 50.0 MAXIMUM WORKING PEAK REVERSE VOLTAGE ALL SEMICONDUCTOR DEVICE DIODE; Maximum Operating Temp Per Measurement Point: 150.0 CELSIUS JUNCTION DEGC; Joint Electronic Device Engineering Council/jedec/case Outline Designation: SOT-23. 9 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.
NSN 5961-01-485-4957 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.