The Transistor, cataloged under National Stock Number 5961-01-196-4900, 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 Siliconix Incorporated Div Siliconix. Government technical data includes 12 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5961-01-196-4900 |
| Primary Part Number | U310-E3 |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Siliconix Incorporated Div Siliconix |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | -25.0 MAXIMUM GATE TO SOURCE VOLTAGE |
| Maximum Operating Temp Per Measurement Point | 125.0 CELSIUS AMBIENT AIR DEGC |
| Overall Diameter | 0.230 INCHES MAXIMUM IN |
| Terminal Length | 0.500 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Semiconductor Material | SILICON |
| Internal Configuration | FIELD EFFECT |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | 20.00 MILLIAMPERES MAXIMUM GATE CURRENT |
| Terminal Type and Quantity | 3 UNINSULATED WIRE LEAD |
| Terminal Circle Diameter | 0.100 INCHES NOMINAL IN |
| Power Rating Per Characteristic | 500.0 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 |
|---|---|
| U310 | Siliconix Incorporated Div Siliconix (USA) |
| U310-E3 PRIMARY | Siliconix Incorporated Div Siliconix (USA) |
| Reference | Meaning |
|---|---|
| FN5179 | 5/1 Secondary reference Bae Systems Australia Limited Div Bae Systems Australia Limited |
| FN4605 | 5/9 Secondary reference Siliconix Incorporated Div Siliconix |
| U310 | 5/1 Secondary reference Freescale Semiconductor, Inc. |
| 5961PL1293413 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 653219-2 | 5/9 Secondary reference U.S. Government activity |
NSN 5961-01-196-4900 is a Transistor, manufactured by Siliconix Incorporated Div Siliconix, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-196-4900 has 2 manufacturer part numbers on file: U310 (Siliconix Incorporated Div Siliconix), U310-E3 (Siliconix Incorporated Div Siliconix).
1 possible match (shared part number, not a government interchangeability claim): 5961-01-273-6732. Verify interchangeability with system specifications before substitution.
Key specifications for U310-E3: Voltage Rating in Volts Per Characteristic: -25.0 MAXIMUM GATE TO SOURCE VOLTAGE; Maximum Operating Temp Per Measurement Point: 125.0 CELSIUS AMBIENT AIR DEGC; Overall Diameter: 0.230 INCHES MAXIMUM IN; Terminal Length: 0.500 INCHES MINIMUM IN. 12 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.