The Transistor, cataloged under National Stock Number 5961-00-487-3323, 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 Solid State Devices, Inc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5961-00-487-3323 |
| Primary Part Number | SPTX-1843 |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Solid State Devices, Inc |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 300.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 325.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 6.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN |
| Maximum Operating Temp Per Measurement Point | 200.0 CELSIUS JUNCTION DEGC |
| Mounting Facility Quantity | 2 |
| Mounting Method | UNTHREADED HOLE(S) |
| Semiconductor Material | SILICON |
| Internal Configuration | JUNCTION CONTACT |
| Current Rating Per Characteristic | 30.00 AMPERES MAXIMUM PEAK POINT CURRENT |
| Test Data Document | 22915-2T056 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| Terminal Type and Quantity | 1 CASE AND 2 TAB, SOLDER LUG |
| Electrode Internally-Electrically Connected to Case | COLLECTOR |
| Power Rating Per Characteristic | 175.0 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 |
|---|---|
| SPTX-1843 PRIMARY | Solid State Devices, Inc (USA) |
| 112SEB137 | Solitron Devices, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2T056LS0691 | 7/2 Vendor item drawing reference Northrop Grumman Corp Electronic Systems Defensive System Div |
| 12SE137 | 5/9 Secondary reference Solitron Devices, Inc. |
| SVT300-10 | 5/9 Secondary reference Trw Electronics and Defense Sector Rf Devices |
NSN 5961-00-487-3323 is a Transistor, manufactured by Solid State Devices, Inc, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-00-487-3323 has 2 manufacturer part numbers on file: SPTX-1843 (Solid State Devices, Inc), 112SEB137 (Solitron Devices, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5961-01-007-2228. Verify interchangeability with system specifications before substitution.
Key specifications for SPTX-1843: Overall Height: 0.360 INCHES MAXIMUM IN; Voltage Rating in Volts Per Characteristic: 300.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 325.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 6.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN; Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC; Mounting Facility Quantity: 2. 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.