The Transistor, cataloged under National Stock Number 5961-00-710-2780, 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 Gpd Optoelectronics Corp. Div Gpd Optoelectronics. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5961-00-710-2780 |
| Primary Part Number | 2N636A |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Gpd Optoelectronics Corp. Div Gpd Optoelectronics |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 25.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 15.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, WITH SPECIFIED RESISTANCE BETWEEN BASE AND EMITTER AND 25.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN |
| Maximum Operating Temp Per Measurement Point | 100.0 CELSIUS JUNCTION DEGC |
| Overall Diameter | 0.370 INCHES MAXIMUM IN |
| Terminal Length | 1.500 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Semiconductor Material | GERMANIUM |
| Internal Configuration | JUNCTION CONTACT |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | 300.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC AND 6.00 MICROAMPERES MAXIMUM COLLECTOR CUTOFF CURRENT, DC, EMITTER OPEN |
| Terminal Type and Quantity | 3 UNINSULATED WIRE LEAD |
| Terminal Circle Diameter | 0.200 INCHES NOMINAL IN |
| Electrode Internally-Electrically Connected to Case | COLLECTOR |
| Power Rating Per Characteristic | 150.0 MILLIWATTS MAXIMUM COLLECTOR 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 |
|---|---|
| 2N636A | Gpd Optoelectronics Corp. Div Gpd Optoelectronics (USA) |
| 2N636A | New Jersey Semi-Conductor Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| RELEASE2750 | 5/9 Secondary reference U.S. Government activity |
| 2N636A | 3/9 Design control — primary reference U.S. Government activity |
| 2N636A | 5/1 Secondary reference Lockheed Martin Corporation Div Rms |
| 124-2719-00 | 5/1 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| 2N636A | 5/9 Secondary reference Syntar Industries Inc |
NSN 5961-00-710-2780 is a Transistor, manufactured by Gpd Optoelectronics Corp. Div Gpd Optoelectronics, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-00-710-2780 has 2 manufacturer part numbers on file: 2N636A (Gpd Optoelectronics Corp. Div Gpd Optoelectronics), 2N636A (New Jersey Semi-Conductor Products, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5961-00-852-5665. Verify interchangeability with system specifications before substitution.
Key specifications for 2N636A: Voltage Rating in Volts Per Characteristic: 25.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 15.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, WITH SPECIFIED RESISTANCE BETWEEN BASE AND EMITTER AND 25.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN; Maximum Operating Temp Per Measurement Point: 100.0 CELSIUS JUNCTION DEGC; Overall Diameter: 0.370 INCHES MAXIMUM IN; Terminal Length: 1.500 INCHES MINIMUM 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.