The Transistor, cataloged under National Stock Number 5961-01-333-6201, is classified within Federal Supply Class 5961 (Semiconductor Devices and Associated Hardware) of the Electrical and Electronic Equipment Components group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5961-01-333-6201 |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 40.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN |
| Maximum Operating Temp Per Measurement Point | 150.0 CELSIUS JUNCTION DEGC |
| Mounting Facility Quantity | 1 |
| Joint Electronic Device Engineering Council/jedec/case Outline Designation | TO-220AB |
| Terminal Length | 12.70 MILLIMETERS MINIMUM AND 14.73 MILLIMETERS MAXIMUM MM |
| Mounting Method | TERMINAL AND UNTHREADED HOLE(S) |
| Transfer Ratio | 1000.0 MINIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER |
| Semiconductor Material | SILICON |
| Internal Configuration | JUNCTION CONTACT-DARLINGTON CONNECTED |
| Current Rating Per Characteristic | 8.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC |
| Specification/standard Data | 80131-RELEASE 6713 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION |
| Function for Which Designed | AMPLIFIER |
| Material | PLASTIC ENCLOSURE |
| Terminal Type and Quantity | 3 PIN |
| Electrode Internally-Electrically Connected to Case | COLLECTOR |
| Power Rating Per Characteristic | 26.0 WATTS MAXIMUM 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 |
| Reference | Meaning |
|---|---|
| 2N6666 | 3/9 Design control — primary reference U.S. Government activity |
| 2N6666 | 5/9 Secondary reference Renesas Electronics America Inc |
| 937938 | 5/9 Secondary reference Racal Communications Systems Ltd |
| RELEASE 6713 | 5/9 Secondary reference U.S. Government activity |
| 937938 | 5/1 Secondary reference Thales Uk Limited Secure Communications and Information Systems |
| 937938 | C/1 Advisory reference — outside the item-of-supply concept Thales Defense & Security Inc Dba Thales Communications Inc |
NSN 5961-01-333-6201 is a Transistor, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6015-01-572-5819. Verify interchangeability with system specifications before substitution.
Key specifications for 5961-01-333-6201: Overall Height: 3.56 MILLIMETERS MINIMUM AND 4.82 MILLIMETERS MAXIMUM MM; Voltage Rating in Volts Per Characteristic: 40.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN; Maximum Operating Temp Per Measurement Point: 150.0 CELSIUS JUNCTION DEGC; Mounting Facility Quantity: 1. 16 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.