The Transistor, cataloged under National Stock Number 5961-01-033-2330, 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 Varian Associates Inc Communications Transistor Div. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-033-2330 |
| Primary Part Number | D20-28B |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Varian Associates Inc Communications Transistor Div |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 50.0 NOMINAL BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, WITH BASE SHORT-CIRCUITED TO EMITTER |
| Maximum Operating Temp Per Measurement Point | 200.0 CELSIUS JUNCTION DEGC |
| Mounting Facility Quantity | 1 |
| Mounting Method | THREADED STUD(S) |
| Semiconductor Material | SILICON |
| Internal Configuration | JUNCTION CONTACT |
| Nominal Thread Size | 0.164 INCHES IN |
| Current Rating Per Characteristic | 2.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC |
| Material | CERAMIC ENCLOSURE |
| Terminal Type and Quantity | 4 FERRULE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Electrode Internally-Electrically Connected to Case | COLLECTOR |
| Power Rating Per Characteristic | 40.0 WATTS MAXIMUM TOTAL POWER DISSIPATION |
| 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 |
|---|---|
| CD3707 | Rf Gain Ltd (USA) |
| D20-28B PRIMARY | Varian Associates Inc Communications Transistor Div (USA) |
| 4038796-0001 | Raytheon Company Dba Raytheon Co (USA) |
NSN 5961-01-033-2330 is a Transistor, manufactured by Varian Associates Inc Communications Transistor Div, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-033-2330 has 3 manufacturer part numbers on file: CD3707 (Rf Gain Ltd), D20-28B (Varian Associates Inc Communications Transistor Div), 4038796-0001 (Raytheon Company Dba Raytheon Co).
Key specifications for D20-28B: Voltage Rating in Volts Per Characteristic: 50.0 NOMINAL BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, WITH BASE SHORT-CIRCUITED TO EMITTER; Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC; Mounting Facility Quantity: 1; Mounting Method: THREADED STUD(S). 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.
NSN 5961-01-033-2330 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.