The Transistor, cataloged under National Stock Number 5961-01-353-5520, 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 Keysight Technologies Inc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-353-5520 |
| Primary Part Number | 1854-1052 |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Keysight Technologies Inc |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 140.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 160.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 6.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN |
| Mounting Method | TERMINAL |
| Semiconductor Material | SILICON |
| Internal Configuration | JUNCTION CONTACT |
| Current Rating Per Characteristic | 600.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC |
| Material | PLASTIC ENCLOSURE |
| Terminal Type and Quantity | 3 RIBBON |
| Power Rating Per Characteristic | 225.0 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 |
|---|---|
| 1854-1052 PRIMARY | Keysight Technologies Inc (USA) |
| Reference | Meaning |
|---|---|
| MMBT5550LT1 | C/1 Advisory reference — outside the item-of-supply concept On Semiconductor Corporation |
| 1854-1052 | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
| 1854-1052 | 3/9 Design control — primary reference Keysight Technologies, Inc. |
| MMBT5550LT1 | 5/9 Secondary reference Freescale Semiconductor, Inc. |
NSN 5961-01-353-5520 is a Transistor, manufactured by Keysight Technologies Inc, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-353-5520 has 1 manufacturer part number on file: 1854-1052 (Keysight Technologies Inc).
Key specifications for 1854-1052: Overall Height: 0.062 INCHES NOMINAL IN; Voltage Rating in Volts Per Characteristic: 140.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 160.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 6.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN; Mounting Method: TERMINAL; Semiconductor Material: SILICON. 8 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.