The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-273-5154, 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 Microsemi Corp - Massachusetts Div Microsemi - Lowell. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-273-5154 |
| Primary Part Number | U187118 |
| Item Name | Semiconductor Device,diode |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Microsemi Corp - Massachusetts Div Microsemi - Lowell |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 30.0 MAXIMUM REVERSE VOLTAGE, DC AND 30.0 MINIMUM BREAKDOWN VOLTAGE, DC |
| Maximum Operating Temp Per Measurement Point | 125.0 CELSIUS JUNCTION DEGC |
| Joint Electronic Device Engineering Council/jedec/case Outline Designation | DO-34 |
| Overall Diameter | 0.050 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN |
| Terminal Length | 1.000 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Features Provided | HERMETICALLY SEALED CASE |
| Capacitance Rating in Picofarads | 6.0 MINIMUM AND 31.9 MAXIMUM |
| Current Rating Per Characteristic | 200.00 MILLIAMPERES MAXIMUM FORWARD CURRENT, DC AND 50.00 NANOAMPERES MAXIMUM REVERSE CURRENT, DC |
| Material | SILICON SEMICONDUCTOR |
| Material | GLASS ENCLOSURE |
| Terminal Type and Quantity | 2 UNINSULATED WIRE LEAD |
| Power Rating Per Characteristic | 400.0 MILLIWATTS MAXIMUM OFF-STATE 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 |
|---|---|
| U187118 PRIMARY | Microsemi Corp - Massachusetts Div Microsemi - Lowell (USA) |
| U187118 | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| KV3901 | 5/9 Secondary reference Lockheed Martin Corporation |
| 5961PL1275822 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 10073-7118 | 7/2 Vendor item drawing reference L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications |
| KV3901 | 5/1 Secondary reference Microsemi Corp - Massachusetts Div Microsemi - Lowell |
NSN 5961-01-273-5154 is a Semiconductor Device,diode, manufactured by Microsemi Corp - Massachusetts Div Microsemi - Lowell, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-273-5154 has 2 manufacturer part numbers on file: U187118 (Microsemi Corp - Massachusetts Div Microsemi - Lowell), U187118 (Lockheed Martin Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 5961-01-331-3185, 5961-01-393-8694. Verify interchangeability with system specifications before substitution.
Key specifications for U187118: Voltage Rating in Volts Per Characteristic: 30.0 MAXIMUM REVERSE VOLTAGE, DC AND 30.0 MINIMUM BREAKDOWN VOLTAGE, DC; Maximum Operating Temp Per Measurement Point: 125.0 CELSIUS JUNCTION DEGC; Joint Electronic Device Engineering Council/jedec/case Outline Designation: DO-34; Overall Diameter: 0.050 INCHES MINIMUM AND 0.075 INCHES MAXIMUM 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.