The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-170-2170, 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 Mbda Uk Ltd. Government technical data includes 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-170-2170 |
| Primary Part Number | B87554 |
| Item Name | Semiconductor Device,diode |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Mbda Uk Ltd |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 171.0 MINIMUM BREAKDOWN VOLTAGE, DC AND 189.0 MAXIMUM BREAKDOWN VOLTAGE, DC |
| Maximum Operating Temp Per Measurement Point | 175.0 CELSIUS JUNCTION DEGC |
| Joint Electronic Device Engineering Council/jedec/case Outline Designation | DO-13 |
| Overall Diameter | 0.235 INCHES MAXIMUM IN |
| Terminal Length | 1.000 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Current Rating Per Characteristic | 200.00 AMPERES MAXIMUM PEAK FORWARD SURGE CURRENT AND 34.00 AMPERES MAXIMUM PEAK PULSE CURRENT AND 5.00 MICROAMPERES MAXIMUM REVERSE CURRENT, DC |
| Specification/standard Data | 81349-MIL-S-19500/500 GOVERNMENT SPECIFICATION |
| Function for Which Designed | TRANSIENT SUPPRESSOR |
| Test Data Document | 81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Material | SILICON SEMICONDUCTOR |
| Terminal Type and Quantity | 2 UNINSULATED WIRE LEAD |
| Electrode Internally-Electrically Connected to Case | CATHODE |
| Power Rating Per Characteristic | 1500.0 WATTS MAXIMUM PEAK PULSE OUTPUT POWER |
| 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 |
|---|---|
| B87554 | Mbda Uk Ltd (GBR) |
| Reference | Meaning |
|---|---|
| MIL-PRF-19500/500 | 4/1 Identification reference U.S. Government activity |
| JANTXV1N5664A | 2/2 Government specification standardization U.S. Government activity |
| MIL-S-19500/500 | 5/9 Secondary reference U.S. Government activity |
NSN 5961-01-170-2170 is a Semiconductor Device,diode, manufactured by Mbda Uk Ltd, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-170-2170 has 1 manufacturer part number on file: B87554 (Mbda Uk Ltd).
Key specifications for B87554: Voltage Rating in Volts Per Characteristic: 171.0 MINIMUM BREAKDOWN VOLTAGE, DC AND 189.0 MAXIMUM BREAKDOWN VOLTAGE, DC; Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS JUNCTION DEGC; Joint Electronic Device Engineering Council/jedec/case Outline Designation: DO-13; Overall Diameter: 0.235 INCHES MAXIMUM IN. 14 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.