The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-147-9840, 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 Semicon Inc Div of the Lorvic Corp. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-147-9840 |
| Primary Part Number | 1N4188B |
| Item Name | Semiconductor Device,diode |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Semicon Inc Div of the Lorvic Corp |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 120.0 MAXIMUM NOMINAL REGULATOR VOLTAGE |
| Maximum Operating Temp Per Measurement Point | 200.0 CELSIUS AMBIENT AIR DEGC |
| Joint Electronic Device Engineering Council/jedec/case Outline Designation | DO29 |
| Overall Diameter | 0.135 INCHES NOMINAL IN |
| Terminal Length | 1.000 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Current Rating Per Characteristic | 2.00 MILLIAMPERES MAXIMUM VOLTAGE REGULATOR DIODE CURRENT |
| Specification/standard Data | 80131-RELEASE4327 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Material | SILICON SEMICONDUCTOR |
| Material | PLASTIC ENCLOSURE |
| Terminal Type and Quantity | 2 UNINSULATED WIRE LEAD |
| Terminal Circle Diameter | 0.029 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN |
| Power Rating Per Characteristic | 1.0 WATTS MAXIMUM TOTAL DEVICE 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 |
|---|---|
| 1N4188B PRIMARY | Semicon Inc Div of the Lorvic Corp (USA) |
| Reference | Meaning |
|---|---|
| RELEASE4327 | 5/9 Secondary reference U.S. Government activity |
| 1N4188B | 5/9 Secondary reference U.S. Government activity |
NSN 5961-01-147-9840 is a Semiconductor Device,diode, manufactured by Semicon Inc Div of the Lorvic Corp, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-147-9840 has 1 manufacturer part number on file: 1N4188B (Semicon Inc Div of the Lorvic Corp).
Key specifications for 1N4188B: Voltage Rating in Volts Per Characteristic: 120.0 MAXIMUM NOMINAL REGULATOR VOLTAGE; Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS AMBIENT AIR DEGC; Joint Electronic Device Engineering Council/jedec/case Outline Designation: DO29; Overall Diameter: 0.135 INCHES NOMINAL 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.
NSN 5961-01-147-9840 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.