The Semiconductor Device,photo, cataloged under National Stock Number 5961-01-005-9531, 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 Siemens Microelectronics Inc Optoelectronics Div. 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-005-9531 |
| Primary Part Number | SFH431-2 |
| Item Name | Semiconductor Device,photo |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Siemens Microelectronics Inc Optoelectronics Div |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 2.0 MAXIMUM REVERSE VOLTAGE, DC |
| Maximum Operating Temp Per Measurement Point | 80.0 CELSIUS AMBIENT AIR DEGC |
| Overall Diameter | 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN |
| Terminal Length | 0.500 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Semiconductor Material | GALLIUM ARSENIDE |
| Internal Configuration | POINT CONTACT |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | 200.00 MILLIAMPERES MAXIMUM FORWARD CURRENT, DC |
| Function for Which Designed | PHOTOTRANSISTOR |
| Material | GLASS ENCLOSURE |
| Terminal Type and Quantity | 3 UNINSULATED WIRE LEAD |
| Terminal Circle Diameter | 0.100 INCHES NOMINAL IN |
| Power Rating Per Characteristic | 6.0 MILLIWATTS NOMINAL 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 |
|---|---|
| SFH431-2 | Siemens Microelectronics Inc Optoelectronics Div (USA) |
| Reference | Meaning |
|---|---|
| TIL31 | 5/9 Secondary reference Texas Instruments Incorporated |
| TIL31B | 5/9 Secondary reference Texas Instruments Incorporated |
| 446011-0001 | C/1 Advisory reference — outside the item-of-supply concept Thales Usa, Inc. Div Air Mobility Solutions ("ams") |
| 772344-1 | 3/2 Design control — primary reference U.S. Government activity |
| T1L31A | 5/9 Secondary reference Texas Instruments Incorporated |
| 57110-0041-00 | 5/9 Secondary reference Concurrent Computer Corporation |
NSN 5961-01-005-9531 is a Semiconductor Device,photo, manufactured by Siemens Microelectronics Inc Optoelectronics Div, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-005-9531 has 1 manufacturer part number on file: SFH431-2 (Siemens Microelectronics Inc Optoelectronics Div).
1 possible match (shared part number, not a government interchangeability claim): 5980-01-196-5248. Verify interchangeability with system specifications before substitution.
Key specifications for SFH431-2: Voltage Rating in Volts Per Characteristic: 2.0 MAXIMUM REVERSE VOLTAGE, DC; Maximum Operating Temp Per Measurement Point: 80.0 CELSIUS AMBIENT AIR DEGC; Overall Diameter: 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN; Terminal Length: 0.500 INCHES MINIMUM 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.
NSN 5961-01-005-9531 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.