The Semiconductor Devices,unitized, cataloged under National Stock Number 5961-01-336-1797, 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 Chromalox Inc Dba Chromalox Precision Heat and Control, Inc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-336-1797 |
| Primary Part Number | 312303 |
| Item Name | Semiconductor Devices,unitized |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 480.0 MAXIMUM NOMINAL REGULATOR VOLTAGE FIRST SEMICONDUCTOR DEVICE THYRISTOR |
| Voltage Rating in Volts Per Characteristic | 480.0 MAXIMUM NOMINAL REGULATOR VOLTAGE SECOND SEMICONDUCTOR DEVICE DIODE |
| Mounting Method | PRESS FIT |
| Semiconductor Material | SILICON FIRST SEMICONDUCTOR DEVICE THYRISTOR |
| Semiconductor Material | SILICON SECOND SEMICONDUCTOR DEVICE DIODE |
| Component Name and Quantity | 3 SEMICONDUCTOR DEVICE DIODE AND 3 SEMICONDUCTOR DEVICE THYRISTOR |
| Current Rating Per Characteristic | 60.00 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE FIRST SEMICONDUCTOR DEVICE THYRISTOR |
| Current Rating Per Characteristic | 60.00 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE SECOND SEMICONDUCTOR DEVICE DIODE |
| Function for Which Designed | SWITCHING |
| Material | CERAMIC ENCLOSURE |
| Terminal Type and Quantity | 6 UNINSULATED WIRE LEAD |
| Power Rating Per Characteristic | 41.5 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION FIRST SEMICONDUCTOR DEVICE THYRISTOR |
| Power Rating Per Characteristic | 41.5 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION SECOND SEMICONDUCTOR DEVICE DIODE |
| 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 |
|---|---|
| 312303 PRIMARY | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
| Reference | Meaning |
|---|---|
| 312303 | 5/9 Secondary reference Chromalox, Inc. Div Chromalox |
| TD156.0853 ITEM 31 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 4130-31810 | 3/9 Design control — primary reference Chromalox, Inc. Div Chromalox |
NSN 5961-01-336-1797 is a Semiconductor Devices,unitized, manufactured by Chromalox Inc Dba Chromalox Precision Heat and Control, Inc, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-336-1797 has 1 manufacturer part number on file: 312303 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc).
Key specifications for 312303: Overall Height: 21.000 INCHES NOMINAL IN; Voltage Rating in Volts Per Characteristic: 480.0 MAXIMUM NOMINAL REGULATOR VOLTAGE FIRST SEMICONDUCTOR DEVICE THYRISTOR; Voltage Rating in Volts Per Characteristic: 480.0 MAXIMUM NOMINAL REGULATOR VOLTAGE SECOND SEMICONDUCTOR DEVICE DIODE; Mounting Method: PRESS FIT. 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.