The Rectifier,semiconductor Device,u, cataloged under National Stock Number 5961-00-106-5259, 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 Fmc Technologies Inc Div Material Handling Solutions. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-00-106-5259 |
| Primary Part Number | ERF212B1 |
| Item Name | Rectifier,semiconductor Device,u |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Fmc Technologies Inc Div Material Handling Solutions |
| Status | ACTIVE |
| Overall Diameter | 1.340 INCHES MAXIMUM IN |
| Mounting Method | THREADED STUD(S) |
| Absolute Maximum Current Rating Per Characteristic | 3.60 AMPERES AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE |
| Absolute Maximum Voltage Rating in Volts Per Characteristic | 200.0 REVERSE VOLTAGE, PEAK |
| Material | SILICON |
| Terminal Type and Quantity | 4 TAB, SOLDER LUG |
| Circuit Connection Style Designator | BRIDGE 1 PHASE |
| 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 |
|---|---|
| ERF212B1 | Fmc Technologies Inc Div Material Handling Solutions (USA) |
| SS0329 | Microsemi Corp-Colorado (USA) |
| SS0329 | Fmc Technologies Inc Div Material Handling Solutions (USA) |
| 13214E3652 | Sterling Engine Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 66-8361 | 5/9 Secondary reference U.S. Government activity |
| 13214E3652 | 3/2 Design control — primary reference U.S. Government activity |
| R66172C43652 | 5/9 Secondary reference Unifab Industries Inc |
| 13214E3652 | 5/9 Secondary reference U.S. Government activity |
| C66-8361 | 5/9 Secondary reference Conditioning Semiconductor Devices Corp /csdc/ |
| R63870C14E3652 | 5/9 Secondary reference Unifab Industries Inc |
NSN 5961-00-106-5259 is a Rectifier,semiconductor Device,u, manufactured by Fmc Technologies Inc Div Material Handling Solutions, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-00-106-5259 has 4 manufacturer part numbers on file: ERF212B1 (Fmc Technologies Inc Div Material Handling Solutions), SS0329 (Microsemi Corp-Colorado), SS0329 (Fmc Technologies Inc Div Material Handling Solutions), 13214E3652 (Sterling Engine Co Inc).
Key specifications for ERF212B1: Overall Diameter: 1.340 INCHES MAXIMUM IN; Mounting Method: THREADED STUD(S); Overall Length: 1.560 INCHES NOMINAL IN; Absolute Maximum Current Rating Per Characteristic: 3.60 AMPERES AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE. 7 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.