PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

F25Semiconductor Device,diode

Semtech Corporation · NSN 5961-00-491-2181 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-491-2181 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-491-2181. Primary manufacturer part number: F25.
Features
  • Semiconductor Device,diode — FSC 5961
  • Current Rating Per Characteristic: 0.10 MICROAMPERES MAXIMUM REVERSE CURRENT, PEAK
  • Material: SILICON SEMICONDUCTOR
  • Features Provided: HERMETICALLY SEALED CASE
  • Mounting Method: TERMINAL
  • Voltage Rating in Volts Per Characteristic: 2500.0 MAXIMUM REVERSE VOLTAGE, PEAK
  • Overall Diameter: 0.070 INCHES MAXIMUM IN
  • Maximum Operating Temp Per Measurement Point: 150.0 CELSIUS AMBIENT AIR DEGC
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
  • Applications requiring Silicon Semiconductor construction
General Description

The Semiconductor Device,diode, cataloged under National Stock Number 5961-00-491-2181, is classified within Federal Supply Class 5961 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Semtech Corporation. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-491-2181
Primary Part NumberF25
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerSemtech Corporation
StatusCANCELLED
Current Rating Per Characteristic0.10 MICROAMPERES MAXIMUM REVERSE CURRENT, PEAK
MaterialSILICON SEMICONDUCTOR
Features ProvidedHERMETICALLY SEALED CASE
Mounting MethodTERMINAL
Voltage Rating in Volts Per Characteristic2500.0 MAXIMUM REVERSE VOLTAGE, PEAK
Overall Diameter0.070 INCHES MAXIMUM IN
Maximum Operating Temp Per Measurement Point150.0 CELSIUS AMBIENT AIR DEGC
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
Precious Material and LocationTERMINALS SILVER
Precious MaterialSILVER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5340-00-083-4912F1-5 INTERCHANGEABLE
Standoff,threaded,spacing
Roller Bearing Co of America, Inc Div Pic Design
3110-00-117-4721F15 INTERCHANGEABLE
Bearing,ball,thrust
Abc Acquisition Company Dba Aetna Bearing Company
5330-00-196-4357F2.5 INTERCHANGEABLE
Seal,cylinder
Ja Moody Llc
4730-00-266-0543SAE J513 10-8 010102BA INTERCHANGEABLE
Adapter,straight,pipe to Tube
Sae International Dba Sae International
5310-00-420-7256BS1241PC13 INTERCHANGEABLE
Nut,plain,round
Circor Naval Solutions Llc Dba Warren Pumps
5930-00-501-1442F1-5 INTERCHANGEABLE
Switch,rotary
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
5305-00-717-5467MS35307-362 INTERCHANGEABLE
Screw,cap,hexagon Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4920-00-769-2135 INTERCHANGEABLE
Adapter Assembly,interface Devic
4720-00-848-380191-915 INTERCHANGEABLE
Tubing,nonmetallic
Trico Products Corporation
2530-00-972-8424592214 INTERCHANGEABLE
Cylinder Assembly,actuating,line
Brp Us Inc
Cross-Reference Index
Part NumberManufacturer
SFM25 Semtech Corporation (USA)
013-879 Ampex Systems Corp (USA)
013-903 Ampex Systems Corp (USA)
F15 Semtech Corporation (USA)
SFM10 Semtech Corporation (USA)
F25 PRIMARY Semtech Corporation (USA)
013-905 Ampex Systems Corp (USA)
Related Parts
5340-00-083-4912INTERCHANGEABLE
STANDOFF,THREADED,SPACING
F1-5
3110-00-117-4721INTERCHANGEABLE
BEARING,BALL,THRUST
F15
5330-00-196-4357INTERCHANGEABLE
SEAL,CYLINDER
F2.5
4730-00-266-0543INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
SAE J513 10-8 010102BA
5310-00-420-7256INTERCHANGEABLE
NUT,PLAIN,ROUND
BS1241PC13
5930-00-501-1442INTERCHANGEABLE
SWITCH,ROTARY
F1-5
5305-00-717-5467INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
MS35307-362
4920-00-769-2135INTERCHANGEABLE
ADAPTER ASSEMBLY,INTERFACE DEVIC
4720-00-848-3801INTERCHANGEABLE
TUBING,NONMETALLIC
91-915
2530-00-972-8424INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
592214
6130-01-056-7366INTERCHANGEABLE
POWER SUPPLY
F-25
4730-01-119-5221INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
F25

Frequently Asked Questions

What is NSN 5961-00-491-2181?

NSN 5961-00-491-2181 is a Semiconductor Device,diode, manufactured by Semtech Corporation, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-491-2181?

NSN 5961-00-491-2181 has 7 cross-referenced part numbers: SFM25 (Semtech Corporation), 013-879 (Ampex Systems Corp), 013-903 (Ampex Systems Corp), F15 (Semtech Corporation), SFM10 (Semtech Corporation) and 2 more.

What NSN replaces 5961-00-491-2181?

There are 12 known substitutes for 5961-00-491-2181: 5340-00-083-4912, 3110-00-117-4721, 5330-00-196-4357 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of F25?

Key specifications for F25: Current Rating Per Characteristic: 0.10 MICROAMPERES MAXIMUM REVERSE CURRENT, PEAK; Material: SILICON SEMICONDUCTOR; Features Provided: HERMETICALLY SEALED CASE; Mounting Method: TERMINAL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-491-2181 still in active supply?

NSN 5961-00-491-2181 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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