PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1N645-1Semiconductor Device,diode

Microsemi Corp - Massachusetts · NSN 5961-00-085-6953 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-085-6953 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-085-6953. Primary manufacturer part number: 1N645-1.
Features
  • Semiconductor Device,diode — FSC 5961
  • Features Provided: HERMETICALLY SEALED CASE
  • Mounting Method: TERMINAL
  • Current Rating Per Characteristic: 0.40 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
  • Terminal Length: 1.000 INCHES MINIMUM IN
  • Voltage Rating in Volts Per Characteristic: 225.0 MAXIMUM REVERSE VOLTAGE, PEAK
  • Power Rating Per Characteristic: 0.6 WATTS MAXIMUM REVERSE POWER DISSIPATION, AVERAGE
  • Overall Diameter: 0.150 INCHES MAXIMUM IN
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 5961-00-085-6953, 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 Microsemi Corp - Massachusetts. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-085-6953
Primary Part Number1N645-1
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerMicrosemi Corp - Massachusetts
StatusACTIVE
Features ProvidedHERMETICALLY SEALED CASE
Mounting MethodTERMINAL
Current Rating Per Characteristic0.40 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
Terminal Length1.000 INCHES MINIMUM IN
Voltage Rating in Volts Per Characteristic225.0 MAXIMUM REVERSE VOLTAGE, PEAK
Power Rating Per Characteristic0.6 WATTS MAXIMUM REVERSE POWER DISSIPATION, AVERAGE
Overall Diameter0.150 INCHES MAXIMUM IN
Maximum Operating Temp Per Measurement Point150.0 CELSIUS AMBIENT AIR DEGC
MaterialSILICON SEMICONDUCTOR
MaterialGLASS ENCLOSURE
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5961-00-087-6047 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-123-8436 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-400-9854353-2607-001 INTERCHANGEABLE
Semiconductor Device,diode
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5961-00-415-28211489274-0000 INTERCHANGEABLE
Semiconductor Device,diode
Honeywell International Inc. Dba Honeywell International
5961-00-466-28681N645 INTERCHANGEABLE
Semiconductor Device,diode
Texas Instruments Incorporated
5961-00-577-6084 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-617-4347117257-001 INTERCHANGEABLE
Semiconductor Device,diode
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5961-00-626-0041 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-765-46121N645 INTERCHANGEABLE
Semiconductor Device,diode
Raytheon Company Div Corp
5961-00-797-9833 INTERCHANGEABLE
Semiconductor Device,diode
Cross-Reference Index
Part NumberManufacturer
10564656-9 Pd&e Electronics, Llc (USA)
1N645A Adelco Elektronik Gmbh (DEU)
1N645 Adelco Elektronik Gmbh (DEU)
10564656-9 Us Army Aviation and Missile Command (USA)
1N645-1 PRIMARY Microsemi Corp - Massachusetts (USA)
1N645 Texas Instruments Incorporated (USA)
Related Parts
5961-00-087-6047INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-123-8436INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-400-9854INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
353-2607-001
5961-00-415-2821INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
1489274-0000
5961-00-466-2868INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
1N645
5961-00-577-6084INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-617-4347INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
117257-001
5961-00-626-0041INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-765-4612INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
1N645
5961-00-797-9833INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-821-0710INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-845-0333INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
479-0164-001

Frequently Asked Questions

What is NSN 5961-00-085-6953?

NSN 5961-00-085-6953 is a Semiconductor Device,diode, manufactured by Microsemi Corp - Massachusetts, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-085-6953?

NSN 5961-00-085-6953 has 6 cross-referenced part numbers: 10564656-9 (Pd&e Electronics, Llc), 1N645A (Adelco Elektronik Gmbh), 1N645 (Adelco Elektronik Gmbh), 10564656-9 (Us Army Aviation and Missile Command), 1N645-1 (Microsemi Corp - Massachusetts) and 1 more.

What NSN replaces 5961-00-085-6953?

There are 12 known substitutes for 5961-00-085-6953: 5961-00-087-6047, 5961-00-123-8436, 5961-00-400-9854 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1N645-1?

Key specifications for 1N645-1: Features Provided: HERMETICALLY SEALED CASE; Mounting Method: TERMINAL; Current Rating Per Characteristic: 0.40 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE; Terminal Length: 1.000 INCHES MINIMUM IN. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com