PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

UT44Semiconductor Device,diode

Micro Uspd Inc · NSN 5961-00-146-3870 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-146-3870 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-146-3870. Primary manufacturer part number: UT44.
Features
  • Semiconductor Device,diode — FSC 5961
  • Features Provided: HERMETICALLY SEALED CASE
  • Terminal Length: 1.000 INCHES MINIMUM IN
  • Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS JUNCTION DEGC
  • Overall Diameter: 0.065 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
  • Current Rating Per Characteristic: 30.00 AMPERES MAXIMUM PEAK FORWARD SURGE CURRENT
  • Mounting Method: TERMINAL
  • Voltage Rating in Volts Per Characteristic: 400.0 MAXIMUM WORKING PEAK REVERSE VOLTAGE
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
  • Applications requiring Glass Enclosure construction
General Description

The Semiconductor Device,diode, cataloged under National Stock Number 5961-00-146-3870, 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 Micro Uspd Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 39 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
NSN5961-00-146-3870
Primary Part NumberUT44
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerMicro Uspd Inc
StatusCANCELLED
Features ProvidedHERMETICALLY SEALED CASE
Terminal Length1.000 INCHES MINIMUM IN
Maximum Operating Temp Per Measurement Point175.0 CELSIUS JUNCTION DEGC
Overall Diameter0.065 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
Current Rating Per Characteristic30.00 AMPERES MAXIMUM PEAK FORWARD SURGE CURRENT
Mounting MethodTERMINAL
Voltage Rating in Volts Per Characteristic400.0 MAXIMUM WORKING PEAK REVERSE VOLTAGE
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
Test Data Document81349-MIL-PRF-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
MaterialGLASS ENCLOSURE
MaterialSILICON SEMICONDUCTOR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5961-00-005-7015 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-059-2904 INTERCHANGEABLE
Semiconductor Device,diode
5999-00-064-4627SM-C-544854 INTERCHANGEABLE
Shielding Gasket,electronic
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5961-00-102-91771N4384 INTERCHANGEABLE
Semiconductor Device,diode
General Semiconductor Inc
5961-00-104-0947531138-2 INTERCHANGEABLE
Semiconductor Device,diode
Raytheon Company Dba Raytheon
2530-00-164-0701100441 INTERCHANGEABLE
Brake Drum
Dana Off Highway Products, Llc
5961-00-181-0660 INTERCHANGEABLE
Semiconductor Device,diode
6210-00-247-1778 INTERCHANGEABLE
Lens,light
5961-00-249-6016110-65-2 INTERCHANGEABLE
Semiconductor Device,diode
Avionics Specialties, Inc.
5961-00-356-2978 INTERCHANGEABLE
Semiconductor Device,diode
Cross-Reference Index
Part NumberManufacturer
UT44 Micro Uspd Inc (USA)
JANTX1N5616A Adelco Elektronik Gmbh (DEU)
A65400 Power Designs Inc (USA)
1N1217B Westinghouse Electric Corp (USA)
1901-0389 Avago Technologies Us Inc Div Avago Technologies (USA)
1N4004 International Rectifier Corporation (USA)
36-075PC51 Spx Flow Us, Llc Dba Spx Valves & Controls (USA)
1901-0191 Hewlett-Packard Company Dba HP (USA)
SEM-0087-001 Xyz Marine Inc. (USA)
353-9019-070 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
35585 Thales Defense & Security Inc Dba Thales Communications Inc (USA)
10129861 Nimikkeistokeskus Ncb Finland (FIN)
JANTX1N3612 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
11-1N4004 Stoner Communications Inc (USA)
1N4004 Fairchild Semiconductor Corp (USA)
1N4004 Microsemi Corporation (USA)
SS44 Semtech Corporation (USA)
34531 Rca Corp Distribution and Special Products (USA)
1N4004 Newark Electronics Corporation Dba Newark (USA)
JANTX1N5616 Royal Malaysian Navy (MYS)
Related Parts
5961-00-005-7015INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-059-2904INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5999-00-064-4627INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
SM-C-544854
5961-00-102-9177INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
1N4384
5961-00-104-0947INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
531138-2
2530-00-164-0701INTERCHANGEABLE
BRAKE DRUM
100441
5961-00-181-0660INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
6210-00-247-1778INTERCHANGEABLE
LENS,LIGHT
5961-00-249-6016INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
110-65-2
5961-00-356-2978INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5330-00-375-1690INTERCHANGEABLE
GASKET
199413056
5945-00-396-2697INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
142364HA

Frequently Asked Questions

What is NSN 5961-00-146-3870?

NSN 5961-00-146-3870 is a Semiconductor Device,diode, manufactured by Micro Uspd Inc, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-146-3870?

NSN 5961-00-146-3870 has 50 cross-referenced part numbers: UT44 (Micro Uspd Inc), JANTX1N5616A (Adelco Elektronik Gmbh), A65400 (Power Designs Inc), 1N1217B (Westinghouse Electric Corp), 1901-0389 (Avago Technologies Us Inc Div Avago Technologies) and 45 more.

What NSN replaces 5961-00-146-3870?

There are 12 known substitutes for 5961-00-146-3870: 5961-00-005-7015, 5961-00-059-2904, 5999-00-064-4627 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of UT44?

Key specifications for UT44: Features Provided: HERMETICALLY SEALED CASE; Terminal Length: 1.000 INCHES MINIMUM IN; Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS JUNCTION DEGC; Overall Length: 0.130 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-146-3870 still in active supply?

NSN 5961-00-146-3870 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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