PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1N5558Semiconductor Device,diode

Micro Uspd Inc · NSN 5961-00-427-0326 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-427-0326 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-427-0326. Primary manufacturer part number: 1N5558.
Features
  • Semiconductor Device,diode — FSC 5961
  • Features Provided: HERMETICALLY SEALED CASE
  • Current Rating Per Characteristic: 5.70 AMPERES MAXIMUM PEAK POINT CURRENT
  • Material: GLASS ENCLOSURE
  • Overall Diameter: 0.235 INCHES MAXIMUM IN
  • Terminal Length: 1.000 INCHES MINIMUM AND 1.620 INCHES MAXIMUM IN
  • Mounting Method: TERMINAL
  • Power Rating Per Characteristic: 1.0 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
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 5961-00-427-0326, 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 14 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-427-0326
Primary Part Number1N5558
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerMicro Uspd Inc
StatusACTIVE
Features ProvidedHERMETICALLY SEALED CASE
Current Rating Per Characteristic5.70 AMPERES MAXIMUM PEAK POINT CURRENT
MaterialGLASS ENCLOSURE
Overall Diameter0.235 INCHES MAXIMUM IN
Terminal Length1.000 INCHES MINIMUM AND 1.620 INCHES MAXIMUM IN
Mounting MethodTERMINAL
Power Rating Per Characteristic1.0 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
Voltage Rating in Volts Per Characteristic175.0 MAXIMUM REVERSE VOLTAGE, INSTANTANEOUS
MaterialSILICON SEMICONDUCTOR
Specification/standard Data80131-RELEASE5967 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5961-00-409-3494 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-427-0322 INTERCHANGEABLE
Semiconductor Device,diode
Cross-Reference Index
Part NumberManufacturer
1N5558 Micro Uspd Inc (USA)
AE4541215 Rohde & Schwarz Gmbh & Co. Kommanditgesellschaft Dba R & S (DEU)
RELEASE5967 Electronic Industries Association
1N5558 General Semiconductor Industries Inc (USA)
28471-36303 Leonardo Mw Ltd (GBR)
1N5558 Electronic Industries Association
1N5558 Semicon Components Inc (USA)
1N5558 Silicon Transistor Corporation Dba Same (USA)
28471-36303 Leonardo Uk Ltd (GBR)
1N5558 Adelco Elektronik Gmbh (DEU)
98471-75008 Leonardo Mw Ltd (GBR)
98471-75008 Leonardo Uk Ltd (GBR)
1N5558A Adelco Elektronik Gmbh (DEU)
1N5558 Lacon Electronic Gmbh (DEU)
Related Parts
5961-00-409-3494INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-427-0322INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE

Frequently Asked Questions

What is NSN 5961-00-427-0326?

NSN 5961-00-427-0326 is a Semiconductor Device,diode, manufactured by Micro Uspd Inc, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-427-0326?

NSN 5961-00-427-0326 has 14 cross-referenced part numbers: 1N5558 (Micro Uspd Inc), AE4541215 (Rohde & Schwarz Gmbh & Co. Kommanditgesellschaft Dba R & S), RELEASE5967 (Electronic Industries Association), 1N5558 (General Semiconductor Industries Inc), 28471-36303 (Leonardo Mw Ltd) and 9 more.

What NSN replaces 5961-00-427-0326?

There are 2 known substitutes for 5961-00-427-0326: 5961-00-409-3494, 5961-00-427-0322. Verify interchangeability with system specifications before substitution.

What are the specifications of 1N5558?

Key specifications for 1N5558: Features Provided: HERMETICALLY SEALED CASE; Current Rating Per Characteristic: 5.70 AMPERES MAXIMUM PEAK POINT CURRENT; Material: GLASS ENCLOSURE; Overall Length: 0.570 INCHES MAXIMUM IN. 12 total characteristics are documented in the Federal Logistics Information System.

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