PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1901-1081Semiconductor Device,diode

Hewlett-Packard Company Dba HP · NSN 5961-01-170-0551 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-170-0551 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-170-0551. Primary manufacturer part number: 1901-1081.
Features
  • Semiconductor Device,diode — FSC 5961
  • Material: GLASS ENCLOSURE
  • Material: SILICON SEMICONDUCTOR
  • Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS JUNCTION DEGC
  • Mounting Method: TERMINAL
  • Overall Diameter: 0.210 INCHES MAXIMUM IN
  • Voltage Rating in Volts Per Characteristic: 100.0 MAXIMUM REVERSE VOLTAGE, PEAK
  • Terminal Length: 1.062 INCHES MINIMUM IN
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 5961-01-170-0551, 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 Hewlett-Packard Company Dba HP. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-170-0551
Primary Part Number1901-1081
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerHewlett-Packard Company Dba HP
StatusACTIVE
MaterialGLASS ENCLOSURE
MaterialSILICON SEMICONDUCTOR
Maximum Operating Temp Per Measurement Point175.0 CELSIUS JUNCTION DEGC
Mounting MethodTERMINAL
Overall Diameter0.210 INCHES MAXIMUM IN
Voltage Rating in Volts Per Characteristic100.0 MAXIMUM REVERSE VOLTAGE, PEAK
Terminal Length1.062 INCHES MINIMUM IN
Current Rating Per Characteristic3.00 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
Features ProvidedHERMETICALLY SEALED CASE
Power Rating Per Characteristic2.5 WATTS MAXIMUM TOTAL POWER DISSIPATION
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5961-00-452-0548 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-023-7427 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-169-6515 INTERCHANGEABLE
Semiconductor Device,diode
Cross-Reference Index
Part NumberManufacturer
MR501 Freescale Semiconductor, Inc. (USA)
SR2564K Freescale Semiconductor, Inc. (USA)
SR2564K On Semiconductor Corporation (USA)
1901-1081 PRIMARY Hewlett-Packard Company Dba HP (USA)
Related Parts
5961-00-452-0548INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-023-7427INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-169-6515INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE

Frequently Asked Questions

What is NSN 5961-01-170-0551?

NSN 5961-01-170-0551 is a Semiconductor Device,diode, manufactured by Hewlett-Packard Company Dba HP, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-170-0551?

NSN 5961-01-170-0551 has 4 cross-referenced part numbers: MR501 (Freescale Semiconductor, Inc.), SR2564K (Freescale Semiconductor, Inc.), SR2564K (On Semiconductor Corporation), 1901-1081 (Hewlett-Packard Company Dba HP).

What NSN replaces 5961-01-170-0551?

There are 3 known substitutes for 5961-01-170-0551: 5961-00-452-0548, 5961-01-023-7427, 5961-01-169-6515. Verify interchangeability with system specifications before substitution.

What are the specifications of 1901-1081?

Key specifications for 1901-1081: Material: GLASS ENCLOSURE; Material: SILICON SEMICONDUCTOR; Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS JUNCTION DEGC; Overall Length: 0.380 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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