PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

JAN1N5257ASemiconductor Device,diode

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5961-01-049-6935 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-049-6935 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-049-6935. Primary manufacturer part number: JAN1N5257A.
Features
  • Semiconductor Device,diode — FSC 5961
  • Material: GLASS ENCLOSURE
  • Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD
  • Material: SILICON SEMICONDUCTOR
  • Power Rating Per Characteristic: 500.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
  • Mounting Method: TERMINAL
  • Terminal Length: 1.000 INCHES MINIMUM IN
  • Overall Diameter: 0.085 INCHES MINIMUM AND 0.107 INCHES MAXIMUM 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 5961-01-049-6935, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-049-6935
Primary Part NumberJAN1N5257A
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
MaterialGLASS ENCLOSURE
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
MaterialSILICON SEMICONDUCTOR
Power Rating Per Characteristic500.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
Mounting MethodTERMINAL
Terminal Length1.000 INCHES MINIMUM IN
Overall Diameter0.085 INCHES MINIMUM AND 0.107 INCHES MAXIMUM IN
Voltage Rating in Volts Per Characteristic33.0 MAXIMUM NOMINAL REGULATOR VOLTAGE
Maximum Operating Temp Per Measurement Point200.0 CELSIUS AMBIENT AIR DEGC
Current Rating Per Characteristic3.80 MILLIAMPERES MAXIMUM MAXIMUM REVERSE SURGE CURRENT
Specification/standard Data80131-RELEASE5566 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5961-01-169-6514 INTERCHANGEABLE
Semiconductor Device,diode
Cross-Reference Index
Part NumberManufacturer
JAN1N5257A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1N5257A Electronic Industries Association
RELEASE5566 Electronic Industries Association
1N5257A Freescale Semiconductor, Inc. (USA)
1N5257A Texas Instruments Incorporated (USA)
Related Parts
5961-01-169-6514INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE

Frequently Asked Questions

What is NSN 5961-01-049-6935?

NSN 5961-01-049-6935 is a Semiconductor Device,diode, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-049-6935?

NSN 5961-01-049-6935 has 5 cross-referenced part numbers: JAN1N5257A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 1N5257A (Electronic Industries Association), RELEASE5566 (Electronic Industries Association), 1N5257A (Freescale Semiconductor, Inc.), 1N5257A (Texas Instruments Incorporated).

What NSN replaces 5961-01-049-6935?

There is 1 known substitute for 5961-01-049-6935: 5961-01-169-6514. Verify interchangeability with system specifications before substitution.

What are the specifications of JAN1N5257A?

Key specifications for JAN1N5257A: Material: GLASS ENCLOSURE; Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD; Material: SILICON SEMICONDUCTOR; Power Rating Per Characteristic: 500.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION. 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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