PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

577R721H11Semiconductor Device,diode

Trw Electronics and Defense Sector Rf Devices · NSN 5961-00-489-6863 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-489-6863 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-489-6863. Primary manufacturer part number: 577R721H11.
Features
  • Semiconductor Device,diode — FSC 5961
  • Material: SILICON SEMICONDUCTOR
  • Material: GLASS ENCLOSURE
  • Test Data Document: 81349-MIL-S-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.).
  • Mounting Method: TERMINAL
  • Features Provided: HERMETICALLY SEALED CASE
  • Current Rating Per Characteristic: 10.00 MICROAMPERES MAXIMUM REVERSE CURRENT, DC
  • Voltage Rating in Volts Per Characteristic: 70.0 MAXIMUM WORKING PEAK REVERSE VOLTAGE, MAXIMUM PEAK TOTAL VALUE
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 5961-00-489-6863, 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 Trw Electronics and Defense Sector Rf Devices. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 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
NSN5961-00-489-6863
Primary Part Number577R721H11
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerTrw Electronics and Defense Sector Rf Devices
StatusCANCELLED
MaterialSILICON SEMICONDUCTOR
MaterialGLASS ENCLOSURE
Test Data Document81349-MIL-S-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.).
Mounting MethodTERMINAL
Features ProvidedHERMETICALLY SEALED CASE
Current Rating Per Characteristic10.00 MICROAMPERES MAXIMUM REVERSE CURRENT, DC
Voltage Rating in Volts Per Characteristic70.0 MAXIMUM WORKING PEAK REVERSE VOLTAGE, MAXIMUM PEAK TOTAL VALUE
Power Rating Per Characteristic400.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
Overall Diameter0.085 INCHES MINIMUM AND 0.107 INCHES MAXIMUM IN
Terminal Length1.000 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
Maximum Operating Temp Per Measurement Point175.0 CELSIUS AMBIENT AIR DEGC
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
Specification/standard Data81349-MIL-S-19500/383 GOVERNMENT SPECIFICATION
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5961-00-024-8225 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-257-1688 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-275-7526 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-324-3081 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-387-3536 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-416-4849 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-420-0272 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-434-0160 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-503-8992 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-759-8419 INTERCHANGEABLE
Semiconductor Device,diode
Cross-Reference Index
Part NumberManufacturer
577R721H11 Trw Electronics and Defense Sector Rf Devices (USA)
577R721H11 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
MILS19500-383 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
TX1N5144A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JANTX1N5144A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-19500/383 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
SMV386-11 Freescale Semiconductor, Inc. (USA)
Related Parts
5961-00-024-8225INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-257-1688INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-275-7526INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-324-3081INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-387-3536INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-416-4849INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-420-0272INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-434-0160INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-503-8992INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-759-8419INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-763-7493INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-011-9101INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE

Frequently Asked Questions

What is NSN 5961-00-489-6863?

NSN 5961-00-489-6863 is a Semiconductor Device,diode, manufactured by Trw Electronics and Defense Sector Rf Devices, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-489-6863?

NSN 5961-00-489-6863 has 7 cross-referenced part numbers: 577R721H11 (Trw Electronics and Defense Sector Rf Devices), 577R721H11 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), MILS19500-383 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), TX1N5144A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), JANTX1N5144A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 2 more.

What NSN replaces 5961-00-489-6863?

There are 12 known substitutes for 5961-00-489-6863: 5961-00-024-8225, 5961-00-257-1688, 5961-00-275-7526 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 577R721H11?

Key specifications for 577R721H11: Material: SILICON SEMICONDUCTOR; Material: GLASS ENCLOSURE; Test Data Document: 81349-MIL-S-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.).; Mounting Method: TERMINAL. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-489-6863 still in active supply?

NSN 5961-00-489-6863 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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