PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILS19500-255Transistor

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5961-00-226-8583 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-226-8583 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-226-8583. Primary manufacturer part number: MILS19500-255.
Features
  • Transistor — FSC 5961
  • Semiconductor Material: SILICON
  • Mounting Method: TERMINAL
  • Power Rating Per Characteristic: 500.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
  • Internal Configuration: JUNCTION CONTACT
  • Specification/standard Data: 81349-MIL-S-19500/255 GOVERNMENT SPECIFICATION
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
  • Current Rating Per Characteristic: 800.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-226-8583, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-226-8583
Primary Part NumberMILS19500-255
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Semiconductor MaterialSILICON
Mounting MethodTERMINAL
Power Rating Per Characteristic500.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
Internal ConfigurationJUNCTION CONTACT
Specification/standard Data81349-MIL-S-19500/255 GOVERNMENT SPECIFICATION
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Current Rating Per Characteristic800.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Overall Diameter0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
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.).
Features ProvidedHERMETICALLY SEALED CASE
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Voltage Rating in Volts Per Characteristic60.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 30.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Internal Junction ConfigurationNPN
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Terminal Length0.500 INCHES MINIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5961-00-226-8584 INTERCHANGEABLE
Transistor
5961-00-261-7066SMB653437-1 INTERCHANGEABLE
Transistor
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5961-00-261-7067SMB653437-2 INTERCHANGEABLE
Transistor
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5961-00-828-2559 INTERCHANGEABLE
Transistor
5961-00-944-9810 INTERCHANGEABLE
Transistor
5961-00-951-8756 INTERCHANGEABLE
Transistor
5961-00-996-1894 INTERCHANGEABLE
Transistor
5961-01-310-9718 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
MILS19500-255 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4192800-130 Raytheon Company Div Rmd Strategic (USA)
JAN2N2221 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
352-7500-060 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
JAN2N2221A Adelco Elektronik Gmbh (DEU)
2N2221 Freescale Semiconductor, Inc. (USA)
2N2221 Fairchild Semiconductor Corp (USA)
1854-0032 Hewlett-Packard Company Dba HP (USA)
Related Parts
5961-00-226-8584INTERCHANGEABLE
TRANSISTOR
5961-00-261-7066INTERCHANGEABLE
TRANSISTOR
SMB653437-1
5961-00-261-7067INTERCHANGEABLE
TRANSISTOR
SMB653437-2
5961-00-828-2559INTERCHANGEABLE
TRANSISTOR
5961-00-944-9810INTERCHANGEABLE
TRANSISTOR
5961-00-951-8756INTERCHANGEABLE
TRANSISTOR
5961-00-996-1894INTERCHANGEABLE
TRANSISTOR
5961-01-310-9718INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-00-226-8583?

NSN 5961-00-226-8583 is a Transistor, 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: cancelled.

What are the part numbers for NSN 5961-00-226-8583?

NSN 5961-00-226-8583 has 8 cross-referenced part numbers: MILS19500-255 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 4192800-130 (Raytheon Company Div Rmd Strategic), JAN2N2221 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 352-7500-060 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), JAN2N2221A (Adelco Elektronik Gmbh) and 3 more.

What NSN replaces 5961-00-226-8583?

There are 8 known substitutes for 5961-00-226-8583: 5961-00-226-8584, 5961-00-261-7066, 5961-00-261-7067 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILS19500-255?

Key specifications for MILS19500-255: Semiconductor Material: SILICON; Mounting Method: TERMINAL; Power Rating Per Characteristic: 500.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION; Internal Configuration: JUNCTION CONTACT. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-226-8583 still in active supply?

NSN 5961-00-226-8583 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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