PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21812Transistor

Smiths Aerospace, Inc., Electronic Systems-Grand Rapids · NSN 5961-01-169-6504 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-169-6504 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-169-6504. Primary manufacturer part number: 21812.
Features
  • Transistor — FSC 5961
  • Terminal Type and Quantity: 3 PIN
  • Special Test Features: TESTED PER BASE TEN SYSTEMS DWG 21812
  • Voltage Rating in Volts Per Characteristic: 80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN
  • Internal Configuration: JUNCTION CONTACT
  • Mounting Method: UNTHREADED HOLE(S)
  • Power Rating Per Characteristic: 2.2 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
  • Maximum Operating Temp Per Measurement Point: 150.0 CELSIUS JUNCTION DEGC
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-169-6504, 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 Smiths Aerospace, Inc., Electronic Systems-Grand Rapids. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-169-6504
Primary Part Number21812
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerSmiths Aerospace, Inc., Electronic Systems-Grand Rapids
StatusACTIVE
Terminal Type and Quantity3 PIN
Special Test FeaturesTESTED PER BASE TEN SYSTEMS DWG 21812
Voltage Rating in Volts Per Characteristic80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN
Internal ConfigurationJUNCTION CONTACT
Mounting MethodUNTHREADED HOLE(S)
Power Rating Per Characteristic2.2 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
Maximum Operating Temp Per Measurement Point150.0 CELSIUS JUNCTION DEGC
Current Rating Per Characteristic120.00 MILLIAMPERES MAXIMUM BASE CURRENT, DC
Mounting Facility Quantity1
Semiconductor MaterialSILICON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5930-00-140-418621812 INTERCHANGEABLE
Switch,liquid Level
Setra Systems, Inc. Dba Gems Sensors
2530-00-339-5130 INTERCHANGEABLE
Brake Lining Kit
5360-00-506-9509 INTERCHANGEABLE
Spring,helical,compression
5360-00-623-542121812 INTERCHANGEABLE
Spring
Mason Electric Co. Dba Mason Controls
5961-01-050-7042 INTERCHANGEABLE
Transistor
5305-01-356-720821812 INTERCHANGEABLE
Screw,cap,hexagon Head
Boart Canada Inc
6550-01-371-4633221812 INTERCHANGEABLE
Culture Medium,brain Heart Infus
Becton, Dickinson and Company Dba Becton Dickinson & Co
5990-01-423-818921812 INTERCHANGEABLE
Synchro,receiver
Elbitamerica, Inc.
6630-01-592-25906805344 INTERCHANGEABLE
Lamp,hematology Analyzer
Beckman Coulter Inc Div Us Customer Operations
1630-01-685-94282-1812 INTERCHANGEABLE
Brake,multiple Disk
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
Cross-Reference Index
Part NumberManufacturer
21812 Smiths Aerospace, Inc., Electronic Systems-Grand Rapids (USA)
2N6044 Freescale Semiconductor, Inc. (USA)
Related Parts
5930-00-140-4186INTERCHANGEABLE
SWITCH,LIQUID LEVEL
21812
2530-00-339-5130INTERCHANGEABLE
BRAKE LINING KIT
5360-00-506-9509INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5360-00-623-5421INTERCHANGEABLE
SPRING
21812
5961-01-050-7042INTERCHANGEABLE
TRANSISTOR
5305-01-356-7208INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
21812
6550-01-371-4633INTERCHANGEABLE
CULTURE MEDIUM,BRAIN HEART INFUS
221812
5990-01-423-8189INTERCHANGEABLE
SYNCHRO,RECEIVER
21812
6630-01-592-2590INTERCHANGEABLE
LAMP,HEMATOLOGY ANALYZER
6805344
1630-01-685-9428INTERCHANGEABLE
BRAKE,MULTIPLE DISK
2-1812

Frequently Asked Questions

What is NSN 5961-01-169-6504?

NSN 5961-01-169-6504 is a Transistor, manufactured by Smiths Aerospace, Inc., Electronic Systems-Grand Rapids, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-169-6504?

NSN 5961-01-169-6504 has 2 cross-referenced part numbers: 21812 (Smiths Aerospace, Inc., Electronic Systems-Grand Rapids), 2N6044 (Freescale Semiconductor, Inc.).

What NSN replaces 5961-01-169-6504?

There are 10 known substitutes for 5961-01-169-6504: 5930-00-140-4186, 2530-00-339-5130, 5360-00-506-9509 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21812?

Key specifications for 21812: Terminal Type and Quantity: 3 PIN; Special Test Features: TESTED PER BASE TEN SYSTEMS DWG 21812; Overall Length: 0.643 INCHES MAXIMUM IN; Voltage Rating in Volts Per Characteristic: 80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN. 14 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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