PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K2127Transistor

Cobham Advanced Electronic Solutions Inc. · NSN 5961-00-103-6748 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-103-6748 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-103-6748. Primary manufacturer part number: K2127.
Features
  • Transistor — FSC 5961
  • Internal Configuration: JUNCTION CONTACTJUNCTION CONTACT
  • Overall Diameter: 0.230 INCHES MAXIMUM0.230 INCHES MAXIMUM IN
  • Terminal Circle Diameter: 0.100 INCHES NOMINAL0.100 INCHES NOMINAL IN
  • Terminal Length: 0.500 INCHES MINIMUM0.500 INCHES MINIMUM IN
  • Power Rating Per Characteristic: 0.2 WATTS MAXIMUM COLLECTOR POWER DISSIPATION0.2 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
  • Features Provided: HERMETICALLY SEALED CASEHERMETICALLY SEALED CASE
  • Mounting Method: TERMINALTERMINAL
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-103-6748, 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 Cobham Advanced Electronic Solutions Inc.. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-103-6748
Primary Part NumberK2127
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerCobham Advanced Electronic Solutions Inc.
StatusCANCELLED
Internal ConfigurationJUNCTION CONTACTJUNCTION CONTACT
Overall Diameter0.230 INCHES MAXIMUM0.230 INCHES MAXIMUM IN
Terminal Circle Diameter0.100 INCHES NOMINAL0.100 INCHES NOMINAL IN
Terminal Length0.500 INCHES MINIMUM0.500 INCHES MINIMUM IN
Power Rating Per Characteristic0.2 WATTS MAXIMUM COLLECTOR POWER DISSIPATION0.2 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
Features ProvidedHERMETICALLY SEALED CASEHERMETICALLY SEALED CASE
Mounting MethodTERMINALTERMINAL
Voltage Rating in Volts Per Characteristic30.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 30.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 12.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 12.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 2.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN2.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Terminal Type and Quantity4 UNINSULATED WIRE LEAD4 UNINSULATED WIRE LEAD
Semiconductor MaterialSILICONSILICON
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION200.0 CELSIUS JUNCTION DEGC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
2910-00-076-9776K2127 INTERCHANGEABLE
Parts Kit,carburetor
Zenith Fuel Systems Llc
4730-00-278-543210 010114B(B1) INTERCHANGEABLE
Seal Bonnet,tube
Sae International Dba Sae International
5930-00-644-7746A-485 INTERCHANGEABLE
Switch,rotary
Jetronic Industries, Inc. Dba Jetronic Industries, Inc. Div Contracts
5961-01-093-8344BFY90 INTERCHANGEABLE
Transistor
Thales Components Corp Div Thales Components Corporation
5961-01-229-398510106132-101 INTERCHANGEABLE
Transistor
Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis
5940-01-436-2334A485 INTERCHANGEABLE
Terminal,lug
Abb Installation Products Inc
Cross-Reference Index
Part NumberManufacturer
K2127 Cobham Advanced Electronic Solutions Inc. (USA)
A485 Amperex Electronic Corp (USA)
SRF518 Freescale Semiconductor, Inc. (USA)
8210-1194 Iet Labs Inc (USA)
A485 Philips Circuit Assemblies (USA)
BFY90 Central Semiconductor, Llc Dba Central Semiconductor Corp (USA)
151-0212-00 Tektronix, Inc. (USA)
8210-1194 Genrad Inc (USA)
K2127 Semic Rf Electronic Gmbh (DEU)
A43384-1 Dar Electronics Inc Dba National Radio Co (USA)
Related Parts
2910-00-076-9776INTERCHANGEABLE
PARTS KIT,CARBURETOR
K2127
4730-00-278-5432INTERCHANGEABLE
SEAL BONNET,TUBE
10 010114B(B1)
5930-00-644-7746INTERCHANGEABLE
SWITCH,ROTARY
A-485
5961-01-093-8344INTERCHANGEABLE
TRANSISTOR
BFY90
5961-01-229-3985INTERCHANGEABLE
TRANSISTOR
10106132-101
5940-01-436-2334INTERCHANGEABLE
TERMINAL,LUG
A485

Frequently Asked Questions

What is NSN 5961-00-103-6748?

NSN 5961-00-103-6748 is a Transistor, manufactured by Cobham Advanced Electronic Solutions Inc., classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-103-6748?

NSN 5961-00-103-6748 has 10 cross-referenced part numbers: K2127 (Cobham Advanced Electronic Solutions Inc.), A485 (Amperex Electronic Corp), SRF518 (Freescale Semiconductor, Inc.), 8210-1194 (Iet Labs Inc), A485 (Philips Circuit Assemblies) and 5 more.

What NSN replaces 5961-00-103-6748?

There are 6 known substitutes for 5961-00-103-6748: 2910-00-076-9776, 4730-00-278-5432, 5930-00-644-7746 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of K2127?

Key specifications for K2127: Internal Configuration: JUNCTION CONTACTJUNCTION CONTACT; Overall Diameter: 0.230 INCHES MAXIMUM0.230 INCHES MAXIMUM IN; Terminal Circle Diameter: 0.100 INCHES NOMINAL0.100 INCHES NOMINAL IN; Terminal Length: 0.500 INCHES MINIMUM0.500 INCHES MINIMUM IN. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-103-6748 still in active supply?

NSN 5961-00-103-6748 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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