PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

618-4921-002Transistor

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5961-01-171-9237 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-171-9237 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-171-9237. Primary manufacturer part number: 618-4921-002.
Features
  • Transistor — FSC 5961
  • Overall Diameter: 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
  • Voltage Rating in Volts Per Characteristic: -60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN
  • Terminal Circle Diameter: 0.100 INCHES NOMINAL IN
  • Terminal Length: 1.500 INCHES NOMINAL IN
  • Power Rating Per Characteristic: 600.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
  • Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS JUNCTION DEGC
  • Features Provided: HERMETICALLY SEALED CASE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-171-9237, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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: Active.

Technical Specifications
ParameterValue
NSN5961-01-171-9237
Primary Part Number618-4921-002
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
StatusACTIVE
Overall Diameter0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
Voltage Rating in Volts Per Characteristic-60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Terminal Length1.500 INCHES NOMINAL IN
Power Rating Per Characteristic600.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
Maximum Operating Temp Per Measurement Point175.0 CELSIUS JUNCTION DEGC
Features ProvidedHERMETICALLY SEALED CASE
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-18
Current Rating Per Characteristic-600.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Mounting MethodTERMINAL
Semiconductor MaterialSILICON
Internal ConfigurationJUNCTION CONTACT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5961-00-099-4428N185916-3 INTERCHANGEABLE
Transistor
Safran Electrical & Power Uk Limited
5961-00-468-5262N185916-4 INTERCHANGEABLE
Transistor
Safran Electrical & Power Uk Limited
5961-00-477-73642N2907A INTERCHANGEABLE
Transistor
Fairchild Semiconductor Corp
5961-00-719-42742459391-2 INTERCHANGEABLE
Transistor
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5961-00-726-95982504608-2 INTERCHANGEABLE
Transistor
Honeywell International Inc. Dba Honeywell International
5961-00-904-4262 INTERCHANGEABLE
Transistor
5961-00-925-3777 INTERCHANGEABLE
Transistor
5961-00-985-91102N2907A INTERCHANGEABLE
Transistor
Freescale Semiconductor, Inc.
5961-01-019-4947 INTERCHANGEABLE
Transistor
5961-01-042-3341618-4921-058 INTERCHANGEABLE
Transistor
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
Cross-Reference Index
Part NumberManufacturer
618-4921-002 Freescale Semiconductor, Inc. (USA)
352-0551-011 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
2N2907A Electronic Industries Association
2N2907A Texas Instruments Incorporated (USA)
2N2907A Freescale Semiconductor, Inc. (USA)
618-4921-002 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
5961-00-099-4428INTERCHANGEABLE
TRANSISTOR
N185916-3
5961-00-468-5262INTERCHANGEABLE
TRANSISTOR
N185916-4
5961-00-477-7364INTERCHANGEABLE
TRANSISTOR
2N2907A
5961-00-719-4274INTERCHANGEABLE
TRANSISTOR
2459391-2
5961-00-726-9598INTERCHANGEABLE
TRANSISTOR
2504608-2
5961-00-904-4262INTERCHANGEABLE
TRANSISTOR
5961-00-925-3777INTERCHANGEABLE
TRANSISTOR
5961-00-985-9110INTERCHANGEABLE
TRANSISTOR
2N2907A
5961-01-019-4947INTERCHANGEABLE
TRANSISTOR
5961-01-042-3341INTERCHANGEABLE
TRANSISTOR
618-4921-058
5961-01-102-7461INTERCHANGEABLE
TRANSISTOR
648-5338-002
5961-01-189-2489INTERCHANGEABLE
TRANSISTOR
2N2907A

Frequently Asked Questions

What is NSN 5961-01-171-9237?

NSN 5961-01-171-9237 is a Transistor, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-171-9237?

NSN 5961-01-171-9237 has 6 cross-referenced part numbers: 618-4921-002 (Freescale Semiconductor, Inc.), 352-0551-011 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 2N2907A (Electronic Industries Association), 2N2907A (Texas Instruments Incorporated), 2N2907A (Freescale Semiconductor, Inc.) and 1 more.

What NSN replaces 5961-01-171-9237?

There are 12 known substitutes for 5961-01-171-9237: 5961-00-099-4428, 5961-00-468-5262, 5961-00-477-7364 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 618-4921-002?

Key specifications for 618-4921-002: Overall Diameter: 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN; Special Features: JUNCTION PATTERN ARRANGEMENT: PNP; Voltage Rating in Volts Per Characteristic: -60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN; Terminal Circle Diameter: 0.100 INCHES NOMINAL IN. 15 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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