PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N5078Transistor

Telcom Semiconductor Inc · NSN 5961-00-404-5537 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-404-5537 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-404-5537. Primary manufacturer part number: 2N5078.
Features
  • Transistor — FSC 5961
  • Terminal Length: 0.500 INCHES MINIMUM IN
  • Current Rating Per Characteristic: 100.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Mounting Method: TERMINAL
  • Voltage Rating in Volts Per Characteristic: 50.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 3.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
  • Power Rating Per Characteristic: 350.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
  • Semiconductor Material: SILICON
  • Internal Configuration: JUNCTION CONTACT
Applications
  • Applications requiring Plastic Enclosure construction
General Description

The Transistor, cataloged under National Stock Number 5961-00-404-5537, 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 Telcom Semiconductor Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 21 commercial cross-references from 17 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-404-5537
Primary Part Number2N5078
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerTelcom Semiconductor Inc
StatusCANCELLED
Terminal Length0.500 INCHES MINIMUM IN
Current Rating Per Characteristic100.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Mounting MethodTERMINAL
Voltage Rating in Volts Per Characteristic50.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 3.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Power Rating Per Characteristic350.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
Semiconductor MaterialSILICON
Internal ConfigurationJUNCTION CONTACT
Maximum Operating Temp Per Measurement Point165.0 CELSIUS JUNCTION DEGC
Specification/standard Data80131-RELEASE5539 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
MaterialPLASTIC ENCLOSURE
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5950-00-103-5123 INTERCHANGEABLE
Coil,electrical
5961-00-224-5601 INTERCHANGEABLE
Transistor
5961-00-434-9313 INTERCHANGEABLE
Transistor
5961-00-493-0813 INTERCHANGEABLE
Transistor
3455-00-596-516150-10515 4533-6 INTERCHANGEABLE
Reamer,machine
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5961-00-728-5363 INTERCHANGEABLE
Transistor
5961-01-012-9313343103 INTERCHANGEABLE
Transistor
Fluke Corp
5360-01-102-177804100255 INTERCHANGEABLE
Spring
C-Way Industries Inc
5961-01-313-7187151-0276-01 INTERCHANGEABLE
Transistor
Tektronix, Inc.
Cross-Reference Index
Part NumberManufacturer
2N5078 Telcom Semiconductor Inc (USA)
2N5087 Freescale Semiconductor, Inc. (USA)
2N5087A Adelco Elektronik Gmbh (DEU)
2N5087 Tektronix, Inc. (USA)
151-0276-00 Tektronix, Inc. (USA)
663-00337 Datron the Instruments Inc (USA)
859971 L3 Aviation Products, Inc. Dba L3 Technologies (USA)
2N5087 Rca Corp Distribution and Special Products (USA)
3-30204 Ametek Programmable Power, Inc. (USA)
2N5087 Adelco Elektronik Gmbh (DEU)
10629900-00 Henley Marine, Inc (USA)
2N50087/D75Z Fairchild Semiconductor Corp (USA)
JAN2N5087 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3-30204 California Instruments Corp (USA)
2N5087 Newark Electronics Corporation Dba Newark (USA)
2N5087 Fairchild Semiconductor Corp (USA)
400 00021 02 Rycom Instruments, Inc. (USA)
2N5087 Motorola Inc Control Systems Div (USA)
2N5087 Electronic Industries Association
RELEASE5539 Electronic Industries Association
Related Parts
5950-00-103-5123INTERCHANGEABLE
COIL,ELECTRICAL
5961-00-224-5601INTERCHANGEABLE
TRANSISTOR
5961-00-434-9313INTERCHANGEABLE
TRANSISTOR
5961-00-493-0813INTERCHANGEABLE
TRANSISTOR
3455-00-596-5161INTERCHANGEABLE
REAMER,MACHINE
50-10515 4533-6
5961-00-728-5363INTERCHANGEABLE
TRANSISTOR
5961-01-012-9313INTERCHANGEABLE
TRANSISTOR
343103
5360-01-102-1778INTERCHANGEABLE
SPRING
04100255
5961-01-313-7187INTERCHANGEABLE
TRANSISTOR
151-0276-01

Frequently Asked Questions

What is NSN 5961-00-404-5537?

NSN 5961-00-404-5537 is a Transistor, manufactured by Telcom Semiconductor Inc, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-404-5537?

NSN 5961-00-404-5537 has 21 cross-referenced part numbers: 2N5078 (Telcom Semiconductor Inc), 2N5087 (Freescale Semiconductor, Inc.), 2N5087A (Adelco Elektronik Gmbh), 2N5087 (Tektronix, Inc.), 151-0276-00 (Tektronix, Inc.) and 16 more.

What NSN replaces 5961-00-404-5537?

There are 9 known substitutes for 5961-00-404-5537: 5950-00-103-5123, 5961-00-224-5601, 5961-00-434-9313 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N5078?

Key specifications for 2N5078: Overall Width: 0.175 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN; Terminal Length: 0.500 INCHES MINIMUM IN; Current Rating Per Characteristic: 100.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC; Special Features: JUNCTION PATTERN ARRANGEMENT: PNP. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-404-5537 still in active supply?

NSN 5961-00-404-5537 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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