PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N2878Transistor

Solitron Devices, Inc. · NSN 5961-00-105-1967 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-105-1967 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-105-1967. Primary manufacturer part number: 2N2878.
Features
  • Transistor — FSC 5961
  • Features Provided: HERMETICALLY SEALED CASEHERMETICALLY SEALED CASE
  • Current Rating Per Characteristic: 4.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC AND 4.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC AND 4.00 AMPERES MAXIMUM BASE CURRENT, DC4.00 AMPERES MAXIMUM BASE CURRENT, DC
  • Electrode Internally-Electrically Connected to Case: COLLECTORCOLLECTOR
  • Voltage Rating in Volts Per Characteristic: 120.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 120.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 50.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 50.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 7.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN7.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
  • Semiconductor Material: SILICONSILICON
  • Overall Diameter: 0.620 INCHES MAXIMUM0.620 INCHES MAXIMUM IN
  • Power Rating Per Characteristic: 35.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION35.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-105-1967, 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 Solitron Devices, Inc.. Government technical data includes 13 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-105-1967
Primary Part Number2N2878
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerSolitron Devices, Inc.
StatusACTIVE
Features ProvidedHERMETICALLY SEALED CASEHERMETICALLY SEALED CASE
Current Rating Per Characteristic4.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC AND 4.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC AND 4.00 AMPERES MAXIMUM BASE CURRENT, DC4.00 AMPERES MAXIMUM BASE CURRENT, DC
Electrode Internally-Electrically Connected to CaseCOLLECTORCOLLECTOR
Voltage Rating in Volts Per Characteristic120.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 120.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 50.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 50.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 7.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN7.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Semiconductor MaterialSILICONSILICON
Overall Diameter0.620 INCHES MAXIMUM0.620 INCHES MAXIMUM IN
Power Rating Per Characteristic35.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION35.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
Internal Junction ConfigurationNPNNPN
Mounting Facility Quantity22
Internal ConfigurationJUNCTION CONTACTJUNCTION CONTACT
Mounting MethodUNTHREADED HOLE(S)
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION200.0 CELSIUS JUNCTION DEGC
Terminal Type and Quantity1 CASE AND 1 CASE AND 2 PIN2 PIN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5961-00-498-53012N3878 INTERCHANGEABLE
Transistor
Renesas Electronics America Inc
5961-00-946-7727 INTERCHANGEABLE
Transistor
5961-01-065-0017 INTERCHANGEABLE
Transistor
5961-01-069-5023900322-051 INTERCHANGEABLE
Transistor
Kaman Aerospace Corporation
5360-01-257-34222N2878 INTERCHANGEABLE
Spring,helical,compression
Caterpillar Inc Div Caterpillar Defense
Cross-Reference Index
Part NumberManufacturer
2N3878 Renesas Electronics America Inc (USA)
900322-001 Kaman Aerospace Corporation (USA)
VP2022 Hofley Mfg Co (USA)
A3215 Aeronautical Communications Equipment Inc (USA)
RELEASE5115 Electronic Industries Association
2N2878 PRIMARY Solitron Devices, Inc. (USA)
2N3878 Electronic Industries Association
2N3878 Rca Corp Distribution and Special Products (USA)
Related Parts
5961-00-498-5301INTERCHANGEABLE
TRANSISTOR
2N3878
5961-00-946-7727INTERCHANGEABLE
TRANSISTOR
5961-01-065-0017INTERCHANGEABLE
TRANSISTOR
5961-01-069-5023INTERCHANGEABLE
TRANSISTOR
900322-051
5360-01-257-3422INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
2N2878

Frequently Asked Questions

What is NSN 5961-00-105-1967?

NSN 5961-00-105-1967 is a Transistor, manufactured by Solitron Devices, Inc., classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-105-1967?

NSN 5961-00-105-1967 has 8 cross-referenced part numbers: 2N3878 (Renesas Electronics America Inc), 900322-001 (Kaman Aerospace Corporation), VP2022 (Hofley Mfg Co), A3215 (Aeronautical Communications Equipment Inc), RELEASE5115 (Electronic Industries Association) and 3 more.

What NSN replaces 5961-00-105-1967?

There are 5 known substitutes for 5961-00-105-1967: 5961-00-498-5301, 5961-00-946-7727, 5961-01-065-0017 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N2878?

Key specifications for 2N2878: Features Provided: HERMETICALLY SEALED CASEHERMETICALLY SEALED CASE; Current Rating Per Characteristic: 4.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC AND 4.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC AND 4.00 AMPERES MAXIMUM BASE CURRENT, DC4.00 AMPERES MAXIMUM BASE CURRENT, DC; Electrode Internally-Electrically Connected to Case: COLLECTORCOLLECTOR; Voltage Rating in Volts Per Characteristic: 120.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 120.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 50.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 50.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 7.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN7.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR 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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