PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N3866Transistor

Rca Corp Distribution and Special Products · NSN 5961-00-485-8781 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-485-8781 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-485-8781. Primary manufacturer part number: 2N3866.
Features
  • Transistor — FSC 5961
  • Transfer Ratio: 200.0 MAXIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
  • Terminal Circle Diameter: 0.210 INCHES MAXIMUM IN
  • Electrode Internally-Electrically Connected to Case: COLLECTOR
  • Current Rating Per Characteristic: 0.40 AMPERES MAXIMUM COLLECTOR CURRENT, DC AND 0.40 AMPERES MAXIMUM BASE CURRENT, DC
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
  • Power Rating Per Characteristic: 5.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
  • 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 5961-00-485-8781, 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 Rca Corp Distribution and Special Products. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN5961-00-485-8781
Primary Part Number2N3866
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerRca Corp Distribution and Special Products
StatusACTIVE
Transfer Ratio200.0 MAXIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
Terminal Circle Diameter0.210 INCHES MAXIMUM IN
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Current Rating Per Characteristic0.40 AMPERES MAXIMUM COLLECTOR CURRENT, DC AND 0.40 AMPERES MAXIMUM BASE CURRENT, DC
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Power Rating Per Characteristic5.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
Features ProvidedHERMETICALLY SEALED CASE
Voltage Rating in Volts Per Characteristic300.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 7.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN AND 300.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN
Mounting MethodTERMINAL
Overall Diameter0.370 INCHES MAXIMUM IN
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Terminal Length0.500 INCHES MINIMUM IN
Semiconductor MaterialSILICON
Internal Junction ConfigurationNPN
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-39
Internal ConfigurationJUNCTION CONTACT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5961-00-062-2075 INTERCHANGEABLE
Transistor
5961-00-096-1926536157-1 INTERCHANGEABLE
Transistor
Raytheon Company Dba Raytheon
5961-00-168-8389958-033-0003 INTERCHANGEABLE
Semiconductor Device Set
Northrop Grumman Systems Corporation
5961-00-450-1124SM-A-696868-5 INTERCHANGEABLE
Transistor
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5961-00-469-9896352-0671-011 INTERCHANGEABLE
Transistor
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5961-00-486-61812N3866 INTERCHANGEABLE
Transistor
L3 Technologies, Inc. Div L3 Telemetry & Rf Products
5961-00-548-1894151-0446-00 INTERCHANGEABLE
Transistor
Tektronix, Inc.
5961-00-759-8867 INTERCHANGEABLE
Transistor
5961-00-896-6014 INTERCHANGEABLE
Transistor
5961-00-931-7028 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
2N3866 Rca Corp Distribution and Special Products (USA)
532443-1 Raytheon Company Dba Raytheon (USA)
5800583-942000.122 Hensoldt Sensors Gmbh (DEU)
Related Parts
5961-00-062-2075INTERCHANGEABLE
TRANSISTOR
5961-00-096-1926INTERCHANGEABLE
TRANSISTOR
536157-1
5961-00-168-8389INTERCHANGEABLE
SEMICONDUCTOR DEVICE SET
958-033-0003
5961-00-450-1124INTERCHANGEABLE
TRANSISTOR
SM-A-696868-5
5961-00-469-9896INTERCHANGEABLE
TRANSISTOR
352-0671-011
5961-00-486-6181INTERCHANGEABLE
TRANSISTOR
2N3866
5961-00-548-1894INTERCHANGEABLE
TRANSISTOR
151-0446-00
5961-00-759-8867INTERCHANGEABLE
TRANSISTOR
5961-00-896-6014INTERCHANGEABLE
TRANSISTOR
5961-00-931-7028INTERCHANGEABLE
TRANSISTOR
5961-00-954-4864INTERCHANGEABLE
TRANSISTOR
5961-01-023-5131INTERCHANGEABLE
TRANSISTOR
352-0671-040

Frequently Asked Questions

What is NSN 5961-00-485-8781?

NSN 5961-00-485-8781 is a Transistor, manufactured by Rca Corp Distribution and Special Products, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-485-8781?

NSN 5961-00-485-8781 has 3 cross-referenced part numbers: 2N3866 (Rca Corp Distribution and Special Products), 532443-1 (Raytheon Company Dba Raytheon), 5800583-942000.122 (Hensoldt Sensors Gmbh).

What NSN replaces 5961-00-485-8781?

There are 12 known substitutes for 5961-00-485-8781: 5961-00-062-2075, 5961-00-096-1926, 5961-00-168-8389 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N3866?

Key specifications for 2N3866: Transfer Ratio: 200.0 MAXIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER; Terminal Circle Diameter: 0.210 INCHES MAXIMUM IN; Electrode Internally-Electrically Connected to Case: COLLECTOR; Current Rating Per Characteristic: 0.40 AMPERES MAXIMUM COLLECTOR CURRENT, DC AND 0.40 AMPERES MAXIMUM BASE CURRENT, DC. 17 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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