PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40408LTransistor

Semiconductor Technology, Inc. Dba Semiconductor Technology Inc · NSN 5961-00-539-3200 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-539-3200 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-539-3200. Primary manufacturer part number: 40408L.
Features
  • Transistor — FSC 5961
  • Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC
  • Power Rating Per Characteristic: 1.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
  • Internal Configuration: JUNCTION CONTACT
  • Terminal Length: 1.500 INCHES MINIMUM IN
  • Terminal Circle Diameter: 0.200 INCHES NOMINAL IN
  • Voltage Rating in Volts Per Characteristic: 90.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 4.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-539-3200, 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 Semiconductor Technology, Inc. Dba Semiconductor Technology Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN5961-00-539-3200
Primary Part Number40408L
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerSemiconductor Technology, Inc. Dba Semiconductor Technology Inc
StatusACTIVE
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Power Rating Per Characteristic1.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
Internal ConfigurationJUNCTION CONTACT
Terminal Length1.500 INCHES MINIMUM IN
Terminal Circle Diameter0.200 INCHES NOMINAL IN
Voltage Rating in Volts Per Characteristic90.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 4.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Features ProvidedHERMETICALLY SEALED CASE
Semiconductor MaterialSILICON
Overall Diameter0.370 INCHES MAXIMUM IN
Current Rating Per Characteristic200.00 MILLIAMPERES MAXIMUM BASE CURRENT, DC AND 700.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Mounting MethodTERMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5895-00-138-211240408 INTERCHANGEABLE
Panel,indicator
Allianz Sweeper Company
5330-00-154-8864240-4111-1035565REVCPC47 INTERCHANGEABLE
Seal,plain Encased
Naval Ship Systems Command
5330-00-241-5272938435 INTERCHANGEABLE
Gasket
Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division
5330-00-285-83871B2729 INTERCHANGEABLE
Seal,plain Encased
Caterpillar Inc Div Caterpillar Defense
5999-00-443-797104-0302-0408 INTERCHANGEABLE
Shielding Gasket,electronic
Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division
5950-01-028-6694SM-B-542571 INTERCHANGEABLE
Transformer,audio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6680-01-104-429440408 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
5340-01-205-55714.0408 INTERCHANGEABLE
Clip,retaining
Morris Material Handling, Inc.
5995-01-503-875940408 INTERCHANGEABLE
Cable Assembly,radio Frequency
Flexco Microwave Inc
5120-01-604-49134040-8 INTERCHANGEABLE
Step Plate,mechanical Puller
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Cross-Reference Index
Part NumberManufacturer
40408L Boca Semiconductor Corporation (USA)
40408L Rca Corp Distribution and Special Products (USA)
40408 Rca Corp Distribution and Special Products (USA)
40408L PRIMARY Semiconductor Technology, Inc. Dba Semiconductor Technology Inc (USA)
Related Parts
5895-00-138-2112INTERCHANGEABLE
PANEL,INDICATOR
40408
5330-00-154-8864INTERCHANGEABLE
SEAL,PLAIN ENCASED
240-4111-1035565REVCPC47
5330-00-241-5272INTERCHANGEABLE
GASKET
938435
5330-00-285-8387INTERCHANGEABLE
SEAL,PLAIN ENCASED
1B2729
5999-00-443-7971INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
04-0302-0408
5950-01-028-6694INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
SM-B-542571
6680-01-104-4294INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
40408
5340-01-205-5571INTERCHANGEABLE
CLIP,RETAINING
4.0408
5995-01-503-8759INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
40408
5120-01-604-4913INTERCHANGEABLE
STEP PLATE,MECHANICAL PULLER
4040-8
5995-01-646-9839INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
40408
1650-01-664-8938INTERCHANGEABLE
FILTER ELEMENT,FLUID
40408

Frequently Asked Questions

What is NSN 5961-00-539-3200?

NSN 5961-00-539-3200 is a Transistor, manufactured by Semiconductor Technology, Inc. Dba Semiconductor Technology Inc, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-539-3200?

NSN 5961-00-539-3200 has 4 cross-referenced part numbers: 40408L (Boca Semiconductor Corporation), 40408L (Rca Corp Distribution and Special Products), 40408 (Rca Corp Distribution and Special Products), 40408L (Semiconductor Technology, Inc. Dba Semiconductor Technology Inc).

What NSN replaces 5961-00-539-3200?

There are 12 known substitutes for 5961-00-539-3200: 5895-00-138-2112, 5330-00-154-8864, 5330-00-241-5272 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40408L?

Key specifications for 40408L: Overall Length: 0.260 INCHES MAXIMUM IN; Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC; Power Rating Per Characteristic: 1.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION; Special Features: JUNCTION PATTERN ARRANGEMENT: NPN. 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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