PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

523647Transistor

Fluke Corp · NSN 5961-01-148-3991 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-148-3991 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-148-3991. Primary manufacturer part number: 523647.
Features
  • Transistor — FSC 5961
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
  • Current Rating Per Characteristic: 500.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Power Rating Per Characteristic: 1.5 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
  • Internal Configuration: JUNCTION CONTACT
  • Voltage Rating in Volts Per Characteristic: 25.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 25.0 MAXIMUM COLLECTOR TO BASE VOLTAGE, DC AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, DC
  • Terminal Length: 0.500 INCHES MINIMUM IN
  • Mounting Method: TERMINAL
Applications
  • Applications requiring Plastic Enclosure construction
General Description

The Transistor, cataloged under National Stock Number 5961-01-148-3991, 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 Fluke Corp. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-01-148-3991
Primary Part Number523647
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerFluke Corp
StatusCANCELLED
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Current Rating Per Characteristic500.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Power Rating Per Characteristic1.5 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
Internal ConfigurationJUNCTION CONTACT
Voltage Rating in Volts Per Characteristic25.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 25.0 MAXIMUM COLLECTOR TO BASE VOLTAGE, DC AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, DC
Terminal Length0.500 INCHES MINIMUM IN
Mounting MethodTERMINAL
MaterialPLASTIC ENCLOSURE
Terminal Circle Diameter0.105 INCHES MAXIMUM IN
Semiconductor MaterialSILICON
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-92
Maximum Operating Temp Per Measurement Point150.0 CELSIUS JUNCTION DEGC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
3110-00-409-300569407 INTERCHANGEABLE
Bearing,roller,cylindrical
Parker Hannifin Corporation Div Hydraulic Systems Division
Cross-Reference Index
Part NumberManufacturer
523647 PRIMARY Fluke Corp (USA)
FMPS6562EBC Fairchild Semiconductor Corp (USA)
MPS6651 Freescale Semiconductor, Inc. (USA)
MPS6651 On Semiconductor Corporation (USA)
Related Parts
3110-00-409-3005INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
69407

Frequently Asked Questions

What is NSN 5961-01-148-3991?

NSN 5961-01-148-3991 is a Transistor, manufactured by Fluke Corp, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-01-148-3991?

NSN 5961-01-148-3991 has 4 cross-referenced part numbers: 523647 (Fluke Corp), FMPS6562EBC (Fairchild Semiconductor Corp), MPS6651 (Freescale Semiconductor, Inc.), MPS6651 (On Semiconductor Corporation).

What NSN replaces 5961-01-148-3991?

There is 1 known substitute for 5961-01-148-3991: 3110-00-409-3005. Verify interchangeability with system specifications before substitution.

What are the specifications of 523647?

Key specifications for 523647: Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD; Current Rating Per Characteristic: 500.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC; Special Features: JUNCTION PATTERN ARRANGEMENT: PNP; Power Rating Per Characteristic: 1.5 WATTS MAXIMUM TOTAL DEVICE DISSIPATION. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-01-148-3991 still in active supply?

NSN 5961-01-148-3991 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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