PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

209285-008Transistor

Tdk-Lambda Americas Inc. Div High Power Division · NSN 5961-01-181-3052 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-181-3052 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-181-3052. Primary manufacturer part number: 209285-008.
Features
  • Transistor — FSC 5961
  • Voltage Rating in Volts Per Characteristic: 50.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 40.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
  • Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-3
  • Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC
  • Internal Junction Configuration: NPN
  • Transfer Ratio: 15.0 MINIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER AND 60.0 MAXIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
  • Terminal Type and Quantity: 2 UNTHREADED HOLE AND 1 CASE
  • Internal Configuration: JUNCTION CONTACT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-181-3052, 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 Tdk-Lambda Americas Inc. Div High Power Division. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 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
NSN5961-01-181-3052
Primary Part Number209285-008
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerTdk-Lambda Americas Inc. Div High Power Division
StatusACTIVE
Voltage Rating in Volts Per Characteristic50.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 40.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-3
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Internal Junction ConfigurationNPN
Transfer Ratio15.0 MINIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER AND 60.0 MAXIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
Terminal Type and Quantity2 UNTHREADED HOLE AND 1 CASE
Internal ConfigurationJUNCTION CONTACT
Features ProvidedHERMETICALLY SEALED CASE
Semiconductor MaterialSILICON
Mounting MethodUNTHREADED HOLE(S)
Mounting Facility Quantity2
Current Rating Per Characteristic8.00 AMPERES MAXIMUM COLLECTOR CURRENT, RMS VALUE OF ALTERNATION COMPONENT
Power Rating Per Characteristic117.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5315-00-089-4942 INTERCHANGEABLE
Pin,straight,headless
5940-00-211-5579 INTERCHANGEABLE
Terminal,stud
5995-00-212-194140251 INTERCHANGEABLE
Cable Assembly,radio Frequency
Alliant Techsystems Operations Llc Div Defense Electronic Systems
6105-00-229-0504 INTERCHANGEABLE
Motor,direct Current
5975-00-280-95214-0251 INTERCHANGEABLE
Nut,coupling,electrical Conduit
Breeze-Eastern Llc
4920-00-626-591640-251 INTERCHANGEABLE
Hytrol Test Unit
Hydro-Aire Aerospace Corp
5961-00-758-5816 INTERCHANGEABLE
Transistor
5342-00-838-8820 INTERCHANGEABLE
Shield
5330-00-862-9288SRCCA1445 INTERCHANGEABLE
Gasket
Stillman Seal Corporation Div Stillman Seal Corperation
5961-00-917-34784811-183012 INTERCHANGEABLE
Transistor
Fluke Corp
Cross-Reference Index
Part NumberManufacturer
209285-008 PRIMARY Tdk-Lambda Americas Inc. Div High Power Division (USA)
40251 Renesas Electronics America Inc (USA)
505257 Tdk-Lambda Americas Inc. Div High Power Division (USA)
Related Parts
5315-00-089-4942INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5940-00-211-5579INTERCHANGEABLE
TERMINAL,STUD
5995-00-212-1941INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
40251
6105-00-229-0504INTERCHANGEABLE
MOTOR,DIRECT CURRENT
5975-00-280-9521INTERCHANGEABLE
NUT,COUPLING,ELECTRICAL CONDUIT
4-0251
4920-00-626-5916INTERCHANGEABLE
HYTROL TEST UNIT
40-251
5961-00-758-5816INTERCHANGEABLE
TRANSISTOR
5342-00-838-8820INTERCHANGEABLE
SHIELD
5330-00-862-9288INTERCHANGEABLE
GASKET
SRCCA1445
5961-00-917-3478INTERCHANGEABLE
TRANSISTOR
4811-183012
5961-00-931-8237INTERCHANGEABLE
TRANSISTOR
40251
6350-00-932-7962INTERCHANGEABLE
DATUM BOX ASSY
613905-1

Frequently Asked Questions

What is NSN 5961-01-181-3052?

NSN 5961-01-181-3052 is a Transistor, manufactured by Tdk-Lambda Americas Inc. Div High Power Division, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-181-3052?

NSN 5961-01-181-3052 has 3 cross-referenced part numbers: 209285-008 (Tdk-Lambda Americas Inc. Div High Power Division), 40251 (Renesas Electronics America Inc), 505257 (Tdk-Lambda Americas Inc. Div High Power Division).

What NSN replaces 5961-01-181-3052?

There are 12 known substitutes for 5961-01-181-3052: 5315-00-089-4942, 5940-00-211-5579, 5995-00-212-1941 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 209285-008?

Key specifications for 209285-008: Voltage Rating in Volts Per Characteristic: 50.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 40.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN; Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-3; Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC; Internal Junction Configuration: NPN. 16 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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