PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

407257-1-ATransistor

Aimtron Systems, Llc · NSN 5961-01-209-2807 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-209-2807 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-209-2807. Primary manufacturer part number: 407257-1-A.
Features
  • Transistor — FSC 5961
  • Terminal Type and Quantity: 4 RIBBON
  • Internal Configuration: JUNCTION CONTACT
  • Mounting Method: PRESS FIT
  • Current Rating Per Characteristic: 40.00 MILLIAMPERES MAXIMUM FORWARD CURRENT, DC
  • Voltage Rating in Volts Per Characteristic: 65.0 MINIMUM BREAKDOWN VOLTAGE, DC
  • Semiconductor Material: SILICON
  • 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 5961-01-209-2807, 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 Aimtron Systems, Llc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-01-209-2807
Primary Part Number407257-1-A
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerAimtron Systems, Llc
StatusCANCELLED
Terminal Type and Quantity4 RIBBON
Internal ConfigurationJUNCTION CONTACT
Mounting MethodPRESS FIT
Current Rating Per Characteristic40.00 MILLIAMPERES MAXIMUM FORWARD CURRENT, DC
Voltage Rating in Volts Per Characteristic65.0 MINIMUM BREAKDOWN VOLTAGE, DC
Semiconductor MaterialSILICON
Features ProvidedHERMETICALLY SEALED CASE
Power Rating Per Characteristic250.0 WATTS MINIMUM TOTAL POWER DISSIPATION
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5915-00-500-98952920137-44 INTERCHANGEABLE
Filter,band Pass
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
7640-00-627-112064005 INTERCHANGEABLE
Globe,terrestrial
Replogle Globes
5961-01-346-3957407257-1-C INTERCHANGEABLE
Transistor
Aimtron Systems, Llc
5961-01-390-4555407257-1-D INTERCHANGEABLE
Transistor
Aimtron Systems, Llc
5305-01-547-9772 INTERCHANGEABLE
Screw,cap,hexagon Head
5310-01-565-264164044 INTERCHANGEABLE
Nut,plain,hexagon
Tifco Industries, Inc. Dba Tifco Industries Inc
Cross-Reference Index
Part NumberManufacturer
407257-1-A Cardion Inc (USA)
SD8250 (GENERIC) Stmicroelectronics Inc (USA)
64044 Acrian Inc (USA)
407257-1-A PRIMARY Aimtron Systems, Llc (USA)
TAM-250 Acrian Inc (USA)
407257-1 Aimtron Systems, Llc (USA)
407257-1 Cardion Inc (USA)
Related Parts
5915-00-500-9895INTERCHANGEABLE
FILTER,BAND PASS
2920137-44
7640-00-627-1120INTERCHANGEABLE
GLOBE,TERRESTRIAL
64005
5961-01-346-3957INTERCHANGEABLE
TRANSISTOR
407257-1-C
5961-01-390-4555INTERCHANGEABLE
TRANSISTOR
407257-1-D
5305-01-547-9772INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5310-01-565-2641INTERCHANGEABLE
NUT,PLAIN,HEXAGON
64044

Frequently Asked Questions

What is NSN 5961-01-209-2807?

NSN 5961-01-209-2807 is a Transistor, manufactured by Aimtron Systems, Llc, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-01-209-2807?

NSN 5961-01-209-2807 has 7 cross-referenced part numbers: 407257-1-A (Cardion Inc), SD8250 (GENERIC) (Stmicroelectronics Inc), 64044 (Acrian Inc), 407257-1-A (Aimtron Systems, Llc), TAM-250 (Acrian Inc) and 2 more.

What NSN replaces 5961-01-209-2807?

There are 6 known substitutes for 5961-01-209-2807: 5915-00-500-9895, 7640-00-627-1120, 5961-01-346-3957 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 407257-1-A?

Key specifications for 407257-1-A: Overall Width: 0.900 INCHES NOMINAL IN; Terminal Type and Quantity: 4 RIBBON; Internal Configuration: JUNCTION CONTACT; Mounting Method: PRESS FIT. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-01-209-2807 still in active supply?

NSN 5961-01-209-2807 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.
PartsTable Design LLC · partstable.com