PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

400 00021 00Transistor

Rycom Instruments, Inc. · NSN 5961-00-224-5601 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-224-5601 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-224-5601. Primary manufacturer part number: 400 00021 00.
Features
  • Transistor — FSC 5961
  • Semiconductor Material: SILICON
  • Mounting Method: TERMINAL
  • Current Rating Per Characteristic: 50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Overall Diameter: 0.230 INCHES NOMINAL IN
  • Power Rating Per Characteristic: 310.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
  • Terminal Length: 0.400 INCHES MINIMUM IN
  • Internal Configuration: JUNCTION CONTACT
Applications
  • Applications requiring Plastic Enclosure construction
General Description

The Transistor, cataloged under National Stock Number 5961-00-224-5601, 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 Rycom Instruments, Inc.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-224-5601
Primary Part Number400 00021 00
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerRycom Instruments, Inc.
StatusACTIVE
Semiconductor MaterialSILICON
Mounting MethodTERMINAL
Current Rating Per Characteristic50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Overall Diameter0.230 INCHES NOMINAL IN
Power Rating Per Characteristic310.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
Terminal Length0.400 INCHES MINIMUM IN
Internal ConfigurationJUNCTION CONTACT
Voltage Rating in Volts Per Characteristic50.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 50.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 3.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
MaterialPLASTIC ENCLOSURE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5961-00-404-5537 INTERCHANGEABLE
Transistor
5961-00-728-5363 INTERCHANGEABLE
Transistor
5961-01-313-7187151-0276-01 INTERCHANGEABLE
Transistor
Tektronix, Inc.
Cross-Reference Index
Part NumberManufacturer
400 00021 00 Rycom Instruments, Inc. (USA)
SPS3322 Freescale Semiconductor, Inc. (USA)
1853-0086 Hewlett-Packard Company Dba HP (USA)
ST62391 National Semiconductor Corporation (USA)
2N5087 National Semiconductor Corporation (USA)
SPS3322 On Semiconductor Corporation (USA)
Related Parts
5961-00-404-5537INTERCHANGEABLE
TRANSISTOR
5961-00-728-5363INTERCHANGEABLE
TRANSISTOR
5961-01-313-7187INTERCHANGEABLE
TRANSISTOR
151-0276-01

Frequently Asked Questions

What is NSN 5961-00-224-5601?

NSN 5961-00-224-5601 is a Transistor, manufactured by Rycom Instruments, Inc., classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-224-5601?

NSN 5961-00-224-5601 has 6 cross-referenced part numbers: 400 00021 00 (Rycom Instruments, Inc.), SPS3322 (Freescale Semiconductor, Inc.), 1853-0086 (Hewlett-Packard Company Dba HP), ST62391 (National Semiconductor Corporation), 2N5087 (National Semiconductor Corporation) and 1 more.

What NSN replaces 5961-00-224-5601?

There are 3 known substitutes for 5961-00-224-5601: 5961-00-404-5537, 5961-00-728-5363, 5961-01-313-7187. Verify interchangeability with system specifications before substitution.

What are the specifications of 400 00021 00?

Key specifications for 400 00021 00: Semiconductor Material: SILICON; Overall Length: 0.400 INCHES MAXIMUM IN; Special Features: JUNCTION PATTERN ARRANGEMENT: NPNP; Mounting Method: TERMINAL. 12 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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