PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1SPS331858Transistor

Hazletine Corp Industrial Products Div · NSN 5961-01-026-1255 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-026-1255 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-026-1255. Primary manufacturer part number: 1SPS331858.
Features
  • Transistor — FSC 5961
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
  • Material: PLASTIC ENCLOSURE
  • Mounting Method: TERMINAL
  • Maximum Operating Temp Per Measurement Point: 165.0 CELSIUS JUNCTION DEGC
  • Internal Configuration: JUNCTION CONTACT
  • Overall Width Across Flats: 0.355 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
  • Electrode Internally-Electrically Connected to Case: COLLECTOR
Applications
  • Applications requiring Plastic Enclosure construction
General Description

The Transistor, cataloged under National Stock Number 5961-01-026-1255, 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 Hazletine Corp Industrial Products Div. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 8 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
NSN5961-01-026-1255
Primary Part Number1SPS331858
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerHazletine Corp Industrial Products Div
StatusACTIVE
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
MaterialPLASTIC ENCLOSURE
Mounting MethodTERMINAL
Maximum Operating Temp Per Measurement Point165.0 CELSIUS JUNCTION DEGC
Internal ConfigurationJUNCTION CONTACT
Overall Width Across Flats0.355 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Semiconductor MaterialSILICON
Current Rating Per Characteristic8.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC AND 0.30 AMPERES MAXIMUM BASE CURRENT, DC
Voltage Rating in Volts Per Characteristic80.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 5.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN AND 80.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6740-00-136-6451 INTERCHANGEABLE
Rod,head,titler
5961-01-123-5416886370 INTERCHANGEABLE
Transistor
North Atlantic Industries, Inc. Dba North Atlantic Industries
4820-01-438-3374310023 INTERCHANGEABLE
Parts Kit,shuttle Valve
Bosch Rexroth Corporation Div Industrial Hydraulics
Cross-Reference Index
Part NumberManufacturer
1SPS331858 Hazletine Corp Industrial Products Div (USA)
TIP31 Texas Instruments Incorporated (USA)
TIP31 Freescale Semiconductor, Inc. (USA)
101000077 Data General Corporation (USA)
310023 Datron World Communications, Inc. (USA)
152 Nte Electronics, Inc (USA)
TIP31 Renesas Electronics America Inc (USA)
STP-31 Semiconductor Technology, Inc. Dba Semiconductor Technology Inc (USA)
Related Parts
6740-00-136-6451INTERCHANGEABLE
ROD,HEAD,TITLER
5961-01-123-5416INTERCHANGEABLE
TRANSISTOR
886370
4820-01-438-3374INTERCHANGEABLE
PARTS KIT,SHUTTLE VALVE
310023

Frequently Asked Questions

What is NSN 5961-01-026-1255?

NSN 5961-01-026-1255 is a Transistor, manufactured by Hazletine Corp Industrial Products Div, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-026-1255?

NSN 5961-01-026-1255 has 8 cross-referenced part numbers: 1SPS331858 (Hazletine Corp Industrial Products Div), TIP31 (Texas Instruments Incorporated), TIP31 (Freescale Semiconductor, Inc.), 101000077 (Data General Corporation), 310023 (Datron World Communications, Inc.) and 3 more.

What NSN replaces 5961-01-026-1255?

There are 3 known substitutes for 5961-01-026-1255: 6740-00-136-6451, 5961-01-123-5416, 4820-01-438-3374. Verify interchangeability with system specifications before substitution.

What are the specifications of 1SPS331858?

Key specifications for 1SPS331858: Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD; Material: PLASTIC ENCLOSURE; Overall Height: 0.165 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Special Features: COLLECTOR-BASE AND COLLECTOR-EMITTER VOLTAGE 40 V; JUNCTION PATTERN ARRANGEMENT: NPN V. 14 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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