PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

250BTransistor

Gould Inc Foil Div · NSN 5961-00-980-7520 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-980-7520 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-980-7520. Primary manufacturer part number: 250B.
Features
  • Transistor — FSC 5961
  • Voltage Rating in Volts Per Characteristic: 70.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 50.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 30.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
  • Electrode Internally-Electrically Connected to Case: COLLECTOR
  • Features Provided: HERMETICALLY SEALED CASE
  • Terminal Type and Quantity: 1 THREADED STUD AND 2 PIN
  • Mounting Facility Quantity: 2
  • Semiconductor Material: GERMANIUM
  • Mounting Method: UNTHREADED HOLE(S)
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-980-7520, 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 Gould Inc Foil Div. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 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
NSN5961-00-980-7520
Primary Part Number250B
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerGould Inc Foil Div
StatusCANCELLED
Voltage Rating in Volts Per Characteristic70.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 50.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 30.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Features ProvidedHERMETICALLY SEALED CASE
Terminal Type and Quantity1 THREADED STUD AND 2 PIN
Mounting Facility Quantity2
Semiconductor MaterialGERMANIUM
Mounting MethodUNTHREADED HOLE(S)
Current Rating Per Characteristic500.00 MILLIAMPERES MAXIMUM BASE CURRENT, DC AND 3.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Internal ConfigurationJUNCTION CONTACT
Overall Diameter0.875 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
4310-00-035-7512111023PC252 INTERCHANGEABLE
Liner,cylinder
Curtiss-Wright Electro-Mechanical Corporation Div Epd
6625-00-144-3070ZM61U INTERCHANGEABLE
Bridge,capacitance-Inductance-Re
Joint Electronics Type Designation System
5360-00-292-424104751-250B-375 INTERCHANGEABLE
Spring,helical,compression
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
6625-00-435-5470 INTERCHANGEABLE
Bridge,impedance
6625-00-987-6722250B INTERCHANGEABLE
Detecting Element,directional Co
Bird Electronic Corporation Div Bird Electronic Corp
6685-01-373-2525250B INTERCHANGEABLE
Controller,pressure
Mks Inc.
Cross-Reference Index
Part NumberManufacturer
250B Gould Inc Foil Div (USA)
CQT885 Itt Semiconductors a Division of International Telephone and Telegraph Corp (USA)
472-0496-001 The Boeing Company Div Legacy Boeing Hb1 (USA)
472-0045-001REVB The Boeing Company Div Legacy Boeing Hb1 (USA)
690T1-77 The Boeing Company Div Legacy Boeing Hb1 (USA)
Related Parts
4310-00-035-7512INTERCHANGEABLE
LINER,CYLINDER
111023PC252
6625-00-144-3070INTERCHANGEABLE
BRIDGE,CAPACITANCE-INDUCTANCE-RE
ZM61U
5360-00-292-4241INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
04751-250B-375
6625-00-435-5470INTERCHANGEABLE
BRIDGE,IMPEDANCE
6625-00-987-6722INTERCHANGEABLE
DETECTING ELEMENT,DIRECTIONAL CO
250B
6685-01-373-2525INTERCHANGEABLE
CONTROLLER,PRESSURE
250B

Frequently Asked Questions

What is NSN 5961-00-980-7520?

NSN 5961-00-980-7520 is a Transistor, manufactured by Gould Inc Foil Div, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-980-7520?

NSN 5961-00-980-7520 has 5 cross-referenced part numbers: 250B (Gould Inc Foil Div), CQT885 (Itt Semiconductors a Division of International Telephone and Telegraph Corp), 472-0496-001 (The Boeing Company Div Legacy Boeing Hb1), 472-0045-001REVB (The Boeing Company Div Legacy Boeing Hb1), 690T1-77 (The Boeing Company Div Legacy Boeing Hb1).

What NSN replaces 5961-00-980-7520?

There are 6 known substitutes for 5961-00-980-7520: 4310-00-035-7512, 6625-00-144-3070, 5360-00-292-4241 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 250B?

Key specifications for 250B: Voltage Rating in Volts Per Characteristic: 70.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 50.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 30.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN; Electrode Internally-Electrically Connected to Case: COLLECTOR; Features Provided: HERMETICALLY SEALED CASE; Terminal Type and Quantity: 1 THREADED STUD AND 2 PIN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-980-7520 still in active supply?

NSN 5961-00-980-7520 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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