PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-B-620782Transistor

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5961-01-157-0449 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-157-0449 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-157-0449. Primary manufacturer part number: SM-B-620782.
Features
  • Transistor — FSC 5961
  • Mounting Method: TERMINAL
  • Semiconductor Material: GERMANIUM
  • Current Rating Per Characteristic: 0.25 MILLIAMPERES MAXIMUM COLLECTOR CUTOFF CURRENT, DC, EMITTER OPEN
  • Features Provided: HERMETICALLY SEALED CASE
  • Overall Diameter: 0.650 INCHES MAXIMUM IN
  • Electrode Internally-Electrically Connected to Case: COLLECTOR
  • Voltage Rating in Volts Per Characteristic: 45.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 20.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 35.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE, DC WITH BASE SHORT-CIRCUITED TO EMITTER
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-157-0449, 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 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5961-01-157-0449
Primary Part NumberSM-B-620782
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Mounting MethodTERMINAL
Semiconductor MaterialGERMANIUM
Current Rating Per Characteristic0.25 MILLIAMPERES MAXIMUM COLLECTOR CUTOFF CURRENT, DC, EMITTER OPEN
Features ProvidedHERMETICALLY SEALED CASE
Overall Diameter0.650 INCHES MAXIMUM IN
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Voltage Rating in Volts Per Characteristic45.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 20.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 35.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE, DC WITH BASE SHORT-CIRCUITED TO EMITTER
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Internal ConfigurationJUNCTION CONTACT
Power Rating Per Characteristic7.5 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
Terminal Length0.440 INCHES MAXIMUM IN
Terminal Circle Diameter0.146 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5961-00-889-4274 INTERCHANGEABLE
Transistor
5961-00-978-9041 INTERCHANGEABLE
Transistor
5961-00-989-6707 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
SM-B-620782 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
2N1183 Semitronics Corp (USA)
Related Parts
5961-00-889-4274INTERCHANGEABLE
TRANSISTOR
5961-00-978-9041INTERCHANGEABLE
TRANSISTOR
5961-00-989-6707INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-01-157-0449?

NSN 5961-01-157-0449 is a Transistor, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-157-0449?

NSN 5961-01-157-0449 has 2 cross-referenced part numbers: SM-B-620782 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 2N1183 (Semitronics Corp).

What NSN replaces 5961-01-157-0449?

There are 3 known substitutes for 5961-01-157-0449: 5961-00-889-4274, 5961-00-978-9041, 5961-00-989-6707. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-B-620782?

Key specifications for SM-B-620782: Mounting Method: TERMINAL; Semiconductor Material: GERMANIUM; Current Rating Per Characteristic: 0.25 MILLIAMPERES MAXIMUM COLLECTOR CUTOFF CURRENT, DC, EMITTER OPEN; Special Features: JUNCTION PATTERN ARRANGEMENT: PNP. 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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