PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N5172ATransistor

Adelco Elektronik Gmbh · NSN 5961-00-145-5991 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-145-5991 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-145-5991. Primary manufacturer part number: 2N5172A.
Features
  • Transistor — FSC 5961
  • Voltage Rating in Volts Per Characteristic: 25.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 25.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 5.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
  • Specification/standard Data: 80131-RELEASE5622 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
  • Mounting Method: TERMINAL
  • Terminal Length: 0.500 INCHES MINIMUM IN
  • Material: PLASTIC ENCLOSURE
  • Internal Configuration: JUNCTION CONTACT
  • Current Rating Per Characteristic: 100.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Applications
  • Applications requiring Plastic Enclosure construction
General Description

The Transistor, cataloged under National Stock Number 5961-00-145-5991, 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 Adelco Elektronik Gmbh. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 13 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-145-5991
Primary Part Number2N5172A
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerAdelco Elektronik Gmbh
StatusACTIVE
Voltage Rating in Volts Per Characteristic25.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 25.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 5.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Specification/standard Data80131-RELEASE5622 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Mounting MethodTERMINAL
Terminal Length0.500 INCHES MINIMUM IN
MaterialPLASTIC ENCLOSURE
Internal ConfigurationJUNCTION CONTACT
Current Rating Per Characteristic100.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Power Rating Per Characteristic200.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Semiconductor MaterialSILICON
Overall Diameter0.205 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5961-00-242-2398 INTERCHANGEABLE
Transistor
5306-00-437-12785001184 INTERCHANGEABLE
Bolt,shoulder
Meggitt Aircraft Braking Systems Corporation
5961-00-458-8787 INTERCHANGEABLE
Semiconductor Device,diode
1650-00-565-7433140002 INTERCHANGEABLE
Slide,directional Control Linear
Meggitt North Hollywood Inc
1660-00-601-4765140002 INTERCHANGEABLE
Fitting,pressure Li
Meggitt Safety Systems Inc
2920-00-603-424614000-2 INTERCHANGEABLE
Lead Assembly
Champion Aerospace Llc
5815-00-707-5791152009 INTERCHANGEABLE
Keytop,keyboard
Lucent Technologies Inc Corporate Headquarters
5910-00-809-8090152009 INTERCHANGEABLE
Capacitor,fixed,electrolytic
Fluke Corp
4940-01-027-4378 INTERCHANGEABLE
Reference Leak
5961-01-099-73382N5172 INTERCHANGEABLE
Transistor
Central Semiconductor, Llc Dba Central Semiconductor Corp
Cross-Reference Index
Part NumberManufacturer
2N5172A Adelco Elektronik Gmbh (DEU)
RELEASE5622 Electronic Industries Association
2N5172 Electronic Industries Association
5001-184 Raytheon Company Div Rmd Strategic (USA)
152009 Dictaphone Corporation (USA)
2N5172 Adelco Elektronik Gmbh (DEU)
P1018-1 Allied Healthcare Products, Inc. Dba Allied (USA)
140-002 Panametrics Llc (USA)
2N5180 British Sarozal Ltd (GBR)
P1018-1 Allied Healthcare Products Inc Gomco Div (USA)
0481-0004 Bayly Networks, Inc. Dba Coastcom Networks (USA)
2N5172 Recortec Inc. Dba Recortec Inc (USA)
2N5172 Csr Industries Inc (USA)
2N5172 General Electric Co Semi-Conductor Products Dept (USA)
2N5172 Sprague Electric Co World Hqs (USA)
Related Parts
5961-00-242-2398INTERCHANGEABLE
TRANSISTOR
5306-00-437-1278INTERCHANGEABLE
BOLT,SHOULDER
5001184
5961-00-458-8787INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
1650-00-565-7433INTERCHANGEABLE
SLIDE,DIRECTIONAL CONTROL LINEAR
140002
1660-00-601-4765INTERCHANGEABLE
FITTING,PRESSURE LI
140002
2920-00-603-4246INTERCHANGEABLE
LEAD ASSEMBLY
14000-2
5815-00-707-5791INTERCHANGEABLE
KEYTOP,KEYBOARD
152009
5910-00-809-8090INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
152009
4940-01-027-4378INTERCHANGEABLE
REFERENCE LEAK
5961-01-099-7338INTERCHANGEABLE
TRANSISTOR
2N5172
5305-01-109-9622INTERCHANGEABLE
SCREW
6910-01-204-8199INTERCHANGEABLE
MANIKIN,RESUSCITATION TRAINING
14001001

Frequently Asked Questions

What is NSN 5961-00-145-5991?

NSN 5961-00-145-5991 is a Transistor, manufactured by Adelco Elektronik Gmbh, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-145-5991?

NSN 5961-00-145-5991 has 15 cross-referenced part numbers: 2N5172A (Adelco Elektronik Gmbh), RELEASE5622 (Electronic Industries Association), 2N5172 (Electronic Industries Association), 5001-184 (Raytheon Company Div Rmd Strategic), 152009 (Dictaphone Corporation) and 10 more.

What NSN replaces 5961-00-145-5991?

There are 12 known substitutes for 5961-00-145-5991: 5961-00-242-2398, 5306-00-437-1278, 5961-00-458-8787 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N5172A?

Key specifications for 2N5172A: Voltage Rating in Volts Per Characteristic: 25.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 25.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 5.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN; Special Features: JUNCTION PATTERN ARRANGEMENT: NPN; Specification/standard Data: 80131-RELEASE5622 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION; Overall Length: 0.265 INCHES MAXIMUM IN. 13 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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