PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

54F20DMQBMicrocircuit,digital

Fairchild Semiconductor Corp · NSN 5962-01-181-4862 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-01-181-4862 — this item is cataloged by the U.S. Government under National Stock Number 5962-01-181-4862. Primary manufacturer part number: 54F20DMQB.
Features
  • Microcircuit,digital — FSC 5962
  • Time Rating Per Chacteristic: 7.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, LOW TO HIGH LEVEL OUTPUT AND 6.50 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, HIGH TO LOW LEVEL OUTPUT NS
  • Output Logic Form: TRANSISTOR-TRANSISTOR LOGIC
  • Terminal Surface Treatment: SOLDER
  • Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC
  • Inclosure Configuration: DUAL-IN-LINE
  • Features Provided: HERMETICALLY SEALED AND MONOLITHIC AND SCHOTTKY
  • Case Outline Source and Designator: D-1 MIL-M-38510
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microcircuit,digital, cataloged under National Stock Number 5962-01-181-4862, is classified within Federal Supply Class 5962 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Fairchild Semiconductor Corp. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 20 commercial cross-references from 13 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5962-01-181-4862
Primary Part Number54F20DMQB
Item NameMicrocircuit,digital
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerFairchild Semiconductor Corp
StatusCANCELLED
Time Rating Per Chacteristic7.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, LOW TO HIGH LEVEL OUTPUT AND 6.50 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, HIGH TO LOW LEVEL OUTPUT NS
Output Logic FormTRANSISTOR-TRANSISTOR LOGIC
Terminal Surface TreatmentSOLDER
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Inclosure ConfigurationDUAL-IN-LINE
Features ProvidedHERMETICALLY SEALED AND MONOLITHIC AND SCHOTTKY
Case Outline Source and DesignatorD-1 MIL-M-38510
Inclosure MaterialCERAMIC AND GLASS
Body Width0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
Test Data Document81349-MIL-M-38510 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Body Length0.785 INCHES MAXIMUM IN
Voltage Rating and Type Per Characteristic7.0 VOLTS MAXIMUM POWER SOURCE
Body Height0.185 INCHES NOMINAL IN
Maximum Power Dissipation Rating28.0 MILLIWATTS
Storage Temp Range-65.0 TO 150.0 CELSIUS DEGC
Design Function and Quantity2 GATE, NAND
Specification/standard Data81349-MIL-M-38510/330 GOVERNMENT SPECIFICATION
Input Circuit PatternDUAL 4 INPUT
Terminal Type and Quantity14 PRINTED CIRCUIT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5930-00-064-311890EA1C20F3J1WL10N1 INTERCHANGEABLE
Switch,push
Safran Electronics & Defense, Avionics Usa, Llc
5950-00-645-9185 INTERCHANGEABLE
Transformer,power
5962-01-179-13797907809-26 INTERCHANGEABLE
Microcircuit,linear
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
5962-01-179-13977908283-05 INTERCHANGEABLE
Microcircuit,digital
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
5962-01-237-8947 INTERCHANGEABLE
Microcircuit,digital
5962-01-240-0503 INTERCHANGEABLE
Microcircuit,digital
5962-01-358-045054F20DM-QB INTERCHANGEABLE
Microcircuit,digital
National Semiconductor Corporation
Cross-Reference Index
Part NumberManufacturer
54F20DMQB Fairchild Semiconductor Corp (USA)
74F20PC National Semiconductor (uk) Ltd (GBR)
MIL-M-38510/330 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
S161-54F20 Northrop Grumman Systems Corporation (USA)
M38510/33004BCA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
7908283-01 Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan (USA)
351-3593-050 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
M38510/33004BCB Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
7909904-06 Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan (USA)
74F20PC Fairchild Semiconductor Corp (USA)
U74F20 Leonardo Tactical Systems (GBR)
685-7372-078 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
10136166 Nimikkeistokeskus Ncb Finland (FIN)
M38510/33004BCX Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5014710-001 Thales Uk Limited Dba Thales Uk Ltd Training and Simulation (GBR)
654665 Fluke Corp (USA)
74F20 Fairchild Semiconductor Corp (USA)
4154100-716 Raytheon Company Div Rmd Strategic (USA)
G492096-170 Raytheon Company Div Corp (USA)
U74F20 Drs Rugged Systems (europe) Ltd (GBR)
Related Parts
5930-00-064-3118INTERCHANGEABLE
SWITCH,PUSH
90EA1C20F3J1WL10N1
5950-00-645-9185INTERCHANGEABLE
TRANSFORMER,POWER
5962-01-179-1379INTERCHANGEABLE
MICROCIRCUIT,LINEAR
7907809-26
5962-01-179-1397INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
7908283-05
5962-01-237-8947INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5962-01-240-0503INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5962-01-358-0450INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
54F20DM-QB

Frequently Asked Questions

What is NSN 5962-01-181-4862?

NSN 5962-01-181-4862 is a Microcircuit,digital, manufactured by Fairchild Semiconductor Corp, classified under FSC 5962 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5962-01-181-4862?

NSN 5962-01-181-4862 has 20 cross-referenced part numbers: 54F20DMQB (Fairchild Semiconductor Corp), 74F20PC (National Semiconductor (uk) Ltd), MIL-M-38510/330 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), S161-54F20 (Northrop Grumman Systems Corporation), M38510/33004BCA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 15 more.

What NSN replaces 5962-01-181-4862?

There are 7 known substitutes for 5962-01-181-4862: 5930-00-064-3118, 5950-00-645-9185, 5962-01-179-1379 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 54F20DMQB?

Key specifications for 54F20DMQB: Time Rating Per Chacteristic: 7.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, LOW TO HIGH LEVEL OUTPUT AND 6.50 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, HIGH TO LOW LEVEL OUTPUT NS; Output Logic Form: TRANSISTOR-TRANSISTOR LOGIC; Terminal Surface Treatment: SOLDER; Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5962-01-181-4862 still in active supply?

NSN 5962-01-181-4862 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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