PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

F54LS378DMQBMicrocircuit,digital

Fairchild Semiconductor Corp · NSN 5962-01-299-1873 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-01-299-1873 — this item is cataloged by the U.S. Government under National Stock Number 5962-01-299-1873. Primary manufacturer part number: F54LS378DMQB.
Features
  • Microcircuit,digital — FSC 5962
  • Body Width: 0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
  • Inclosure Configuration: DUAL-IN-LINE
  • Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC
  • Design Function and Quantity: 6 FLIP-FLOP, D-TYPE
  • Test Data Document: 96906-MIL-STD-883 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
  • Inclosure Material: CERAMIC
  • Input Circuit Pattern: 8 INPUT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microcircuit,digital, cataloged under National Stock Number 5962-01-299-1873, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5962-01-299-1873
Primary Part NumberF54LS378DMQB
Item NameMicrocircuit,digital
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerFairchild Semiconductor Corp
StatusACTIVE
Body Width0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
Inclosure ConfigurationDUAL-IN-LINE
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Design Function and Quantity6 FLIP-FLOP, D-TYPE
Test Data Document96906-MIL-STD-883 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
Inclosure MaterialCERAMIC
Input Circuit Pattern8 INPUT
Body Length0.840 INCHES NOMINAL IN
Features ProvidedELECTROSTATIC SENSITIVE AND HERMETICALLY SEALED AND BURN IN AND W/ENABLE AND W/CLOCK
Time Rating Per Chacteristic27.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, LOW TO HIGH LEVEL OUTPUT AND 27.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, HIGH TO LOW LEVEL OUTPUT NS
Body Height0.185 INCHES NOMINAL IN
Storage Temp Range-65.0 TO 150.0 CELSIUS DEGC
Output Logic FormTRANSISTOR-TRANSISTOR LOGIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3960-00-411-01475030-1-3/8 INTERCHANGEABLE
Rod Scraper
Eaton Corporation Dba Jackson Plant
5962-01-110-99334039018-478 INTERCHANGEABLE
Microcircuit,digital
Honeywell International Inc. Dba Honeywell International
5962-01-149-9459A584A046-102 INTERCHANGEABLE
Microcircuit,digital
Kearfott Corporation Div Guidance and Navigation Division
5962-01-324-5929 INTERCHANGEABLE
Microcircuit,digital
Cross-Reference Index
Part NumberManufacturer
F54LS378DMQB Fairchild Semiconductor Corp (USA)
SNJ54LS378J Texas Instruments Incorporated (USA)
5030138 Us Army Combat Surveillance and Target Acquisition Laboratory (USA)
SNJ54LS378BEXS Protospec (USA)
Related Parts
3960-00-411-0147INTERCHANGEABLE
ROD SCRAPER
5030-1-3/8
5962-01-110-9933INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
4039018-478
5962-01-149-9459INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
A584A046-102
5962-01-324-5929INTERCHANGEABLE
MICROCIRCUIT,DIGITAL

Frequently Asked Questions

What is NSN 5962-01-299-1873?

NSN 5962-01-299-1873 is a Microcircuit,digital, manufactured by Fairchild Semiconductor Corp, classified under FSC 5962 (No Item Name Available). Status: active.

What are the part numbers for NSN 5962-01-299-1873?

NSN 5962-01-299-1873 has 4 cross-referenced part numbers: F54LS378DMQB (Fairchild Semiconductor Corp), SNJ54LS378J (Texas Instruments Incorporated), 5030138 (Us Army Combat Surveillance and Target Acquisition Laboratory), SNJ54LS378BEXS (Protospec).

What NSN replaces 5962-01-299-1873?

There are 4 known substitutes for 5962-01-299-1873: 3960-00-411-0147, 5962-01-110-9933, 5962-01-149-9459 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of F54LS378DMQB?

Key specifications for F54LS378DMQB: Body Width: 0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN; Inclosure Configuration: DUAL-IN-LINE; Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC; Design Function and Quantity: 6 FLIP-FLOP, D-TYPE. 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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