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PartsTable / COMPONENT / 5403DMQB
5403DMQB ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include body_width: 0.310 INCHES NOMINAL IN, body_length: 0.785 INCHES NOMINAL IN, features_provided: MONOLITHIC, output_logic_form: TRANSISTOR-TRANSISTOR LOGIC, operating_temp_range: -55.0 TO 125.0 CELSIUS DEGC, input_circuit_pattern: QUAD 2 INPUT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-01-018-3441, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
5403DMQB
NSN: 5962-01-018-3441
FSC: 5962
CAGE: 07263 — FAIRCHILD SEMICONDUCTOR CORP (USA)
SPECIFICATIONS
body_width0.310 INCHES NOMINAL IN
body_length0.785 INCHES NOMINAL IN
features_providedMONOLITHIC
output_logic_formTRANSISTOR-TRANSISTOR LOGIC
operating_temp_range-55.0 TO 125.0 CELSIUS DEGC
input_circuit_patternQUAD 2 INPUT
design_function_and_quantity4 GATE, NAND
NSN5962-01-018-3441
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MICROCIRCUIT,DIGITAL TITLE COMPONENT PN 5403DMQB MFR MICROCIRCUIT,DIGITAL
KEY FEATURES
•
BODY WIDTH: 0.310 INCHES NOMINAL IN
•
BODY LENGTH: 0.785 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY WIDTH0.310 INCHES NOMINAL IN
BODY LENGTH0.785 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
RB5403FInterchangeable
interchangeable cross-reference
interchangeable
SNC5403JInterchangeable
interchangeable cross-reference
interchangeable
537805-1Interchangeable
interchangeable cross-reference
interchangeable
2433887-999Interchangeable
interchangeable cross-reference
interchangeable
DM5403J883BInterchangeable
interchangeable cross-reference
interchangeable
DM5403J883BAInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5403DMQB?
5403DMQB is a MICROCIRCUIT,DIGITAL.
What parts can replace 5403DMQB?
There are 18 known substitutes for 5403DMQB: RB5403F, SNC5403J, 537805-1 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5403DMQB?
5403DMQB is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-01-018-3441. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026