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Technical Data Sheet
PartsTable / MRO / 543-1781-003
543-1781-003 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 FILTER,BAND PASS is a the manufacturer industrial component. Key specifications include inclosure_type: HERMETICALLY SEALED, style_designator: RECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES, reference_frequency_per_function: 3.45 MEGAHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED, frequency_band_width_per_function: 3.37 MEGAHERTZ BLANK AND 3.53 MEGAHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED, principal_circuitry_type_per_function: INDUCTANCE-CAPACITANCE BLANK LOCATION NOT OTHERWISE SPECIFIED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5915-00-679-9363, 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
MRO→ MRO_GENERAL→ 543-1781-003
NSN: 5915-00-679-9363
FSC: 5915
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
inclosure_typeHERMETICALLY SEALED
style_designatorRECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES
reference_frequency_per_function3.45 MEGAHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
frequency_band_width_per_function3.37 MEGAHERTZ BLANK AND 3.53 MEGAHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
principal_circuitry_type_per_functionINDUCTANCE-CAPACITANCE BLANK LOCATION NOT OTHERWISE SPECIFIED
NSN5915-00-679-9363
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FILTER,BAND PASS TITLE COMPONENT PN 543-1781-003 MFR FILTER,BAND PASS
KEY FEATURES
•
FREQUENCY BAND WIDTH PER FUNCTION: 3.37 MEGAHERTZ BLANK AND 3.53 MEGAHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
•
INCLOSURE TYPE: HERMETICALLY SEALED
•
REFERENCE FREQUENCY PER FUNCTION: 3.45 MEGAHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
•
PRINCIPAL CIRCUITRY TYPE PER FUNCTION: INDUCTANCE-CAPACITANCE BLANK LOCATION NOT OTHERWISE SPECIFIED
•
STYLE DESIGNATOR: RECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES
TECHNICAL CHARACTERISTICS (FLIS)
FREQUENCY BAND WIDTH PER FUNCTION3.37 MEGAHERTZ BLANK AND 3.53 MEGAHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
INCLOSURE TYPEHERMETICALLY SEALED
REFERENCE FREQUENCY PER FUNCTION3.45 MEGAHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
PRINCIPAL CIRCUITRY TYPE PER FUNCTIONINDUCTANCE-CAPACITANCE BLANK LOCATION NOT OTHERWISE SPECIFIED
STYLE DESIGNATORRECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
2691Interchangeable
interchangeable cross-reference
interchangeable
3754Interchangeable
interchangeable cross-reference
interchangeable
2M1450Interchangeable
interchangeable cross-reference
interchangeable
64011Interchangeable
interchangeable cross-reference
interchangeable
705834Interchangeable
interchangeable cross-reference
interchangeable
116776Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 543-1781-003?
543-1781-003 is a FILTER,BAND PASS. It is classified as a MRO (MRO_GENERAL).
What parts can replace 543-1781-003?
There are 20 known substitutes for 543-1781-003: 2691, 3754, 2M1450 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 543-1781-003?
543-1781-003 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5915-00-679-9363. 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