PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 677-0343-020
677-0343-020 ✓ 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 TRANSFORMER,AUDIO FREQUENCY is a the manufacturer industrial component. Key specifications include body_width: 1.812 INCHES MAXIMUM IN, body_height: 0.740 INCHES MAXIMUM IN, body_length: 1.219 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, mounting_method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP, frequency_rating: 250.0 HERTZ MINIMUM AND 3.1 KILOHERTZ MAXIMUM SINGLE COMPONENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-528-8659, 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
677-0343-020
NSN: 5950-00-528-8659
FSC: 5950
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
body_width1.812 INCHES MAXIMUM IN
body_height0.740 INCHES MAXIMUM IN
body_length1.219 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
mounting_methodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
frequency_rating250.0 HERTZ MINIMUM AND 3.1 KILOHERTZ MAXIMUM SINGLE COMPONENT
reliability_indicatorNOT ESTABLISHED
mounting_hole_diameter0.140 INCHES NOMINAL SINGLE GROUP IN
impedance_rating_in_ohms600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
winding_shielding_methodINTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE SINGLE COMPONENT
mounting_facility_quantity4 SINGLE GROUP
terminal_type_and_quantity5 WIRE LEAD
NSN5950-00-528-8659
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN 677-0343-020 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
MOUNTING HOLE DIAMETER: 0.140 INCHES NOMINAL SINGLE GROUP IN
•
BODY WIDTH: 1.812 INCHES MAXIMUM IN
•
INCLOSURE TYPE: FULLY INCLOSED
•
TERMINAL TYPE AND QUANTITY: 5 WIRE LEAD
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
•
MAXIMUM TRANSFORMER POWER RATING: 500.0 MILLIWATTS SINGLE COMPONENT
•
FREQUENCY RATING: 250.0 HERTZ MINIMUM AND 3.1 KILOHERTZ MAXIMUM SINGLE COMPONENT
•
MOUNTING FACILITY QUANTITY: 4 SINGLE GROUP
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING HOLE DIAMETER0.140 INCHES NOMINAL SINGLE GROUP IN
BODY WIDTH1.812 INCHES MAXIMUM IN
INCLOSURE TYPEFULLY INCLOSED
TERMINAL TYPE AND QUANTITY5 WIRE LEAD
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
MAXIMUM TRANSFORMER POWER RATING500.0 MILLIWATTS SINGLE COMPONENT
FREQUENCY RATING250.0 HERTZ MINIMUM AND 3.1 KILOHERTZ MAXIMUM SINGLE COMPONENT
MOUNTING FACILITY QUANTITY4 SINGLE GROUP
BODY LENGTH1.219 INCHES MAXIMUM IN
WINDING SHIELDING METHODINTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE SINGLE COMPONENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
44127Interchangeable
interchangeable cross-reference
interchangeable
7705148G1Interchangeable
interchangeable cross-reference
interchangeable
A17161Interchangeable
interchangeable cross-reference
interchangeable
503-S 57Interchangeable
interchangeable cross-reference
interchangeable
350-RTInterchangeable
interchangeable cross-reference
interchangeable
2150-06Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 677-0343-020?
677-0343-020 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace 677-0343-020?
There are 8 known substitutes for 677-0343-020: 44127, 7705148G1, A17161 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 677-0343-020?
677-0343-020 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-528-8659. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026