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4T643 ✓ 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 inclosure_type: FULLY INCLOSED, overall_length: 2.120 INCHES MAXIMUM IN, mounting_method: TERMINAL SINGLE GROUP, frequency_rating: 20.0 HERTZ MINIMUM AND 15.0 KILOHERTZ MAXIMUM SINGLE COMPONENT, overall_diameter: 0.850 INCHES MAXIMUM IN, reliability_indicator: NOT ESTABLISHED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-01-330-0572, 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
4T643
NSN: 5950-01-330-0572
FSC: 5950
CAGE: 04620 — RAYCO ELECTRONIC MANUFACTURING, INC. DIV RAYCO ELECTRONICS MFG INC (USA)
SPECIFICATIONS
inclosure_typeFULLY INCLOSED
overall_length2.120 INCHES MAXIMUM IN
mounting_methodTERMINAL SINGLE GROUP
frequency_rating20.0 HERTZ MINIMUM AND 15.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
overall_diameter0.850 INCHES MAXIMUM IN
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp130.0 CELSIUS DEGC
winding_shielding_methodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
winding_operating_current2.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT ALL PRIMARY
terminal_type_and_quantity9 WIRE LEAD
mounting_bolt_circle_diameter0.570 INCHES MINIMUM AND 0.630 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
winding_function_and_quantity2 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
NSN5950-01-330-0572
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN 4T643 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
WINDING FUNCTION AND QUANTITY: 2 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
•
OVERALL DIAMETER: 0.850 INCHES MAXIMUM IN
•
MOUNTING BOLT CIRCLE DIAMETER: 0.570 INCHES MINIMUM AND 0.630 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
WINDING SHIELDING METHOD: INTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
•
MOUNTING METHOD: TERMINAL SINGLE GROUP
•
TERMINAL TYPE AND QUANTITY: 9 WIRE LEAD
•
INCLOSURE TYPE: FULLY INCLOSED
TECHNICAL CHARACTERISTICS (FLIS)
RELIABILITY INDICATORNOT ESTABLISHED
WINDING FUNCTION AND QUANTITY2 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
OVERALL DIAMETER0.850 INCHES MAXIMUM IN
MOUNTING BOLT CIRCLE DIAMETER0.570 INCHES MINIMUM AND 0.630 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
WINDING SHIELDING METHODINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
MOUNTING METHODTERMINAL SINGLE GROUP
TERMINAL TYPE AND QUANTITY9 WIRE LEAD
INCLOSURE TYPEFULLY INCLOSED
FREQUENCY RATING20.0 HERTZ MINIMUM AND 15.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
OVERALL LENGTH2.120 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
10685Interchangeable
interchangeable cross-reference
interchangeable
610AS136Interchangeable
interchangeable cross-reference
interchangeable
106185Interchangeable
interchangeable cross-reference
interchangeable
59066D98-1Interchangeable
interchangeable cross-reference
interchangeable
10685AInterchangeable
interchangeable cross-reference
interchangeable
AP306A30DInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4T643?
4T643 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace 4T643?
There are 12 known substitutes for 4T643: 10685, 610AS136, 106185 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4T643?
4T643 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-01-330-0572. 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