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Technical Data Sheet
PartsTable / COMPONENT / AU7977
AU7977 ✓ 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: 1.500 INCHES NOMINAL IN, body_height: 2.125 INCHES NOMINAL IN, body_length: 1.500 INCHES NOMINAL IN, inclosure_type: HERMETICALLY SEALED, mounting_method: THREADED STUD(S) SINGLE GROUP, frequency_rating: 300.0 HERTZ MINIMUM AND 3.5 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 5950-00-647-6993, 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
AU7977
NSN: 5950-00-647-6993
FSC: 5950
CAGE: 95970 — MTE CORP MILWAUKEE TRANSFORMER CO (USA)
SPECIFICATIONS
body_width1.500 INCHES NOMINAL IN
body_height2.125 INCHES NOMINAL IN
body_length1.500 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALED
mounting_methodTHREADED STUD(S) SINGLE GROUP
frequency_rating300.0 HERTZ MINIMUM AND 3.5 KILOHERTZ MAXIMUM SINGLE COMPONENT
nominal_thread_size0.138 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
impedance_rating_in_ohms600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
thread_quantity_per_inch32 SINGLE GROUP
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
winding_operating_current10.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
NSN5950-00-647-6993
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN AU7977 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
THREAD QUANTITY PER INCH: 32 SINGLE GROUP
•
MOUNTING METHOD: THREADED STUD(S) SINGLE GROUP
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
•
PRIMARY TO SECONDARY TURN RATIO: 1 TO 4-1/10 SINGLE COMPONENT
•
FREQUENCY RATING: 300.0 HERTZ MINIMUM AND 3.5 KILOHERTZ MAXIMUM SINGLE COMPONENT
•
MOUNTING FACILITY QUANTITY: 4 SINGLE GROUP
•
BODY LENGTH: 1.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
RELIABILITY INDICATORNOT ESTABLISHED
THREAD QUANTITY PER INCH32 SINGLE GROUP
MOUNTING METHODTHREADED STUD(S) SINGLE GROUP
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
PRIMARY TO SECONDARY TURN RATIO1 TO 4-1/10 SINGLE COMPONENT
FREQUENCY RATING300.0 HERTZ MINIMUM AND 3.5 KILOHERTZ MAXIMUM SINGLE COMPONENT
MOUNTING FACILITY QUANTITY4 SINGLE GROUP
BODY LENGTH1.500 INCHES NOMINAL IN
BODY HEIGHT2.125 INCHES NOMINAL IN
IMPEDANCE RATING IN OHMS10000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
16046Interchangeable
interchangeable cross-reference
interchangeable
0768-1029Interchangeable
interchangeable cross-reference
interchangeable
MS90728-123Interchangeable
interchangeable cross-reference
interchangeable
YA60-6Interchangeable
interchangeable cross-reference
interchangeable
7903Interchangeable
interchangeable cross-reference
interchangeable
A1430-60Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AU7977?
AU7977 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace AU7977?
There are 20 known substitutes for AU7977: 16046, 0768-1029, MS90728-123 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AU7977?
AU7977 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-647-6993. 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