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A8451 ✓ 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 color: BLACK THIRD TEMP COEFFICIENT, material: COPPER ALLOY OVERALL, body_width: 0.938 INCHES NOMINAL IN, body_height: 1.438 INCHES NOMINAL IN, body_length: 1.375 INCHES NOMINAL IN, corner_shape: SQUARE ALL CORNERS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-241-9524, 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
A8451
NSN: 5950-00-241-9524
FSC: 5950
CAGE: 81160 — FOSTER TRANSFORMER CO DIV FOSTER TRANSFORMER COMPANY (USA)
SPECIFICATIONS
colorBLACK THIRD TEMP COEFFICIENT
materialCOPPER ALLOY OVERALL
body_width0.938 INCHES NOMINAL IN
body_height1.438 INCHES NOMINAL IN
body_length1.375 INCHES NOMINAL IN
corner_shapeSQUARE ALL CORNERS
shaft_length0.210 INCHES MAXIMUM IN
figure_heightUNABLE TO DECODE
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
inclosure_typeHERMETICALLY SEALED
overall_length1.025 INCHES NOMINAL IN
shaft_diameter0.124 INCHES NOMINAL IN
NSN5950-00-241-9524
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN A8451 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 0.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
WINDING OPERATING CURRENT: 20.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
•
MAXIMUM TRANSFORMER POWER RATING: 500.0 MILLIWATTS SINGLE COMPONENT
•
WINDING SHIELDING METHOD: INTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
•
BODY WIDTH: 1.031 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH: 0.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
TERMINAL TYPE AND QUANTITY: 7 PIN
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
TECHNICAL CHARACTERISTICS (FLIS)
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH0.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
WINDING OPERATING CURRENT20.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
MAXIMUM TRANSFORMER POWER RATING500.0 MILLIWATTS SINGLE COMPONENT
WINDING SHIELDING METHODINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
BODY WIDTH1.031 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH0.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
TERMINAL TYPE AND QUANTITY7 PIN
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
RELIABILITY INDICATORNOT ESTABLISHED
IMPEDANCE RATING IN OHMS200.0 NOMINAL SINGLE COMPONENT FIRST SECONDARY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
D351Interchangeable
interchangeable cross-reference
interchangeable
A845-1Interchangeable
interchangeable cross-reference
interchangeable
678-0321-00Interchangeable
interchangeable cross-reference
interchangeable
42-3-4-3Interchangeable
interchangeable cross-reference
interchangeable
31 105-001Interchangeable
interchangeable cross-reference
interchangeable
336-070-071Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A8451?
A8451 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace A8451?
There are 9 known substitutes for A8451: D351, A845-1, 678-0321-00 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A8451?
A8451 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-241-9524. 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