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F8903 ✓ 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: 0.938 INCHES NOMINAL IN, body_height: 1.438 INCHES NOMINAL IN, body_length: 1.375 INCHES NOMINAL IN, inclosure_type: HERMETICALLY SEALED, mounting_method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP, frequency_rating: 400.0 HERTZ 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 5950-00-648-5775, 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
F8903
NSN: 5950-00-648-5775
FSC: 5950
CAGE: 80223 — UNITED TRANSFORMER CORP SUB OF OPT INDUSTRIES INC (USA)
SPECIFICATIONS
body_width0.938 INCHES NOMINAL IN
body_height1.438 INCHES NOMINAL IN
body_length1.375 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALED
mounting_methodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
frequency_rating400.0 HERTZ MAXIMUM SINGLE COMPONENT
reliability_indicatorNOT ESTABLISHED
mounting_hole_diameter0.156 INCHES NOMINAL SINGLE GROUP IN
impedance_rating_in_ohms6000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
winding_operating_current30.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
mounting_facility_quantity2 SINGLE GROUP
terminal_type_and_quantity4 TAB, SOLDER LUG
NSN5950-00-648-5775
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN F8903 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
BODY LENGTH: 1.375 INCHES NOMINAL IN
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
•
IMPEDANCE RATING IN OHMS: 180.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
•
FREQUENCY RATING: 400.0 HERTZ MAXIMUM SINGLE COMPONENT
•
TERMINAL TYPE AND QUANTITY: 4 TAB, SOLDER LUG
•
INCLOSURE TYPE: HERMETICALLY SEALED
•
BODY WIDTH: 0.938 INCHES NOMINAL IN
•
DISTANCE BETWEEN MOUNTING FACILITY CENTERS: 1.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY LENGTH1.375 INCHES NOMINAL IN
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
IMPEDANCE RATING IN OHMS180.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
FREQUENCY RATING400.0 HERTZ MAXIMUM SINGLE COMPONENT
TERMINAL TYPE AND QUANTITY4 TAB, SOLDER LUG
INCLOSURE TYPEHERMETICALLY SEALED
BODY WIDTH0.938 INCHES NOMINAL IN
DISTANCE BETWEEN MOUNTING FACILITY CENTERS1.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
IMPEDANCE RATING IN OHMS6000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
MOUNTING FACILITY QUANTITY2 SINGLE GROUP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
19033Interchangeable
interchangeable cross-reference
interchangeable
855012Interchangeable
interchangeable cross-reference
interchangeable
AN817-8DInterchangeable
interchangeable cross-reference
interchangeable
AN515-6R7Interchangeable
interchangeable cross-reference
interchangeable
MS35206-223Interchangeable
interchangeable cross-reference
interchangeable
19033ADXInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F8903?
F8903 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace F8903?
There are 8 known substitutes for F8903: 19033, 855012, AN817-8D and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for F8903?
F8903 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-648-5775. 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