PartsTable
Technical Data Sheet

0745-4550-1D/3 — TRANSFORMER,AUDIO FREQUENCY

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

0745-4550-1D/3: TRANSFORMER,AUDIO FREQUENCY.

The TRANSFORMER,AUDIO FREQUENCY is a the manufacturer industrial component. Key specifications include body_width: 1.375 INCHES NOMINAL1.375 INCHES NOMINAL IN, body_height: 1.562 INCHES NOMINAL IN, body_length: 1.438 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSEDFULLY INCLOSED, mounting_method: FLANGE AND FLANGE AND UNTHREADED HOLE(S) SINGLE GROUPUNTHREADED HOLE(S) SINGLE GROUP, frequency_rating: 20.0 HERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT. This part is cataloged in the U.S.

Government catalog under NSN 5950-00-471-8398, 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
0745-4550-1D/3
NSN: 5950-00-471-8398
FSC: 5950 — Coils and Transformers
CAGE: 13850 — TECHNIPOWER LLC DBA UNIPOWER (USA)
SPECIFICATIONS
body_width1.375 INCHES NOMINAL1.375 INCHES NOMINAL IN
body_height1.562 INCHES NOMINAL IN
body_length1.438 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSEDFULLY INCLOSED
mounting_methodFLANGE AND FLANGE AND UNTHREADED HOLE(S) SINGLE GROUPUNTHREADED HOLE(S) SINGLE GROUP
frequency_rating20.0 HERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
reliability_indicatorNOT ESTABLISHED
mounting_hole_diameter0.125 INCHES NOMINAL SINGLE GROUP0.125 INCHES NOMINAL SINGLE GROUP IN
winding_shielding_methodINTERNAL SHIELD GROUNDED TO INCLOSURE AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT
mounting_facility_quantity4 SINGLE GROUP
terminal_type_and_quantity7 TAB, SOLDER LUG7 TAB, SOLDER LUG
winding_function_and_quantity1 PRIMARY AND 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT1 SECONDARY SINGLE COMPONENT
NSN5950-00-471-8398
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN 0745-4550-1D/3 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
MOUNTING FACILITY QUANTITY: 4 SINGLE GROUP
•
INCLOSURE TYPE: FULLY INCLOSEDFULLY INCLOSED
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
MOUNTING METHOD: FLANGE AND FLANGE AND UNTHREADED HOLE(S) SINGLE GROUPUNTHREADED HOLE(S) SINGLE GROUP
•
BODY WIDTH: 1.375 INCHES NOMINAL1.375 INCHES NOMINAL IN
•
BODY HEIGHT: 1.562 INCHES NOMINAL IN
•
MOUNTING HOLE DIAMETER: 0.125 INCHES NOMINAL SINGLE GROUP0.125 INCHES NOMINAL SINGLE GROUP IN
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT1 SECONDARY SINGLE COMPONENT
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY QUANTITY4 SINGLE GROUP
INCLOSURE TYPEFULLY INCLOSEDFULLY INCLOSED
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
MOUNTING METHODFLANGE AND FLANGE AND UNTHREADED HOLE(S) SINGLE GROUPUNTHREADED HOLE(S) SINGLE GROUP
BODY WIDTH1.375 INCHES NOMINAL1.375 INCHES NOMINAL IN
BODY HEIGHT1.562 INCHES NOMINAL IN
MOUNTING HOLE DIAMETER0.125 INCHES NOMINAL SINGLE GROUP0.125 INCHES NOMINAL SINGLE GROUP IN
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT1 SECONDARY SINGLE COMPONENT
WINDING SHIELDING METHODINTERNAL SHIELD GROUNDED TO INCLOSURE AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT
BODY LENGTH1.438 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5950 — Coils and Transformers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5950-00-000-0146 5950-00-001-1372 5950-00-001-1386 5950-00-001-1410 5950-00-001-1411 5950-00-001-1412 5950-00-001-1413 5950-00-001-1414
SUBSTITUTES & CROSS-REFERENCES 1
279-0096-040Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 0745-4550-1D/3?
0745-4550-1D/3 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace 0745-4550-1D/3?
There is 1 known substitute for 0745-4550-1D/3: 279-0096-040. Substitute compatibility should be verified for your specific system.
What is the NSN for 0745-4550-1D/3?
0745-4550-1D/3 is cataloged in the U.S. Government catalog under NSN 5950-00-471-8398. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.