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PEI 3648 — TRANSFORMER,AUDIO FREQUENCY

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

PEI 3648: TRANSFORMER,AUDIO FREQUENCY.

The TRANSFORMER,AUDIO FREQUENCY is a the manufacturer industrial component. Key specifications include body_width: 1.562 INCHES MAXIMUM1.562 INCHES MAXIMUM IN, body_height: 2.219 INCHES MAXIMUM IN, body_length: 1.938 INCHES MAXIMUM1.938 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSEDFULLY INCLOSED, overall_height: 2.734 INCHES MAXIMUM2.734 INCHES MAXIMUM IN, mounting_method: THREADED HOLE(S) SINGLE GROUP. This part is cataloged in the U.S.

Government catalog under NSN 5950-00-487-7904, 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
PEI 3648
NSN: 5950-00-487-7904
FSC: 5950 — Coils and Transformers
CAGE: 13483 — PRECISION ELECTRONICS, INC (USA)
SPECIFICATIONS
body_width1.562 INCHES MAXIMUM1.562 INCHES MAXIMUM IN
body_height2.219 INCHES MAXIMUM IN
body_length1.938 INCHES MAXIMUM1.938 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSEDFULLY INCLOSED
overall_height2.734 INCHES MAXIMUM2.734 INCHES MAXIMUM IN
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating400.0 HERTZ MAXIMUM SINGLE COMPONENT400.0 HERTZ MAXIMUM SINGLE COMPONENT
nominal_thread_size0.138 INCHES SINGLE GROUP0.138 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp105.0 CELSIUS105.0 CELSIUS DEGC
impedance_rating_in_ohms2880.0 MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
thread_quantity_per_inch32 SINGLE GROUP
NSN5950-00-487-7904
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN PEI 3648 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
MOUNTING FACILITY QUANTITY: 2 SINGLE GROUP2 SINGLE GROUP
•
INCLOSURE TYPE: FULLY INCLOSEDFULLY INCLOSED
•
MOUNTING METHOD: THREADED HOLE(S) SINGLE GROUP
•
BODY WIDTH: 1.562 INCHES MAXIMUM1.562 INCHES MAXIMUM IN
•
BODY HEIGHT: 2.219 INCHES MAXIMUM IN
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT1 SECONDARY SINGLE COMPONENT
•
IMPEDANCE RATING IN OHMS: 2880.0 MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT2.734 INCHES MAXIMUM2.734 INCHES MAXIMUM IN
MOUNTING FACILITY QUANTITY2 SINGLE GROUP2 SINGLE GROUP
INCLOSURE TYPEFULLY INCLOSEDFULLY INCLOSED
MOUNTING METHODTHREADED HOLE(S) SINGLE GROUP
BODY WIDTH1.562 INCHES MAXIMUM1.562 INCHES MAXIMUM IN
BODY HEIGHT2.219 INCHES MAXIMUM IN
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT1 SECONDARY SINGLE COMPONENT
IMPEDANCE RATING IN OHMS2880.0 MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
IMPEDANCE RATING IN OHMS4500.0 MAXIMUM SINGLE COMPONENT SINGLE SECONDARY4500.0 MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
WINDING SHIELDING METHODINTERNAL SHIELD BROUGHT OUT TO TERMINAL AND GROUND BROUGHT OUT TO TERMINAL AND CORE GROUNDED AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT
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
661561Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is PEI 3648?
PEI 3648 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace PEI 3648?
There is 1 known substitute for PEI 3648: 661561. Substitute compatibility should be verified for your specific system.
What is the NSN for PEI 3648?
PEI 3648 is cataloged in the U.S. Government catalog under NSN 5950-00-487-7904. 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.