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BC3521 ✓ 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: 1.125 INCHES MAXIMUM IN, body_height: 1.625 INCHES MAXIMUM IN, body_length: 1.250 INCHES MAXIMUM IN, inclosure_type: HERMETICALLY SEALED, overall_height: 2.000 INCHES NOMINAL IN, mounting_method: THREADED HOLE(S) SINGLE GROUP. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-829-3296, 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
BC3521
NSN: 5950-00-829-3296
FSC: 5950
CAGE: 97315 — BALLASTRAN CORP (USA)
SPECIFICATIONS
body_width1.125 INCHES MAXIMUM IN
body_height1.625 INCHES MAXIMUM IN
body_length1.250 INCHES MAXIMUM IN
inclosure_typeHERMETICALLY SEALED
overall_height2.000 INCHES NOMINAL IN
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating6.0 KILOHERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
nominal_thread_size0.112 INCHES SINGLE GROUP IN
transformer_functionLINE
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp100.0 CELSIUS DEGC
impedance_rating_in_ohms160.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
NSN5950-00-829-3296
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN BC3521 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
MOUNTING METHOD: THREADED HOLE(S) SINGLE GROUP
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
NOMINAL THREAD SIZE: 0.112 INCHES SINGLE GROUP IN
•
TRANSFORMER FUNCTION: LINE
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 0.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
BODY WIDTH: 1.125 INCHES MAXIMUM IN
•
WINDING OPERATING CURRENT: 100.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
•
FREQUENCY RATING: 6.0 KILOHERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING METHODTHREADED HOLE(S) SINGLE GROUP
RELIABILITY INDICATORNOT ESTABLISHED
NOMINAL THREAD SIZE0.112 INCHES SINGLE GROUP IN
TRANSFORMER FUNCTIONLINE
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH0.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
BODY WIDTH1.125 INCHES MAXIMUM IN
WINDING OPERATING CURRENT100.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
FREQUENCY RATING6.0 KILOHERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH0.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
BODY LENGTH1.250 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
677-0309-010Interchangeable
interchangeable cross-reference
interchangeable
11079Interchangeable
interchangeable cross-reference
interchangeable
50240Interchangeable
interchangeable cross-reference
interchangeable
402X4Interchangeable
interchangeable cross-reference
interchangeable
B18.3Interchangeable
interchangeable cross-reference
interchangeable
43020Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BC3521?
BC3521 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace BC3521?
There are 16 known substitutes for BC3521: 677-0309-010, 11079, 50240 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BC3521?
BC3521 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-829-3296. 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