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DSF165 ✓ 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_length: 0.390 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, frequency_rating: 300.0 HERTZ MINIMUM AND 3000.0 HERTZ MAXIMUM SINGLE COMPONENT, features_provided: TINNED WIRE LEADS, body_outside_diameter: 0.535 INCHES MAXIMUM IN, reliability_indicator: NOT ESTABLISHED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-01-176-3621, 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
DSF165
NSN: 5950-01-176-3621
FSC: 5950
CAGE: 80223 — UNITED TRANSFORMER CORP SUB OF OPT INDUSTRIES INC (USA)
SPECIFICATIONS
body_length0.390 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
frequency_rating300.0 HERTZ MINIMUM AND 3000.0 HERTZ MAXIMUM SINGLE COMPONENT
features_providedTINNED WIRE LEADS
body_outside_diameter0.535 INCHES MAXIMUM IN
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp130.0 CELSIUS DEGC
impedance_rating_in_ohms600.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
winding_shielding_methodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
terminal_type_and_quantity7 PIN
winding_function_and_quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
primary_to_secondary_turn_ratio1 TO 1 TO 1 SINGLE COMPONENT
NSN5950-01-176-3621
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN DSF165 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
HAZARDOUS LOCATIONS/ENVIRONMENTAL PROTECTION: MOISTURE RESISTANT
•
MAXIMUM OPERATING TEMP: 130.0 CELSIUS DEGC
•
WINDING SHIELDING METHOD: INTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
•
PRIMARY TO SECONDARY TURN RATIO: 1 TO 1 TO 1 SINGLE COMPONENT
•
IMPEDANCE RATING IN OHMS: 600.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
•
INCLOSURE TYPE: FULLY INCLOSED
•
TERMINAL TYPE AND QUANTITY: 7 PIN
•
FREQUENCY RATING: 300.0 HERTZ MINIMUM AND 3000.0 HERTZ MAXIMUM SINGLE COMPONENT
TECHNICAL CHARACTERISTICS (FLIS)
HAZARDOUS LOCATIONS/ENVIRONMENTAL PROTECTIONMOISTURE RESISTANT
MAXIMUM OPERATING TEMP130.0 CELSIUS DEGC
WINDING SHIELDING METHODINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
PRIMARY TO SECONDARY TURN RATIO1 TO 1 TO 1 SINGLE COMPONENT
IMPEDANCE RATING IN OHMS600.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
INCLOSURE TYPEFULLY INCLOSED
TERMINAL TYPE AND QUANTITY7 PIN
FREQUENCY RATING300.0 HERTZ MINIMUM AND 3000.0 HERTZ MAXIMUM SINGLE COMPONENT
BODY LENGTH0.390 INCHES MAXIMUM IN
RELIABILITY INDICATORNOT ESTABLISHED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
861555R92Interchangeable
interchangeable cross-reference
interchangeable
46276Interchangeable
interchangeable cross-reference
interchangeable
6420407Interchangeable
interchangeable cross-reference
interchangeable
2787Interchangeable
interchangeable cross-reference
interchangeable
NY460-622-4PC518Interchangeable
interchangeable cross-reference
interchangeable
P-2787Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DSF165?
DSF165 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace DSF165?
There are 7 known substitutes for DSF165: 861555R92, 46276, 6420407 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DSF165?
DSF165 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-01-176-3621. 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