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Technical Data Sheet
PartsTable / COMPONENT / 677-1242-000
677-1242-000 ✓ 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: 1.500 INCHES NOMINAL IN, inclosure_type: HERMETICALLY SEALED, mounting_method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP, frequency_rating: 300.0 HERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT, special_features: CASE METAL MATERIAL, transformer_function: INPUT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-979-1180, 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
677-1242-000
NSN: 5950-00-979-1180
FSC: 5950
CAGE: 73831 — HAMMOND MFG CO LTD (CAN)
SPECIFICATIONS
body_length1.500 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALED
mounting_methodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
frequency_rating300.0 HERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
special_featuresCASE METAL MATERIAL
transformer_functionINPUT
body_outside_diameter0.953 INCHES NOMINAL IN
reliability_indicatorNOT ESTABLISHED
mounting_hole_diameter0.125 INCHES NOMINAL SINGLE GROUP IN
impedance_rating_in_ohms100000.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
winding_operating_current50.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
mounting_facility_quantity2 SINGLE GROUP
NSN5950-00-979-1180
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN 677-1242-000 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
TERMINAL TYPE AND QUANTITY: 5 SOLDER STUD
•
INCLOSURE TYPE: HERMETICALLY SEALED
•
TRANSFORMER FUNCTION: INPUT
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
•
WINDING OPERATING CURRENT: 50.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
•
MOUNTING FACILITY QUANTITY: 2 SINGLE GROUP
•
IMPEDANCE RATING IN OHMS: 82.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
•
MOUNTING HOLE DIAMETER: 0.125 INCHES NOMINAL SINGLE GROUP IN
TECHNICAL CHARACTERISTICS (FLIS)
TERMINAL TYPE AND QUANTITY5 SOLDER STUD
INCLOSURE TYPEHERMETICALLY SEALED
TRANSFORMER FUNCTIONINPUT
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
WINDING OPERATING CURRENT50.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
MOUNTING FACILITY QUANTITY2 SINGLE GROUP
IMPEDANCE RATING IN OHMS82.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
MOUNTING HOLE DIAMETER0.125 INCHES NOMINAL SINGLE GROUP IN
IMPEDANCE RATING IN OHMS100000.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
BODY OUTSIDE DIAMETER0.953 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
150 21Interchangeable
interchangeable cross-reference
interchangeable
1340Interchangeable
interchangeable cross-reference
interchangeable
13321Interchangeable
interchangeable cross-reference
interchangeable
FMF0-004Interchangeable
interchangeable cross-reference
interchangeable
N765455Interchangeable
interchangeable cross-reference
interchangeable
A-A-2907Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 677-1242-000?
677-1242-000 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace 677-1242-000?
There are 8 known substitutes for 677-1242-000: 150 21, 1340, 13321 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 677-1242-000?
677-1242-000 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-979-1180. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026