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MIL-T-27/197 — Technical Data Sheet

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— · 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: 1.812 INCHES NOMINAL IN, body_height: 2.500 INCHES NOMINAL IN, body_length: 1.812 INCHES NOMINAL IN, inclosure_type: HERMETICALLY SEALED, overall_height: 2.515 INCHES NOMINAL IN, mounting_method: FLANGE AND UNTHREADED 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 5950-01-102-7706, 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
MIL-T-27/197
NSN: 5950-01-102-7706
FSC: 5950
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
body_width1.812 INCHES NOMINAL IN
body_height2.500 INCHES NOMINAL IN
body_length1.812 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALED
overall_height2.515 INCHES NOMINAL IN
mounting_methodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
frequency_rating75.0 HERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
body_outside_diameter1.625 INCHES MAXIMUM IN
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp105.0 CELSIUS DEGC
mounting_hole_diameter0.144 INCHES NOMINAL SINGLE GROUP IN
impedance_rating_in_ohms20.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
NSN5950-01-102-7706
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN MIL-T-27/197 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
BODY HEIGHT: 2.250 INCHES NOMINAL IN
•
IMPEDANCE RATING IN OHMS: 200.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
•
TEST DATA DOCUMENT: 81349-MIL-T-27 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
•
BODY WIDTH: 1.625 INCHES MAXIMUM IN
•
MOUNTING HOLE DIAMETER: 0.144 INCHES NOMINAL SINGLE GROUP IN
•
MAXIMUM TRANSFORMER POWER RATING: 5000.0 MILLIWATTS SINGLE COMPONENT
•
MOUNTING METHOD: UNTHREADED HOLE(S) SINGLE GROUP
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH: 1.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY HEIGHT2.250 INCHES NOMINAL IN
IMPEDANCE RATING IN OHMS200.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
TEST DATA DOCUMENT81349-MIL-T-27 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
BODY WIDTH1.625 INCHES MAXIMUM IN
MOUNTING HOLE DIAMETER0.144 INCHES NOMINAL SINGLE GROUP IN
MAXIMUM TRANSFORMER POWER RATING5000.0 MILLIWATTS SINGLE COMPONENT
MOUNTING METHODUNTHREADED HOLE(S) SINGLE GROUP
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH1.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
TERMINAL TYPE AND QUANTITY7 SOLDER STUD
BODY LENGTH1.625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
M27/197-08Interchangeable
interchangeable cross-reference
interchangeable
M27/197-02Interchangeable
interchangeable cross-reference
interchangeable
G289958-1Interchangeable
interchangeable cross-reference
interchangeable
H25Interchangeable
interchangeable cross-reference
interchangeable
M27/197-01Interchangeable
interchangeable cross-reference
interchangeable
H21Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-T-27/197?
MIL-T-27/197 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace MIL-T-27/197?
There are 15 known substitutes for MIL-T-27/197: M27/197-08, M27/197-02, G289958-1 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-T-27/197?
MIL-T-27/197 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-01-102-7706. This indicates validated use in U.S. government and defense supply chains.
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Last verified: September 2026