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Technical Data Sheet
PartsTable / COMPONENT / ESL63859
ESL63859 ✓ 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,POWER is a the manufacturer industrial component. Key specifications include body_width: 9.000 INCHES NOMINAL IN, body_height: 9.187 INCHES NOMINAL IN, body_length: 11.250 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED, mounting_method: FLANGE SINGLE GROUP, frequency_rating: 60.0 HERTZ NOMINAL SINGLE COMPONENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-647-7715, 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
ESL63859
NSN: 5950-00-647-7715
FSC: 5950
CAGE: 64959 — AMERICAN TELEPHONE AND TELEGRAPH CO (USA)
SPECIFICATIONS
body_width9.000 INCHES NOMINAL IN
body_height9.187 INCHES NOMINAL IN
body_length11.250 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
mounting_methodFLANGE SINGLE GROUP
frequency_rating60.0 HERTZ NOMINAL SINGLE COMPONENT
winding_power_rating2.9 KILOVOLT-AMPERES SINGLE COMPONENT SINGLE SECONDARY
winding_shielding_methodINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
winding_operating_current22.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
winding_operating_voltage14.00 AC VOLTS NOMINAL AND 118.00 AC VOLTS NOMINAL AND 122.00 AC VOLTS NOMINAL AND 126.00 AC VOLTS NOMINAL AND 130.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
mounting_facility_quantity4 SINGLE GROUP
terminal_type_and_quantity6 TAB, SOLDER LUG
NSN5950-00-647-7715
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER TITLE COMPONENT PN ESL63859 MFR TRANSFORMER,POWER
KEY FEATURES
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
•
BODY HEIGHT: 9.187 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 8.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
BODY WIDTH: 9.000 INCHES NOMINAL IN
•
MOUNTING FACILITY QUANTITY: 4 SINGLE GROUP
•
FREQUENCY RATING: 60.0 HERTZ NOMINAL SINGLE COMPONENT
•
BODY LENGTH: 11.250 INCHES NOMINAL IN
•
INCLOSURE TYPE: FULLY INCLOSED
TECHNICAL CHARACTERISTICS (FLIS)
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
BODY HEIGHT9.187 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH8.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
BODY WIDTH9.000 INCHES NOMINAL IN
MOUNTING FACILITY QUANTITY4 SINGLE GROUP
FREQUENCY RATING60.0 HERTZ NOMINAL SINGLE COMPONENT
BODY LENGTH11.250 INCHES NOMINAL IN
INCLOSURE TYPEFULLY INCLOSED
INPUT-OUTPUT PHASE RELATIONSHIPSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
WINDING SHIELDING METHODINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
G355639Interchangeable
interchangeable cross-reference
interchangeable
8787Interchangeable
interchangeable cross-reference
interchangeable
27591Interchangeable
interchangeable cross-reference
interchangeable
K-2990Interchangeable
interchangeable cross-reference
interchangeable
30864Interchangeable
interchangeable cross-reference
interchangeable
392811Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ESL63859?
ESL63859 is a TRANSFORMER,POWER.
What parts can replace ESL63859?
There are 15 known substitutes for ESL63859: G355639, 8787, 27591 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ESL63859?
ESL63859 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-647-7715. 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