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Technical Data Sheet
W4789-20R ✓ 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 REACTOR is a the manufacturer industrial component. Key specifications include body_width: 2.062 INCHES NOMINAL IN, body_height: 3.125 INCHES NOMINAL IN, body_length: 2.312 INCHES NOMINAL IN, rating_method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING, inclosure_type: HERMETICALLY SEALED, inductance_type: FIXED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-899-9349, 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
W4789-20R
NSN: 5950-00-899-9349
FSC: 5950
CAGE: 65180 — UNISYS CORP SYSTEMS DEVELOPMENT (USA)
SPECIFICATIONS
body_width2.062 INCHES NOMINAL IN
body_height3.125 INCHES NOMINAL IN
body_length2.312 INCHES NOMINAL IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
inclosure_typeHERMETICALLY SEALED
inductance_typeFIXED
mounting_methodTHREADED STUD(S) SINGLE GROUP
frequency_rating100.0 HERTZ NOMINAL SINGLE COMPONENT
winding_quantity1 SINGLE COMPONENT
inductance_rating17.00 HENRY NOMINAL SINGLE COMPONENT SINGLE WINDING
nominal_thread_size0.138 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
NSN5950-00-899-9349
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available REACTOR TITLE COMPONENT PN W4789-20R MFR REACTOR
KEY FEATURES
FREQUENCY RATING: 100.0 HERTZ NOMINAL SINGLE COMPONENT
MOUNTING FACILITY QUANTITY: 4 SINGLE GROUP
NOMINAL THREAD SIZE: 0.138 INCHES SINGLE GROUP IN
WINDING QUANTITY: 1 SINGLE COMPONENT
INCLOSURE TYPE: HERMETICALLY SEALED
TERMINAL TYPE AND QUANTITY: 2 SOLDER STUD
INDUCTANCE RATING: 17.00 HENRY NOMINAL SINGLE COMPONENT SINGLE WINDING
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 1.438 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
TECHNICAL CHARACTERISTICS (FLIS)
FREQUENCY RATING100.0 HERTZ NOMINAL SINGLE COMPONENT
MOUNTING FACILITY QUANTITY4 SINGLE GROUP
NOMINAL THREAD SIZE0.138 INCHES SINGLE GROUP IN
WINDING QUANTITY1 SINGLE COMPONENT
INCLOSURE TYPEHERMETICALLY SEALED
TERMINAL TYPE AND QUANTITY2 SOLDER STUD
INDUCTANCE RATING17.00 HENRY NOMINAL SINGLE COMPONENT SINGLE WINDING
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH1.438 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
RELIABILITY INDICATORNOT ESTABLISHED
INDUCTANCE TYPEFIXED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
374034C91Interchangeable
interchangeable cross-reference
interchangeable
79Z40Interchangeable
interchangeable cross-reference
interchangeable
90092Interchangeable
interchangeable cross-reference
interchangeable
319.17Interchangeable
interchangeable cross-reference
interchangeable
31917Interchangeable
interchangeable cross-reference
interchangeable
ZAX4031917Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is W4789-20R?
W4789-20R is a REACTOR.
What parts can replace W4789-20R?
There are 6 known substitutes for W4789-20R: 374034C91, 79Z40, 90092 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for W4789-20R?
W4789-20R is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-899-9349. This indicates validated use in U.S. government and defense supply chains.
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