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Technical Data Sheet
C646 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
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 CAPACITOR,ELECTRICA is a the manufacturer cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include body_length: 1.300 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, mounting_method: PLUG-IN AND UNTHREADED HOLE(S) SINGLE GROUP, frequency_rating: 380.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT, special_features: PINS NUMBER 7 AND 9 ON NUMBER 2 SECONDARY HAVE AND O/P OF 32 VRMS AT 300 MA, body_outside_diameter: 2.250 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-574-3658, 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
MRO MRO_GENERAL C646
NSN: 5910-00-574-3658
FSC: 5910
CAGE: 04099 — CCI CAPCO, LLC DBA VALOR TACTICAL INNOVATION (USA)
SPECIFICATIONS
body_length1.300 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
mounting_methodPLUG-IN AND UNTHREADED HOLE(S) SINGLE GROUP
frequency_rating380.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT
special_featuresPINS NUMBER 7 AND 9 ON NUMBER 2 SECONDARY HAVE AND O/P OF 32 VRMS AT 300 MA
body_outside_diameter2.250 INCHES MAXIMUM IN
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp105.0 CELSIUS DEGC
mounting_hole_diameter0.116 INCHES NOMINAL SINGLE GROUP IN
winding_operating_current2700.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
winding_operating_voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
mounting_facility_quantity1 SINGLE GROUP
NSN5910-00-574-3658
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,ELECTRICA TITLE COMPONENT PN C646 MFR CAPACITOR,ELECTRICA
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
42138Interchangeable
interchangeable cross-reference
interchangeable
C646Interchangeable
interchangeable cross-reference
interchangeable
TM-1764Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C646?
C646 is a CAPACITOR,ELECTRICA. It is classified as a MRO (MRO_GENERAL).
What parts can replace C646?
There are 3 known substitutes for C646: 42138, C646, TM-1764. Substitute compatibility should be verified for your specific system.
What is the NSN for C646?
C646 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-574-3658. This indicates validated use in U.S. government and defense supply chains.
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