PartsTable
Technical Data Sheet
556146-388 ✓ 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

CAPACITOR,VARIABLE,GLASS DIELECT. Key specifications include body_style: PISTON, body_length: 0.312 INCHES NOMINAL IN, inclosure_type: ENCAPSULATED, overall_length: 0.457 INCHES NOMINAL IN, terminal_length: 1.000 INCHES MINIMUM IN, overall_diameter: 0.312 INCHES NOMINAL 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 5910-00-451-3189, 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 556146-388
NSN: 5910-00-451-3189
FSC: 5910
CAGE: 88869 — EATON CORP ELECTRONIC INSTRUMENTATION DIV LOS ANGELES PLANT (USA)
SPECIFICATIONS
body_stylePISTON
body_length0.312 INCHES NOMINAL IN
inclosure_typeENCAPSULATED
overall_length0.457 INCHES NOMINAL IN
terminal_length1.000 INCHES MINIMUM IN
overall_diameter0.312 INCHES NOMINAL IN
terminal_diameter0.016 INCHES NOMINAL IN
terminal_locationCIRCUMFERENCE 180 DEGREES APART ON END OPPOSITE ADJUSTMENT CONTROL PERPENDICULAR
nonderated_operating_temp-55.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
terminal_type_and_quantity2 WIRE LEAD
capacitance_range_in_picofarads+0.8 TO 4.5 SINGLE SECTION
quality_factor_at_25_deg_celsius500.0
NSN5910-00-451-3189
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,GLASS DIELECT TITLE COMPONENT PN 556146-388 MFR CAPACITOR,VARIABLE,GLA
KEY FEATURES
ADJUSTMENT DEVICE DRIVE TYPE AND QUANTITY: 1 SLOTTED SCREW
MOUNTING FACILITY TYPE AND QUANTITY: 2 TERMINAL
TEMP COEFFICIENT OF CAPACITANCE RANGE IN PPM PER DEG CELSIUS: -50.0 TO 50.0 SINGLE SECTION
INSULATION DC RESISTANCE AT 25 DEG CELSIUS: 1000.0 GIGOHMS
INCLOSURE TYPE: ENCAPSULATED
TERMINAL TYPE AND QUANTITY: 2 WIRE LEAD
BODY STYLE: PISTON
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
TECHNICAL CHARACTERISTICS (FLIS)
ADJUSTMENT DEVICE DRIVE TYPE AND QUANTITY1 SLOTTED SCREW
MOUNTING FACILITY TYPE AND QUANTITY2 TERMINAL
TEMP COEFFICIENT OF CAPACITANCE RANGE IN PPM PER DEG CELSIUS-50.0 TO 50.0 SINGLE SECTION
INSULATION DC RESISTANCE AT 25 DEG CELSIUS1000.0 GIGOHMS
INCLOSURE TYPEENCAPSULATED
TERMINAL TYPE AND QUANTITY2 WIRE LEAD
BODY STYLEPISTON
OVERALL LENGTH0.457 INCHES NOMINAL IN
OVERALL DIAMETER0.312 INCHES NOMINAL IN
TERMINAL DIAMETER0.016 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
1088Interchangeable
interchangeable cross-reference
interchangeable
V-659XInterchangeable
interchangeable cross-reference
interchangeable
V-1454Interchangeable
interchangeable cross-reference
interchangeable
V1251Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 556146-388?
556146-388 is a CAPACITOR,VARIABLE,GLASS DIELECT. It is classified as a MRO (MRO_GENERAL).
What parts can replace 556146-388?
There are 4 known substitutes for 556146-388: 1088, V-659X, V-1454 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 556146-388?
556146-388 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-451-3189. This indicates validated use in U.S. government and defense supply chains.
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