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Technical Data Sheet
PartsTable / MRO / 331-052X5R0-681K
331-052X5R0-681K ✓ 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,FIXED,CERAMIC DIELECTR. Key specifications include body_style: W/O MTG FACILITIES, RADIAL TERMINALS, body_length: 0.430 INCHES NOMINAL IN, body_diameter: 0.225 INCHES NOMINAL IN, reliability_indicator: NOT ESTABLISHED, nonderated_operating_temp: -55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC, terminal_height_from_body: 1.250 INCHES MINIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-851-9299, 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→ 331-052X5R0-681K
NSN: 5910-00-851-9299
FSC: 5910
CAGE: 59660 — TUSONIX, LLC (USA)
SPECIFICATIONS
body_styleW/O MTG FACILITIES, RADIAL TERMINALS
body_length0.430 INCHES NOMINAL IN
body_diameter0.225 INCHES NOMINAL IN
reliability_indicatorNOT ESTABLISHED
nonderated_operating_temp-55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
terminal_height_from_body1.250 INCHES MINIMUM IN
terminal_surface_treatmentSOLDER
terminal_type_and_quantity2 UNINSULATED WIRE LEAD
specification/standard_data81349-MIL-C-11015/2 GOVERNMENT SPECIFICATION
tolerance_range_per_section-10.00 TO 10.00 PERCENT SINGLE SECTION
schematic_diagram_designatorNO COMMON OR GROUNDED ELECTRODE(S)
capacitance_value_per_section680.000 PICOFARADS SINGLE SECTION
NSN5910-00-851-9299
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,CERAMIC DIELECTR TITLE COMPONENT PN 331-052X5R0-681K MFR CAPACITOR,FIXED,CERAMI
KEY FEATURES
•
VOLTAGE TEMP LIMITS PER SECTION IN PERCENT CAPACITANCE CHANGE: -25.0 TO 15.0 WITH RATED VOLTAGE APPLIED SINGLE SECTION
•
BODY LENGTH: 0.430 INCHES NOMINAL IN
•
CAPACITANCE VALUE PER SECTION: 680.000 PICOFARADS SINGLE SECTION
•
TERMINAL HEIGHT FROM BODY: 1.250 INCHES MINIMUM IN
•
BODY DIAMETER: 0.225 INCHES NOMINAL IN
•
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION: 500.0 DC SINGLE SECTION
•
NONDERATED OPERATING TEMP: -55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
•
SCHEMATIC DIAGRAM DESIGNATOR: NO COMMON OR GROUNDED ELECTRODE(S)
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)
VOLTAGE TEMP LIMITS PER SECTION IN PERCENT CAPACITANCE CHANGE-25.0 TO 15.0 WITH RATED VOLTAGE APPLIED SINGLE SECTION
BODY LENGTH0.430 INCHES NOMINAL IN
CAPACITANCE VALUE PER SECTION680.000 PICOFARADS SINGLE SECTION
TERMINAL HEIGHT FROM BODY1.250 INCHES MINIMUM IN
BODY DIAMETER0.225 INCHES NOMINAL IN
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION500.0 DC SINGLE SECTION
NONDERATED OPERATING TEMP-55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
SCHEMATIC DIAGRAM DESIGNATORNO COMMON OR GROUNDED ELECTRODE(S)
TOLERANCE RANGE PER SECTION-10.00 TO 10.00 PERCENT SINGLE SECTION
INSULATION RESISTANCE AT REFERENCE TEMP20000.0 MEGOHMS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
MIL-C-11015/2Interchangeable
interchangeable cross-reference
interchangeable
CK22AX391KInterchangeable
interchangeable cross-reference
interchangeable
301X5U0391MInterchangeable
interchangeable cross-reference
interchangeable
MILC11015Interchangeable
interchangeable cross-reference
interchangeable
CK22W221ZInterchangeable
interchangeable cross-reference
interchangeable
CK22W681ZInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 331-052X5R0-681K?
331-052X5R0-681K is a CAPACITOR,FIXED,CERAMIC DIELECTR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 331-052X5R0-681K?
There are 23 known substitutes for 331-052X5R0-681K: MIL-C-11015/2, CK22AX391K, 301X5U0391M and 20 more. Substitute compatibility should be verified for your specific system.
Is 331-052X5R0-681K still available?
331-052X5R0-681K is currently cancelled.
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Last verified: July 2026