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Technical Data Sheet
29181 ✓ 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

CAPACITOR,VARIABLE,CERAMIC DIELE. Key specifications include material: ALUMINUM ALLOY 7075 RETAINER, duty_type: CONTINUOUS, construction: ONE-PIECE, thread_class: 2B FIRST MOUNTING FACILITY, overall_width: 1.620 INCHES NOMINAL IN, overall_height: 1.560 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 5945-00-198-9927, 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
29181
NSN: 5945-00-198-9927
FSC: 5945
CAGE: 99993 — DEPARTMENT OF THE NAVY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075 RETAINER
duty_typeCONTINUOUS
constructionONE-PIECE
thread_class2B FIRST MOUNTING FACILITY
coil_quantity1
overall_width1.620 INCHES NOMINAL IN
overall_height1.560 INCHES NOMINAL IN
overall_length2.900 INCHES NOMINAL IN
outside_diameter0.375 INCHES NOMINAL IN
winding_quantity1
surface_treatmentANODIZE RETAINER
frequency_in_hertz60.0 NOMINAL
NSN5945-00-198-9927
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,CERAMIC DIELE TITLE COMPONENT PN 29181 MFR CAPACITOR,VARIABLE,CER
KEY FEATURES
WINDING QUANTITY: 1
NONPILE-UP AUXILIARY CONTACT ARRANGEMENT: 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
WINDING DC RESISTANCE RATING: 530.0 OHMS NOMINAL SINGLE WINDING
MAIN CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE: 4.0 AMPERES AC RESISTIVE LOAD
DUTY TYPE: CONTINUOUS
UNTHREADED MOUNTING HOLE DIAMETER: 0.147 INCHES NOMINAL SECOND MOUNTING FACILITY IN
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)
WINDING QUANTITY1
NONPILE-UP AUXILIARY CONTACT ARRANGEMENT1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
WINDING DC RESISTANCE RATING530.0 OHMS NOMINAL SINGLE WINDING
MAIN CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE4.0 AMPERES AC RESISTIVE LOAD
OVERALL LENGTH2.900 INCHES NOMINAL IN
DUTY TYPECONTINUOUS
UNTHREADED MOUNTING HOLE DIAMETER0.147 INCHES NOMINAL SECOND MOUNTING FACILITY IN
OVERALL HEIGHT1.560 INCHES NOMINAL IN
MOUNTING FACILITY TYPE AND QUANTITY4 UNTHREADED HOLE(S) SECOND MOUNTING FACILITY
NOMINAL OPERATING CURRENT RATING AND TYPE60.0 MILLIAMPERES AC SINGLE WINDING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
1P77573AInterchangeable
interchangeable cross-reference
interchangeable
2520PL0811335Interchangeable
interchangeable cross-reference
interchangeable
3-176Interchangeable
interchangeable cross-reference
interchangeable
AN3102A40-2PInterchangeable
interchangeable cross-reference
interchangeable
668416-02-1Interchangeable
interchangeable cross-reference
interchangeable
2918-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 29181?
29181 is a CAPACITOR,VARIABLE,CERAMIC DIELE.
What parts can replace 29181?
There are 13 known substitutes for 29181: 1P77573A, 2520PL0811335, 3-176 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 29181?
29181 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-00-198-9927. This indicates validated use in U.S. government and defense supply chains.
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