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Technical Data Sheet
MX3631U ✓ 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,FIXED,PAPER DIELECTRIC. Key specifications include usage_design: USED TO DETECT RADIO FREQUENCY IN WAVEGUIDES, detector_type: WIRE ANTENNA, overall_length: 6.250 INCHES NOMINAL IN, frequency_rating: 0.00395 GIGAHERTZ MINIMUM AND 40.000 GIGAHERTZ MAXIMUM, overall_diameter: 2.000 INCHES NOMINAL IN, body_surface_treatment: NICKEL PLATED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-892-5579, 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
MX3631U
NSN: 5985-00-892-5579
FSC: 5985
CAGE: 80058 — JOINT ELECTRONICS TYPE DESIGNATION SYSTEM (USA)
SPECIFICATIONS
usage_designUSED TO DETECT RADIO FREQUENCY IN WAVEGUIDES
detector_typeWIRE ANTENNA
overall_length6.250 INCHES NOMINAL IN
frequency_rating0.00395 GIGAHERTZ MINIMUM AND 40.000 GIGAHERTZ MAXIMUM
overall_diameter2.000 INCHES NOMINAL IN
body_surface_treatmentNICKEL PLATED
end_item_identificationMODEL NO. 440A A
impedance_rating_in_ohms500.0 NOMINAL
NSN5985-00-892-5579
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PAPER DIELECTRIC TITLE COMPONENT PN MX3631U MFR CAPACITOR,FIXED,PAPER
KEY FEATURES
IMPEDANCE RATING IN OHMS: 500.0 NOMINAL
OVERALL DIAMETER: 2.000 INCHES NOMINAL IN
USAGE DESIGN: USED TO DETECT RADIO FREQUENCY IN WAVEGUIDES
FREQUENCY RATING: 0.00395 GIGAHERTZ MINIMUM AND 40.000 GIGAHERTZ MAXIMUM
DETECTOR TYPE: WIRE ANTENNA
BODY SURFACE TREATMENT: NICKEL PLATED
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)
IMPEDANCE RATING IN OHMS500.0 NOMINAL
OVERALL LENGTH6.250 INCHES NOMINAL IN
OVERALL DIAMETER2.000 INCHES NOMINAL IN
END ITEM IDENTIFICATIONMODEL NO. 440A A
USAGE DESIGNUSED TO DETECT RADIO FREQUENCY IN WAVEGUIDES
FREQUENCY RATING0.00395 GIGAHERTZ MINIMUM AND 40.000 GIGAHERTZ MAXIMUM
DETECTOR TYPEWIRE ANTENNA
BODY SURFACE TREATMENTNICKEL PLATED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
142BInterchangeable
interchangeable cross-reference
interchangeable
A148796-142BInterchangeable
interchangeable cross-reference
interchangeable
442CInterchangeable
interchangeable cross-reference
interchangeable
442BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MX3631U?
MX3631U is a CAPACITOR,FIXED,PAPER DIELECTRIC.
What parts can replace MX3631U?
There are 4 known substitutes for MX3631U: 142B, A148796-142B, 442C and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MX3631U?
MX3631U is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-892-5579. This indicates validated use in U.S. government and defense supply chains.
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