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Technical Data Sheet
PartsTable / COMPONENT / RF0143B
RF0143B ✓ 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,PLASTIC DIELECTR. Key specifications include unit_type: TRANSMISSION LINE, design_type: UNIDIRECTIONAL, usage_design: MAIN LINE TERMINAL FITTING, overall_width: 1.250 INCHES NOMINAL IN, overall_height: 2.688 INCHES NOMINAL IN, overall_length: 6.219 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-617-3540, 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
RF0143B
NSN: 5985-00-617-3540
FSC: 5985
CAGE: 94375 — LAX ELECTRONICS, INC. DBA AUTOMATIC CONNECTOR DIV AUTOMATIC CONNECTOR (USA)
SPECIFICATIONS
unit_typeTRANSMISSION LINE
design_typeUNIDIRECTIONAL
usage_designMAIN LINE TERMINAL FITTING
overall_width1.250 INCHES NOMINAL IN
overall_height2.688 INCHES NOMINAL IN
overall_length6.219 INCHES NOMINAL IN
identifying_numberTERMINAL FITTING TYPE NO. UG218/U
power_loss_in_decibels20.0
radio_frequency_rating225.0 MEGAHERTZ MINIMUM AND 400.0 MEGAHERTZ MAXIMUM
terminal_fitting_controlling_agencyMIL
NSN5985-00-617-3540
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PLASTIC DIELECTR TITLE COMPONENT PN RF0143B MFR CAPACITOR,FIXED,PLASTI
KEY FEATURES
•
UNIT TYPE: TRANSMISSION LINE
•
TERMINAL FITTING CONTROLLING AGENCY: MIL
•
RADIO FREQUENCY RATING: 225.0 MEGAHERTZ MINIMUM AND 400.0 MEGAHERTZ MAXIMUM
•
POWER LOSS IN DECIBELS: 20.0
•
DESIGN TYPE: UNIDIRECTIONAL
•
IDENTIFYING NUMBER: TERMINAL FITTING TYPE NO. UG218/U
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)
OVERALL LENGTH6.219 INCHES NOMINAL IN
OVERALL HEIGHT2.688 INCHES NOMINAL IN
UNIT TYPETRANSMISSION LINE
TERMINAL FITTING CONTROLLING AGENCYMIL
RADIO FREQUENCY RATING225.0 MEGAHERTZ MINIMUM AND 400.0 MEGAHERTZ MAXIMUM
POWER LOSS IN DECIBELS20.0
DESIGN TYPEUNIDIRECTIONAL
IDENTIFYING NUMBERTERMINAL FITTING TYPE NO. UG218/U
USAGE DESIGNMAIN LINE TERMINAL FITTING
OVERALL WIDTH1.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
SG053B-17-QInterchangeable
interchangeable cross-reference
interchangeable
2364Interchangeable
interchangeable cross-reference
interchangeable
41PC17TSQ4Interchangeable
interchangeable cross-reference
interchangeable
656Interchangeable
interchangeable cross-reference
interchangeable
5728Interchangeable
interchangeable cross-reference
interchangeable
605717Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RF0143B?
RF0143B is a CAPACITOR,FIXED,PLASTIC DIELECTR.
What parts can replace RF0143B?
There are 14 known substitutes for RF0143B: SG053B-17-Q, 2364, 41PC17TSQ4 and 11 more. Substitute compatibility should be verified for your specific system.
Is RF0143B still available?
RF0143B is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026