PartsTable
Technical Data Sheet
391-9 ✓ 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,MICA DIELECTRIC. Key specifications include color: BLACK, length: 1.187 INCHES NOMINAL IN, material: PLASTIC POLYCARBONATE, base_style: TWO CONTRACT LUGS (NOT CONTACT), body_style: W/O MTG HOLE(S)/SLOT(S), TERMINAL(S) ON ONE SURFACE, body_width: 2.250 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 5950-00-021-8004, 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 391-9
NSN: 5950-00-021-8004
FSC: 5950
CAGE: 01961 — PULSE ENGINEERING INC (USA)
SPECIFICATIONS
colorBLACK
length1.187 INCHES NOMINAL IN
materialPLASTIC POLYCARBONATE
base_styleTWO CONTRACT LUGS (NOT CONTACT)
body_styleW/O MTG HOLE(S)/SLOT(S), TERMINAL(S) ON ONE SURFACE
body_width2.250 INCHES NOMINAL IN
bulb_stylePAR (PARABOLIC, ALUMINIZED REFLECTOR)
slot_depth0.200 INCHES SINGLE END IN
slot_width0.052 INCHES SINGLE END IN
body_height3.469 INCHES NOMINAL IN
body_length2.562 INCHES NOMINAL IN
swage_depth0.070 INCHES IN
NSN5950-00-021-8004
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,MICA DIELECTRIC TITLE COMPONENT PN 391-9 MFR CAPACITOR,FIXED,MICA D
KEY FEATURES
BODY OUTSIDE DIAMETER: 1.313 INCHES NOMINAL IN
FREQUENCY RATING: 2.0 MEGAHERTZ NOMINAL SINGLE COMPONENT
COIL FORM TYPE: SOLID SINGLE COMPONENT
MOUNTING METHOD: PLUG-IN SINGLE GROUP
RATING METHOD: ELECTRICAL SINGLE COMPONENT SINGLE PRIMARY
RELIABILITY INDICATOR: NOT ESTABLISHED
BODY LENGTH: 0.500 INCHES NOMINAL IN
INDUCTANCE RATING: 13.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY
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)
BODY OUTSIDE DIAMETER1.313 INCHES NOMINAL IN
FREQUENCY RATING2.0 MEGAHERTZ NOMINAL SINGLE COMPONENT
COIL FORM TYPESOLID SINGLE COMPONENT
MOUNTING METHODPLUG-IN SINGLE GROUP
RATING METHODELECTRICAL SINGLE COMPONENT SINGLE PRIMARY
RELIABILITY INDICATORNOT ESTABLISHED
BODY LENGTH0.500 INCHES NOMINAL IN
INDUCTANCE RATING13.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY
INCLOSURE TYPEFULLY INCLOSED
TERMINAL TYPE AND QUANTITY5 PIN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
CM56B101KInterchangeable
interchangeable cross-reference
interchangeable
JANC5Interchangeable
interchangeable cross-reference
interchangeable
3919Interchangeable
interchangeable cross-reference
interchangeable
535885-1Interchangeable
interchangeable cross-reference
interchangeable
3919-7Interchangeable
interchangeable cross-reference
interchangeable
3919B7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 391-9?
391-9 is a CAPACITOR,FIXED,MICA DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 391-9?
There are 21 known substitutes for 391-9: CM56B101K, JANC5, 3919 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 391-9?
391-9 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-021-8004. This indicates validated use in U.S. government and defense supply chains.
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