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Technical Data Sheet
PartsTable / MRO / 20879
20879 ✓ Verified by PartsTable
Legrand · 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

19 high quality keys for comfortable operation!<br>- Makes data input much easier for notebook users<br>- Great for left handed users as an addition to a standard keyboard<br>- Backspace and '000' keys<br>- Built-in 2 port USB 1.1 hub<br>- Works with any USB equipped PC; not compatible with Macs. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-835-6855, 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→ 20879
NSN: 5910-00-835-6855
FSC: 5910
CAGE: 11837 — ELECTRO SCIENTIFIC INDUSTRIES INC (USA)
SPECIFICATIONS
colorWHITE BACKGROUND
materialPLASTIC PHENOLIC CASE
face_typeOPEN
bezel_typeHINGED
body_styleW/O MTG FACILITIES, AXIAL TERMINALS
scale_nameANY ACCEPTABLE
body_length0.438 INCHES NOMINAL IN
scale_range+12.0 TO 24.0 HOUR
crystal_typeANY ACCEPTABLE
body_diameter0.172 INCHES NOMINAL IN
luminous_dialNOT INCLUDED
terminal_length2.125 INCHES NOMINAL IN
NSN5910-00-835-6855
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Legrand CAPACITOR,FIXED,PLASTIC DIELECTR TITLE COMPONENT PN 20879 MFR Legrand CAPACITOR,FIXED,PLASTI
KEY FEATURES
•
TERMINAL SURFACE TREATMENT: SOLDER
•
TERMINAL TYPE AND QUANTITY: 2 UNINSULATED WIRE LEAD
•
BODY LENGTH: 0.438 INCHES NOMINAL IN
•
NONDERATED OPERATING TEMP: -55.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
•
DIELECTRIC MATERIAL: PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER)
•
INTERNAL ELECTRICAL CONNECTION TYPE: EXTENDED FOIL
•
INSULATION RESISTANCE AT REFERENCE TEMP: 100000.0 MEGOHMS
•
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)
TERMINAL SURFACE TREATMENTSOLDER
TERMINAL TYPE AND QUANTITY2 UNINSULATED WIRE LEAD
BODY LENGTH0.438 INCHES NOMINAL IN
NONDERATED OPERATING TEMP-55.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
DIELECTRIC MATERIALPLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER)
INTERNAL ELECTRICAL CONNECTION TYPEEXTENDED FOIL
INSULATION RESISTANCE AT REFERENCE TEMP100000.0 MEGOHMS
SCHEMATIC DIAGRAM DESIGNATORNO COMMON OR GROUNDED ELECTRODE(S)
TOLERANCE RANGE PER SECTION-5.00 TO 5.00 PERCENT SINGLE SECTION
MATERIALPLASTIC CASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
WMF2D33Interchangeable
interchangeable cross-reference
interchangeable
120001Interchangeable
interchangeable cross-reference
interchangeable
55-002-002Interchangeable
interchangeable cross-reference
interchangeable
2624801Interchangeable
interchangeable cross-reference
interchangeable
PH505GInterchangeable
interchangeable cross-reference
interchangeable
QQA200-11Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20879?
20879 is a CAPACITOR,FIXED,PLASTIC DIELECTR manufactured by Legrand. It is classified as a MRO (MRO_GENERAL).
What parts can replace 20879?
There are 27 known substitutes for 20879: WMF2D33, 120001, 55-002-002 and 24 more. Substitute compatibility should be verified for your specific system.
Is 20879 still available?
20879 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