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Technical Data Sheet
TX21945 ✓ 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

The CAPACITOR,FIXED,ELECTROLYTIC is a the manufacturer cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include anode_type: PLAIN FOIL, body_style: W/TWIST TAB MTG, TERMINAL(S) ON ONE END, body_length: 3.000 INCHES NOMINAL IN, body_diameter: 1.469 INCHES NOMINAL IN, reliability_indicator: NOT ESTABLISHED, electrical_polarization: POLARIZED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-351-0452, 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 TX21945
NSN: 5910-00-351-0452
FSC: 5910
CAGE: 37942 — YOSEMITE INVESTMENT INC DBA NORTH AMERICAN CAPACITOR CO (USA)
SPECIFICATIONS
anode_typePLAIN FOIL
body_styleW/TWIST TAB MTG, TERMINAL(S) ON ONE END
body_length3.000 INCHES NOMINAL IN
body_diameter1.469 INCHES NOMINAL IN
reliability_indicatorNOT ESTABLISHED
electrical_polarizationPOLARIZED
case_insulation_materialPAPER
nonderated_operating_temp-30.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
terminal_surface_treatmentSOLDER
terminal_type_and_quantity1 TAB, SOLDER LUG
tolerance_range_per_section-10.00 TO 50.00 PERCENT SINGLE SECTION
dc_leakage_at_reference_temp3.200 MICROAMPERES
NSN5910-00-351-0452
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,ELECTROLYTIC TITLE COMPONENT PN TX21945 MFR CAPACITOR,FIXED,ELECTR
KEY FEATURES
BODY LENGTH: 3.000 INCHES NOMINAL IN
BODY STYLE: W/TWIST TAB MTG, TERMINAL(S) ON ONE END
ELECTRICAL POLARIZATION: POLARIZED
NONDERATED OPERATING TEMP: -30.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION: 250.0 DC SINGLE SECTION
TERMINAL SURFACE TREATMENT: SOLDER
CAPACITIVE ELECTRODE MATERIAL: ALUMINUM
DC LEAKAGE AT REFERENCE TEMP: 3.200 MICROAMPERES
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 LENGTH3.000 INCHES NOMINAL IN
BODY STYLEW/TWIST TAB MTG, TERMINAL(S) ON ONE END
ELECTRICAL POLARIZATIONPOLARIZED
NONDERATED OPERATING TEMP-30.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION250.0 DC SINGLE SECTION
TERMINAL SURFACE TREATMENTSOLDER
CAPACITIVE ELECTRODE MATERIALALUMINUM
DC LEAKAGE AT REFERENCE TEMP3.200 MICROAMPERES
CASE INSULATION MATERIALPAPER
EQUIVALENT SERIES RESISTANCE AT REFERENCE TEMP IN OHMS0.35
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
900999-9294Interchangeable
interchangeable cross-reference
interchangeable
M-154AInterchangeable
interchangeable cross-reference
interchangeable
M-154Interchangeable
interchangeable cross-reference
interchangeable
376494C91Interchangeable
interchangeable cross-reference
interchangeable
7901Interchangeable
interchangeable cross-reference
interchangeable
20-22767Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TX21945?
TX21945 is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace TX21945?
There are 7 known substitutes for TX21945: 900999-9294, M-154A, M-154 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TX21945?
TX21945 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-351-0452. This indicates validated use in U.S. government and defense supply chains.
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