PartsTable
Technical Data Sheet
M21-501M ✓ 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 body_style: BUTTON TYPE, W/MTG TABS, body_length: 0.060 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN, body_diameter: 0.443 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN, terminal_length: 0.245 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN, reliability_indicator: NOT ESTABLISHED, nonderated_operating_temp: -55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-686-9120, 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 M21-501M
NSN: 5910-00-686-9120
FSC: 5910
CAGE: 06141 — L3 AVIATION PRODUCTS, INC. DBA L3 TECHNOLOGIES (USA)
SPECIFICATIONS
body_styleBUTTON TYPE, W/MTG TABS
body_length0.060 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
body_diameter0.443 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN
terminal_length0.245 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN
reliability_indicatorNOT ESTABLISHED
nonderated_operating_temp-55.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
terminal_type_and_quantity1 TAB, SOLDER LUG
tolerance_range_per_section-20.00 TO 20.00 PERCENT SINGLE SECTION
schematic_diagram_designatorELECTRODE(S) GROUNDED TO CASE
capacitance_value_per_section500.000 PICOFARADS SINGLE SECTION
insulation_resistance_at_reference_temp7500.0 MEGOHMS
nonderated_continuous_voltage_rating_and_type_per_section500.0 DC SINGLE SECTION
NSN5910-00-686-9120
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,MICA DIELECTRIC TITLE COMPONENT PN M21-501M MFR CAPACITOR,FIXED,MICA D
KEY FEATURES
INSULATION RESISTANCE AT REFERENCE TEMP: 7500.0 MEGOHMS
TERMINAL LENGTH: 0.245 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN
BODY DIAMETER: 0.443 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN
TOLERANCE RANGE PER SECTION: -20.00 TO 20.00 PERCENT SINGLE SECTION
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION: 500.0 DC SINGLE SECTION
SCHEMATIC DIAGRAM DESIGNATOR: ELECTRODE(S) GROUNDED TO CASE
BODY LENGTH: 0.060 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
TERMINAL TYPE AND QUANTITY: 1 TAB, SOLDER LUG
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)
INSULATION RESISTANCE AT REFERENCE TEMP7500.0 MEGOHMS
TERMINAL LENGTH0.245 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN
BODY DIAMETER0.443 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN
TOLERANCE RANGE PER SECTION-20.00 TO 20.00 PERCENT SINGLE SECTION
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION500.0 DC SINGLE SECTION
SCHEMATIC DIAGRAM DESIGNATORELECTRODE(S) GROUNDED TO CASE
BODY LENGTH0.060 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
TERMINAL TYPE AND QUANTITY1 TAB, SOLDER LUG
TEMP COEFFICIENT OF CAPACITANCE RANGE PER SECTION IN PPM PER DEG CELSIUS-20.0 TO 100.0 SINGLE SECTION
CAPACITANCE VALUE PER SECTION500.000 PICOFARADS SINGLE SECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
M21 SPECIALInterchangeable
interchangeable cross-reference
interchangeable
3905G502Interchangeable
interchangeable cross-reference
interchangeable
M21Interchangeable
interchangeable cross-reference
interchangeable
1377-M500Interchangeable
interchangeable cross-reference
interchangeable
8875978Interchangeable
interchangeable cross-reference
interchangeable
81221Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M21-501M?
M21-501M is a CAPACITOR,FIXED,MICA DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace M21-501M?
There are 15 known substitutes for M21-501M: M21 SPECIAL, 3905G502, M21 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M21-501M?
M21-501M is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-686-9120. This indicates validated use in U.S. government and defense supply chains.
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