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21-1686 — CAPACITOR

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

21-1686: CAPACITOR.

The CAPACITOR 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 duty_cycle: CONTINUOUS, temp_rating: -30.0 AMBIENT CELSIUS AND 50.0 AMBIENT CELSIUS, current_type: DC INPUT, power_rating: 0.0100 HORSEPOWER OUTPUT, winding_type: SERIES WOUND, overall_width: 3.328 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 3010-00-237-3664, 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→ 21-1686
NSN: 3010-00-237-3664
NIINs: 002373664, 011406399
FSC: 3010 — Torque Converters and Speed Changers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
duty_cycleCONTINUOUS
temp_rating-30.0 AMBIENT CELSIUS AND 50.0 AMBIENT CELSIUS
current_typeDC INPUT
power_rating0.0100 HORSEPOWER OUTPUT
winding_typeSERIES WOUND
overall_width3.328 INCHES IN
overall_height3.656 INCHES IN
overall_length8.532 INCHES IN
shaft_diameter0.3120 INCHES NOMINAL SINGLE END IN
special_featuresOUTPUT SHAFT AT ANGLE W/ARMATURE AXIS,SHAFT PROJECTS FROM LEFT SIDE FACING GEAR HOUSING W/MTG PLANE AT BOTTOM
features_providedVERTICAL MOUNTING POSITION AND HORIZONTAL MOUNTING POSITION
current_rating_methodLOAD
NSN3010-00-237-3664
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR TITLE COMPONENT PN 21-1686 MFR CAPACITOR
KEY FEATURES
•
MOUNTING FACILITY TYPE AND QUANTITY: 4 UNTHREADED HOLE(S)
•
DUTY CYCLE: CONTINUOUS
•
SHAFT DIAMETER: 0.3120 INCHES NOMINAL SINGLE END IN
•
CURRENT TYPE: DC INPUT
•
WINDING TYPE: SERIES WOUND
•
FEATURES PROVIDED: VERTICAL MOUNTING POSITION AND HORIZONTAL MOUNTING POSITION
•
CONNECTION TYPE AND VOLTAGE RATING IN VOLTS: 6.0 LINE TO NEUTRAL SINGLE INPUT
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
MOUNTING FACILITY TYPE AND QUANTITY4 UNTHREADED HOLE(S)
DUTY CYCLECONTINUOUS
SHAFT DIAMETER0.3120 INCHES NOMINAL SINGLE END IN
CURRENT TYPEDC INPUT
OVERALL LENGTH8.532 INCHES IN
WINDING TYPESERIES WOUND
FEATURES PROVIDEDVERTICAL MOUNTING POSITION AND HORIZONTAL MOUNTING POSITION
CONNECTION TYPE AND VOLTAGE RATING IN VOLTS6.0 LINE TO NEUTRAL SINGLE INPUT
OVERALL WIDTH3.328 INCHES IN
OVERALL HEIGHT3.656 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 1
808-393ALT0Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21-1686?
21-1686 is a CAPACITOR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21-1686?
There is 1 known substitute for 21-1686: 808-393ALT0. Substitute compatibility should be verified for your specific system.
What is the NSN for 21-1686?
21-1686 is cataloged in the U.S. Government catalog under NSN 3010-00-237-3664. This indicates validated use in U.S. government and defense supply chains.
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