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Technical Data Sheet
PartsTable / MRO / 12666TYPEM23
12666TYPEM23 ✓ 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 terminal_type: SOLDER STUD, overall_height: 0.219 INCHES NOMINAL IN, overall_diameter: 0.625 INCHES NOMINAL IN, contact_adjustability: ACTUATION POINT NOT ADJUSTABLE, contact_action_stimulus: INCREASE, contact_stimulus_rating: 158.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 131.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-548-3011, 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→ 12666TYPEM23
NSN: 5930-00-548-3011
FSC: 5930
CAGE: 82383 — STEVENS MFG CO
SPECIFICATIONS
terminal_typeSOLDER STUD
overall_height0.219 INCHES NOMINAL IN
overall_diameter0.625 INCHES NOMINAL IN
contact_adjustabilityACTUATION POINT NOT ADJUSTABLE
contact_action_stimulusINCREASE
contact_stimulus_rating158.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 131.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
temp_sensing_element_typeINTERNAL SENSOR
contact_load_current_rating1.0 AMPERES RESISTIVE LOAD THIRD VOLTAGE
nonpile-up_contact_arrangement1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
contact_voltage_rating_in_volts125.0 AC AT SEA LEVEL SECOND VOLTAGE
NSN5930-00-548-3011
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,MICA DIELECTRIC TITLE COMPONENT PN 12666TYPEM23 MFR CAPACITOR,FIXED,MICA D
KEY FEATURES
•
OVERALL DIAMETER: 0.625 INCHES NOMINAL IN
•
CONTACT VOLTAGE RATING IN VOLTS: 125.0 AC AT SEA LEVEL SECOND VOLTAGE
•
CONTACT ADJUSTABILITY: ACTUATION POINT NOT ADJUSTABLE
•
CONTACT LOAD CURRENT RATING: 10.0 AMPERES RESISTIVE LOAD FOURTH VOLTAGE
•
TERMINAL TYPE: SOLDER STUD
•
CONTACT STIMULUS RATING: 158.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 131.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
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)
OVERALL DIAMETER0.625 INCHES NOMINAL IN
CONTACT VOLTAGE RATING IN VOLTS125.0 AC AT SEA LEVEL SECOND VOLTAGE
CONTACT ADJUSTABILITYACTUATION POINT NOT ADJUSTABLE
CONTACT LOAD CURRENT RATING10.0 AMPERES RESISTIVE LOAD FOURTH VOLTAGE
CONTACT LOAD CURRENT RATING4.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE
TERMINAL TYPESOLDER STUD
CONTACT LOAD CURRENT RATING8.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE
CONTACT STIMULUS RATING158.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 131.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
CONTACT LOAD CURRENT RATING1.0 AMPERES RESISTIVE LOAD THIRD VOLTAGE
OVERALL HEIGHT0.219 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
52511Interchangeable
interchangeable cross-reference
interchangeable
45547Interchangeable
interchangeable cross-reference
interchangeable
7035930Interchangeable
interchangeable cross-reference
interchangeable
M23Interchangeable
interchangeable cross-reference
interchangeable
0840200005Interchangeable
interchangeable cross-reference
interchangeable
84020Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12666TYPEM23?
12666TYPEM23 is a CAPACITOR,FIXED,MICA DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 12666TYPEM23?
There are 19 known substitutes for 12666TYPEM23: 52511, 45547, 7035930 and 16 more. Substitute compatibility should be verified for your specific system.
Is 12666TYPEM23 still available?
12666TYPEM23 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