PartsTable
Technical Data Sheet
PartsTable / MRO / TC74B
TC74B ✓ 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: ETCHED FOIL, body_style: W/O MTG FACILITIES, AXIAL TERMINALS, body_length: 1.411 INCHES MINIMUM AND 1.535 INCHES MAXIMUM IN, body_diameter: 0.729 INCHES MINIMUM AND 0.791 INCHES MAXIMUM IN, terminal_length: 3.375 INCHES NOMINAL IN, terminal_diameter: 0.040 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-649-9370, 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→ TC74B
NSN: 5910-00-649-9370
FSC: 5910
CAGE: 90201 — MALLORY SONALERT PRODUCTS, INC. (USA)
SPECIFICATIONS
anode_typeETCHED FOIL
body_styleW/O MTG FACILITIES, AXIAL TERMINALS
body_length1.411 INCHES MINIMUM AND 1.535 INCHES MAXIMUM IN
body_diameter0.729 INCHES MINIMUM AND 0.791 INCHES MAXIMUM IN
terminal_length3.375 INCHES NOMINAL IN
terminal_diameter0.040 INCHES NOMINAL IN
reliability_indicatorNOT ESTABLISHED
electrical_polarizationPOLARIZED
case_insulation_materialPLASTIC
nonderated_operating_temp-40.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
terminal_surface_treatmentSOLDER
terminal_type_and_quantity2 UNINSULATED WIRE LEAD
NSN5910-00-649-9370
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,ELECTROLYTIC TITLE COMPONENT PN TC74B MFR CAPACITOR,FIXED,ELECTR
KEY FEATURES
•
ANODE TYPE: ETCHED FOIL
•
TERMINAL DIAMETER: 0.040 INCHES NOMINAL IN
•
BODY DIAMETER: 0.729 INCHES MINIMUM AND 0.791 INCHES MAXIMUM IN
•
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION: 450.0 DC SINGLE SECTION
•
CAPACITANCE VALUE PER SECTION: 16.000 MICROFARADS SINGLE SECTION
•
ELECTRICAL POLARIZATION: POLARIZED
•
TOLERANCE RANGE PER SECTION: -10.00 TO 50.00 PERCENT SINGLE SECTION
•
TERMINAL LENGTH: 3.375 INCHES NOMINAL IN
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)
ANODE TYPEETCHED FOIL
TERMINAL DIAMETER0.040 INCHES NOMINAL IN
BODY DIAMETER0.729 INCHES MINIMUM AND 0.791 INCHES MAXIMUM IN
NONDERATED CONTINUOUS VOLTAGE RATING AND TYPE PER SECTION450.0 DC SINGLE SECTION
CAPACITANCE VALUE PER SECTION16.000 MICROFARADS SINGLE SECTION
ELECTRICAL POLARIZATIONPOLARIZED
TOLERANCE RANGE PER SECTION-10.00 TO 50.00 PERCENT SINGLE SECTION
TERMINAL LENGTH3.375 INCHES NOMINAL IN
BODY LENGTH1.411 INCHES MINIMUM AND 1.535 INCHES MAXIMUM IN
NONDERATED OPERATING TEMP-40.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
5120PL1952734Interchangeable
interchangeable cross-reference
interchangeable
KK-3/16Interchangeable
interchangeable cross-reference
interchangeable
GGG-H-575 TY1CL2SZ3/16 INInterchangeable
interchangeable cross-reference
interchangeable
M-3/16Interchangeable
interchangeable cross-reference
interchangeable
04-M-3/16Interchangeable
interchangeable cross-reference
interchangeable
GGG-H-575Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TC74B?
TC74B is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace TC74B?
There are 13 known substitutes for TC74B: 5120PL1952734, KK-3/16, GGG-H-575 TY1CL2SZ3/16 IN and 10 more. Substitute compatibility should be verified for your specific system.
Is TC74B still available?
TC74B 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