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Technical Data Sheet
405990 ✓ Verified by PartsTable
· COMPONENT
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,VARIABLE,CERAMIC DIELE. Key specifications include body_width: 0.250 INCHES NOMINAL IN, body_height: 0.180 INCHES NOMINAL IN, body_length: 0.785 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED, features_provided: HERMETICALLY SEALED AND W/TOTEM POLE OUTPUT, output_logic_form: TRANSISTOR-TRANSISTOR LOGIC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-01-033-6033, 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
405990
NSN: 5950-01-033-6033
FSC: 5950
CAGE: 64959 — AMERICAN TELEPHONE AND TELEGRAPH CO (USA)
SPECIFICATIONS
body_width0.250 INCHES NOMINAL IN
body_height0.180 INCHES NOMINAL IN
body_length0.785 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
features_providedHERMETICALLY SEALED AND W/TOTEM POLE OUTPUT
output_logic_formTRANSISTOR-TRANSISTOR LOGIC
inclosure_materialCERAMIC
storage_temp_range-65.0 TO 150.0 CELSIUS DEGC
test_data_document81349-MIL-STD-883 LEVEL B STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
operating_temp_range-55.0 TO 125.0 CELSIUS DEGC
input_circuit_pattern5 INPUT
inclosure_configurationDUAL-IN-LINE
NSN5950-01-033-6033
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,CERAMIC DIELE TITLE COMPONENT PN 405990 MFR CAPACITOR,VARIABLE,CER
KEY FEATURES
INCLOSURE TYPE: FULLY INCLOSED
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)
INCLOSURE TYPEFULLY INCLOSED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
UA9616HDMQBInterchangeable
interchangeable cross-reference
interchangeable
B4009546Interchangeable
interchangeable cross-reference
interchangeable
9616DMInterchangeable
interchangeable cross-reference
interchangeable
3-904-N70Interchangeable
interchangeable cross-reference
interchangeable
405990Interchangeable
interchangeable cross-reference
interchangeable
2CS723Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 405990?
405990 is a CAPACITOR,VARIABLE,CERAMIC DIELE.
What parts can replace 405990?
There are 6 known substitutes for 405990: UA9616HDMQB, B4009546, 9616DM and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 405990?
405990 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-01-033-6033. This indicates validated use in U.S. government and defense supply chains.
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