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Technical Data Sheet
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399-644 — Technical Data Sheet

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— · 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 material: PLASTIC CASE, body_style: W/O MTG FACILITIES TERMINAL(S) ON ONE SURFACE, body_width: 0.390 INCHES MAXIMUM IN, body_height: 0.210 INCHES MAXIMUM IN, body_length: 0.470 INCHES MAXIMUM IN, terminal_length: 1.250 INCHES MINIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5962-00-163-0150, 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→ 399-644
NSN: 5962-00-163-0150
FSC: 5962
CAGE: 05LK2 — FARNELL COMPONENTS INC DIV OF FARNELL ELECTRONICS PLC (USA)
SPECIFICATIONS
materialPLASTIC CASE
body_styleW/O MTG FACILITIES TERMINAL(S) ON ONE SURFACE
body_width0.390 INCHES MAXIMUM IN
body_height0.210 INCHES MAXIMUM IN
body_length0.470 INCHES MAXIMUM IN
terminal_length1.250 INCHES MINIMUM IN
features_providedMONOLITHIC AND W/SHORT CIRCUIT PROTECTION
inclosure_materialPLASTIC
storage_temp_range-65.0 TO 150.0 CELSIUS DEGC
operating_temp_range+0.0 TO 70.0 CELSIUS DEGC
input_circuit_patternDUAL 2 INPUT
reliability_indicatorNOT ESTABLISHED
NSN5962-00-163-0150
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,MICA DIELECTRIC TITLE COMPONENT PN 399-644 MFR CAPACITOR,FIXED,MICA D
KEY FEATURES
•
INPUT CIRCUIT PATTERN: DUAL 2 INPUT
•
MAXIMUM POWER DISSIPATION RATING: 800.0 MILLIWATTS
•
DESIGN FUNCTION AND QUANTITY: 2 AMPLIFIER, OPERATIONAL, HIGH SPEED
•
INCLOSURE MATERIAL: PLASTIC
•
INCLOSURE CONFIGURATION: DUAL-IN-LINE
•
BODY LENGTH: 0.770 INCHES MAXIMUM IN
•
BODY HEIGHT: 0.115 INCHES MAXIMUM IN
•
STORAGE TEMP RANGE: -65.0 TO 150.0 CELSIUS DEGC
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
INPUT CIRCUIT PATTERNDUAL 2 INPUT
MAXIMUM POWER DISSIPATION RATING800.0 MILLIWATTS
DESIGN FUNCTION AND QUANTITY2 AMPLIFIER, OPERATIONAL, HIGH SPEED
INCLOSURE MATERIALPLASTIC
INCLOSURE CONFIGURATIONDUAL-IN-LINE
BODY LENGTH0.770 INCHES MAXIMUM IN
BODY HEIGHT0.115 INCHES MAXIMUM IN
STORAGE TEMP RANGE-65.0 TO 150.0 CELSIUS DEGC
BODY WIDTH0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
TERMINAL SURFACE TREATMENTTIN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
DM15F561J0300WV4CRInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LM747CN/A+InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
JM38510/10102BCBInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
7100616InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
47DMQBInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
VA-85-0322-3InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 399-644?
399-644 is a CAPACITOR,FIXED,MICA DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 399-644?
There are 8 known substitutes for 399-644: DM15F561J0300WV4CR, LM747CN/A+, JM38510/10102BCB and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 399-644?
399-644 is cataloged in the Federal Logistics Information System under NSN 5962-00-163-0150. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026