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Technical Data Sheet
PartsTable / COMPONENT / 861540-0020
861540-0020 ✓ 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

The MICROCIRCUIT,MEMORY is a the manufacturer memory module engineered for enterprise server and workstation platforms requiring validated, high-reliability memory. Key specifications include body_width: 0.150 INCHES MAXIMUM IN, body_height: 0.045 INCHES MAXIMUM IN, body_length: 0.260 INCHES MAXIMUM IN, features_provided: MONOLITHIC AND HERMETICALLY SEALED, output_logic_form: DIODE LOGIC, inclosure_material: CERAMIC OR GLASS OR METAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-01-045-8207, 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
861540-0020
NSN: 5962-01-045-8207
FSC: 5962
CAGE: 13973 — LITTON SYSTEMS INC. DIV NAVIGATION SYSTEMS DIVISION (USA)
SPECIFICATIONS
body_width0.150 INCHES MAXIMUM IN
body_height0.045 INCHES MAXIMUM IN
body_length0.260 INCHES MAXIMUM IN
features_providedMONOLITHIC AND HERMETICALLY SEALED
output_logic_formDIODE LOGIC
inclosure_materialCERAMIC OR GLASS OR METAL
memory_device_typeDIODE MATRIX
storage_temp_range-65.0 TO 150.0 CELSIUS DEGC
operating_temp_range-55.0 TO 125.0 CELSIUS DEGC
input_circuit_pattern6 INPUT
inclosure_configurationFLAT PACK
terminal_surface_treatmentSOLDER
NSN5962-01-045-8207
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MICROCIRCUIT,MEMORY TITLE COMPONENT PN 861540-0020 MFR MICROCIRCUIT,MEMORY
KEY FEATURES
•
OPERATING TEMP RANGE: -55.0 TO 125.0 CELSIUS DEGC
•
INCLOSURE MATERIAL: CERAMIC OR GLASS OR METAL
•
INCLOSURE CONFIGURATION: FLAT PACK
•
BODY WIDTH: 0.150 INCHES MAXIMUM IN
•
MAXIMUM POWER DISSIPATION RATING: 450.0 MILLIWATTS
•
TEST DATA DOCUMENT: 13973-861540 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
•
FEATURES PROVIDED: MONOLITHIC AND HERMETICALLY SEALED
•
TERMINAL SURFACE TREATMENT: SOLDER
TYPICAL APPLICATIONS
  • Server memory expansion for virtualization workloads
  • Database performance optimization (in-memory computing)
  • VDI and remote desktop session hosting
  • High-performance computing (HPC) clusters
  • Mail server and collaboration platform scaling
  • Application server tier expansion
TECHNICAL CHARACTERISTICS (FLIS)
OPERATING TEMP RANGE-55.0 TO 125.0 CELSIUS DEGC
INCLOSURE MATERIALCERAMIC OR GLASS OR METAL
INCLOSURE CONFIGURATIONFLAT PACK
BODY WIDTH0.150 INCHES MAXIMUM IN
MAXIMUM POWER DISSIPATION RATING450.0 MILLIWATTS
TEST DATA DOCUMENT13973-861540 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
FEATURES PROVIDEDMONOLITHIC AND HERMETICALLY SEALED
TERMINAL SURFACE TREATMENTSOLDER
OUTPUT LOGIC FORMDIODE LOGIC
BODY HEIGHT0.045 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
RMU3/4Interchangeable
interchangeable cross-reference
interchangeable
SM1012MUA3/4Interchangeable
interchangeable cross-reference
interchangeable
RM3-4Interchangeable
interchangeable cross-reference
interchangeable
861540-0018Interchangeable
interchangeable cross-reference
interchangeable
861540-0019Interchangeable
interchangeable cross-reference
interchangeable
861540-0021Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 861540-0020?
861540-0020 is a MICROCIRCUIT,MEMORY.
What parts can replace 861540-0020?
There are 9 known substitutes for 861540-0020: RMU3/4, SM1012MUA3/4, RM3-4 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 861540-0020?
861540-0020 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-01-045-8207. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026