Name: Sun 256MB 1x256mb ECC Memory Dimm
Brand: SUN
SKU: 501-5401

501-5401 ✓ Verified by PartsTable

SUN · MEMORY · RDIMM

WHAT YOU NEED TO KNOW

Memory is a hot market right now. DDR5 and DDR4 are extremely volatile with data centers driving availability to extreme lows. Always validate machine type and model. Remember: all RAM is Hynix, Samsung, or Micron underneath OEM labels — use that to find alternatives. Key checks: Check OEM alternatives — all RAM is Hynix/Samsung/Micron underneath. Double-check what you're quoting in volatile market.

HOT market — DDR5/DDR4 extremely volatile

PRODUCT OVERVIEW

SUN 256MB 1X256MB ECC MEMORY DIMM

SUN 256MB 1X256MB ECC MEMORY DIMM. Key specifications include bulb_length: 12.000 INCHES NOMINAL IN, usage_design: CONTROL VALVE FLOW, bulb_diameter: 1.000 INCHES NOMINAL IN, thermostat_type: BULB, capillary_tube_length: 120.000 INCHES NOMINAL IN, operating_temp_rating: 90.0 FAHRENHEIT MINIMUM AND 130.0 FAHRENHEIT MAXIMUM DEGF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-505-5963, 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

MEMORY→ RDIMM→ 501-5401

NSN: 5998-01-505-5963
FSC: 5998 — CIRCUIT CARD ASSEMBLY
CAGE: 0D5T0 — SUN MICROSYSTEMS FEDERAL, INC. DBA SUN MICROSYSTEMS FEDERAL, INC. (USA)

SPECIFICATIONS

bulb_length	12.000 INCHES NOMINAL IN
usage_design	CONTROL VALVE FLOW
bulb_diameter	1.000 INCHES NOMINAL IN
thermostat_type	BULB
capillary_tube_length	120.000 INCHES NOMINAL IN
operating_temp_rating	90.0 FAHRENHEIT MINIMUM AND 130.0 FAHRENHEIT MAXIMUM DEGF
end_item_identification	TRAC REGULATOR INC,TEMPERATURE REGULATING VALVE,STYLE B 3-WAY
valve_size_for_which_designed	0.750 INCHES IN
NSN	5998-01-505-5963

COMPONENT DIAGRAM

KEY FEATURES

•

256MB Capacity

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)

SPECIAL FEATURES	NOMENCLATURE 256MB MEMORY DIMM MB
END ITEM IDENTIFICATION	USER REQUEST EVALUATION TOOL (URET)
SPECIAL FEATURES	NOMENCLATURE 256MB MEMORY DIMM MB
END ITEM IDENTIFICATION	USER REQUEST EVALUATION TOOL (URET)

VERIFIED SUBSTITUTES & CROSS-REFERENCES 4

50154-01Interchangeable

Sun 256MB 1x256mb ECC Memory Dimm

interchangeable

40214 REV A PIECE 1Interchangeable

interchangeable cross-reference

interchangeable

TF50-154-01Interchangeable

interchangeable cross-reference

interchangeable

TF50-154Interchangeable

interchangeable cross-reference

interchangeable

LIFECYCLE

StatusACTIVE

AvailabilityOEM and secondary market

RoHS CompliantEAR99ESD SensitiveNot HAZMAT

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FREQUENTLY ASKED QUESTIONS

What is 501-5401?

501-5401 is a Sun 256MB 1x256mb ECC Memory Dimm manufactured by SUN. It is classified as a MEMORY (RDIMM).

What parts can replace 501-5401?

There are 4 known substitutes for 501-5401: 50154-01, 40214 REV A PIECE 1, TF50-154-01 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 501-5401?

501-5401 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-505-5963. This indicates validated use in U.S. government and defense supply chains.

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