UA1558HMQB — MICROCIRCUIT,MEMORY

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

UA1558HMQB: MICROCIRCUIT,MEMORY.

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_height: 0.165 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN, features_provided: MONOLITHIC AND HERMETICALLY SEALED AND NEGATIVE OUTPUTS AND POSITIVE OUTPUTS, inclosure_material: GLASS AND METAL, memory_device_type: ROM, storage_temp_range: -65.0 TO 150.0 CELSIUS DEGC, operating_temp_range: -55.0 TO 125.0 CELSIUS DEGC. This part is cataloged in the U.S.

Government catalog under NSN 5962-01-086-9585, 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

UA1558HMQB

NSN: 5962-01-086-9585
FSC: 5962 — Microcircuits, Electronic
CAGE: 07263 — FAIRCHILD SEMICONDUCTOR CORP (USA)

SPECIFICATIONS

body_height	0.165 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
features_provided	MONOLITHIC AND HERMETICALLY SEALED AND NEGATIVE OUTPUTS AND POSITIVE OUTPUTS
inclosure_material	GLASS AND METAL
memory_device_type	ROM
storage_temp_range	-65.0 TO 150.0 CELSIUS DEGC
operating_temp_range	-55.0 TO 125.0 CELSIUS DEGC
body_outside_diameter	0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
input_circuit_pattern	DUAL 2 INPUT
inclosure_configuration	CAN
terminal_surface_treatment	SOLDER
terminal_type_and_quantity	8 PIN
maximum_power_dissipation_rating	680.0 MILLIWATTS
NSN	5962-01-086-9585

COMPONENT DIAGRAM

KEY FEATURES

•

INPUT CIRCUIT PATTERN: DUAL 2 INPUT

•

INCLOSURE MATERIAL: GLASS AND METAL

•

TERMINAL SURFACE TREATMENT: SOLDER

•

BODY OUTSIDE DIAMETER: 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN

•

BODY HEIGHT: 0.165 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN

•

FEATURES PROVIDED: MONOLITHIC AND HERMETICALLY SEALED AND NEGATIVE OUTPUTS AND POSITIVE OUTPUTS

•

INCLOSURE CONFIGURATION: CAN

•

MEMORY DEVICE TYPE: ROM

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

INPUT CIRCUIT PATTERN	DUAL 2 INPUT
INCLOSURE MATERIAL	GLASS AND METAL
TERMINAL SURFACE TREATMENT	SOLDER
BODY OUTSIDE DIAMETER	0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
BODY HEIGHT	0.165 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
FEATURES PROVIDED	MONOLITHIC AND HERMETICALLY SEALED AND NEGATIVE OUTPUTS AND POSITIVE OUTPUTS
INCLOSURE CONFIGURATION	CAN
MEMORY DEVICE TYPE	ROM
CASE OUTLINE SOURCE AND DESIGNATOR	A-1 MIL-M-38510
STORAGE TEMP RANGE	-65.0 TO 150.0 CELSIUS DEGC

OTHER ITEMS IN FSC 5962 — Microcircuits, Electronic

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5962-00-001-1861 5962-00-001-1901 5962-00-001-1902 5962-00-001-1905 5962-00-001-1906 5962-00-001-1907 5962-00-001-1908 5962-00-001-1909

SUBSTITUTES & CROSS-REFERENCES 2

MC1558BGCSReference document

Same NSN cross-reference

Reference document — Secondary reference

AM1558HBSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Demilitarization required — critical (Q)

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FREQUENTLY ASKED QUESTIONS

What is UA1558HMQB?

UA1558HMQB is a MICROCIRCUIT,MEMORY.

What parts can replace UA1558HMQB?

There are 2 known substitutes for UA1558HMQB: MC1558BGCS, AM1558HB. Substitute compatibility should be verified for your specific system.

What is the NSN for UA1558HMQB?

UA1558HMQB is cataloged in the U.S. Government catalog under NSN 5962-01-086-9585. This indicates validated use in U.S. government and defense supply chains.

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