634-044-263-142 D-Sub High Density Receptacle Equivalent & Substitute Parts

Part Overview

The 634-044-263-142 is a 44-position D-Sub high density receptacle connector manufactured by Mercury United Electronics, Inc. This panel-mount, right-angle solder connector features female sockets with nickel-plated steel housing and gold-flashed contacts. The connector is actively produced and maintains full inventory availability. Equivalent and substitute parts are identified based on matching electrical and mechanical parameters within the D-Sub high density connector category, enabling component selection flexibility for design requirements and supply chain optimization.

Substiute Parts

634-044-263-142

Mercury United Electronics, Inc.In Stock: 681634-044-263-142 Datasheet

Current PartRFQ

09564615713

HARTINGIn Stock: 75809564615713 Datasheet

SimilarRFQ

09564617713

HARTINGIn Stock: 93909564617713 Datasheet

SimilarRFQ

L17HTHBS4F1C

Amphenol ICC (Commercial Products)In Stock: 1685L17HTHBS4F1C Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 634-044-263-142 is determined by the following critical parameters:

Primary Matching Criteria:

• Connector type: Receptacle, Female Sockets
• Number of positions: 44
• Shell size and layout: 3 (DB, B) High Density
• Mounting configuration: Through Hole, Right Angle
• Termination method: Solder

Secondary Compatibility Parameters:

• Current rating: 3A minimum
• Operating temperature range: Must encompass -55°C to 105°C
• Material flammability: UL94 V-0
• RoHS compliance status
• Contact finish: Gold or equivalent

The substitute part L17HTHBS4F1C from Amphenol ICC (Commercial Products) matches all primary criteria and maintains compatibility across secondary parameters. This part is identified as a direct equivalent based on identical connector configuration, position count, shell size, and mounting style.

Parameter Comparison

Engineering Selection Recommendations

The L17HTHBS4F1C from Amphenol ICC (Commercial Products) is a direct equivalent to the 634-044-263-142. Both connectors are actively produced, maintain full RoHS compliance, and share identical electrical and mechanical specifications for the 44-position D-Sub high density receptacle configuration.

The Amphenol ICC part offers an extended operating temperature range (-55°C ~ 150°C versus -55°C ~ 105°C), providing additional thermal margin for applications requiring higher temperature performance. Shell finish differs (tin plated versus nickel plated), which does not affect electrical performance or compatibility in standard applications.

Selection between these parts should be based on supply availability, lead time requirements, and specific application thermal demands. Both parts carry equivalent regulatory compliance and are suitable for direct substitution in panel-mount, through-hole solder applications.

Frequently Asked Questions (FAQ)

Q: Can the L17HTHBS4F1C replace the 634-044-263-142 in existing designs?

A: Yes. Both connectors are 44-position D-Sub high density receptacles with identical pin counts, shell sizes, mounting configurations, and solder termination. Electrical and mechanical compatibility is maintained across all standard applications.

Q: What is the difference between nickel-plated and tin-plated shell finishes?

A: Shell finish does not affect electrical performance or mating compatibility. Nickel plating provides corrosion resistance in marine and harsh environments. Tin plating offers cost advantages and is suitable for standard industrial applications. Selection depends on environmental exposure requirements.

Q: Are both parts RoHS compliant?

A: Yes. The 634-044-263-142 is ROHS3 compliant, and the L17HTHBS4F1C is RoHS compliant. Both meet regulatory requirements for hazardous substance restrictions.

Q: What is the significance of the extended operating temperature range on the Amphenol part?

A: The L17HTHBS4F1C operates from -55°C to 150°C, compared to -55°C to 105°C for the Mercury part. This extended range provides additional thermal margin for applications in high-temperature environments. If your application operates within the Mercury part's range, both parts are functionally equivalent.

Q: Are the packaging formats interchangeable?

A: The 634-044-263-142 is supplied in bulk packaging, while the L17HTHBS4F1C is supplied in tray packaging. Packaging format does not affect connector performance or compatibility. Selection may depend on inventory management and handling requirements.

Q: What is the current rating, and does it apply to all pins?

A: Both connectors are rated for 3A per contact. This rating applies uniformly across all 44 positions. Total current capacity depends on the number of pins used and thermal dissipation characteristics of the application.

Q: Can these connectors be used interchangeably with other D-Sub configurations?

A: No. These connectors are specific to the 44-position, 3-row, high-density (DB/B shell size) configuration. They are not compatible with other position counts, row configurations, or shell sizes within the D-Sub family.