TE Connectivity 2-748394-6 D-Sub High Density 62 Position Receptacle Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 2-748394-6 is a 62 Position D-Sub High Density Receptacle connector with female sockets, right-angle through-hole solder termination, and mating side female screwlock (4-40) flange feature. This connector is classified as obsolete product status. Identification of equivalent and substitute D-Sub high density receptacle connectors is necessary to support legacy system maintenance, design continuity, and procurement alternatives where original inventory becomes unavailable.

Substiute Parts

2-748394-6

TE Connectivity AMP ConnectorsIn Stock: 7752-748394-6 Datasheet

Current PartRFQ

634-062-263-042

Mercury United Electronics, Inc.In Stock: 985634-062-263-042 Datasheet

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634-062-263-043

Mercury United Electronics, Inc.In Stock: 1051634-062-263-043 Datasheet

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634-062-663-042

Mercury United Electronics, Inc.In Stock: 744634-062-663-042 Datasheet

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634-062-663-043

Mercury United Electronics, Inc.In Stock: 1123634-062-663-043 Datasheet

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L177HDC62SD1CH3F

Amphenol ICC (Commercial Products)In Stock: 1127L177HDC62SD1CH3F Datasheet

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L177HDC62SD1CH3R

Amphenol ICC (Commercial Products)In Stock: 1044L177HDC62SD1CH3R Datasheet

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L177HDC62SD1CH4R

Amphenol ICC (Commercial Products)In Stock: 1182L177HDC62SD1CH4R Datasheet

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L77HDC62SD1CH3F

Amphenol ICC (Commercial Products)In Stock: 1028L77HDC62SD1CH3F Datasheet

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L77HDC62SD1CH3FC309

Amphenol ICC (Commercial Products)In Stock: 832L77HDC62SD1CH3FC309 Datasheet

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L77HDC62SD1CH3R

Amphenol ICC (Commercial Products)In Stock: 825L77HDC62SD1CH3R Datasheet

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L77HDC62SD1CH3RC309

Amphenol ICC (Commercial Products)In Stock: 1045L77HDC62SD1CH3RC309 Datasheet

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L77HDC62SD1CH4FC309

Amphenol ICC (Commercial Products)In Stock: 853L77HDC62SD1CH4FC309 Datasheet

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L77HDC62SD1CH4R

Amphenol ICC (Commercial Products)In Stock: 1072L77HDC62SD1CH4R Datasheet

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L77HDC62SD1CH4RC309

Amphenol ICC (Commercial Products)In Stock: 1153L77HDC62SD1CH4RC309 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 2-748394-6 connector is determined by the following critical parameters that must align across candidate parts:

Primary Matching Criteria:

• Connector type: D-Sub, High Density Receptacle with female sockets
• Position count: 62 positions
• Row configuration: 3 rows
• Shell size and layout: 4 (DC, C) High Density
• Mounting style: Through Hole, Right Angle
• Termination method: Solder
• Contact type: Signal

Secondary Compatibility Parameters:

• Flange feature configuration (mating side or board side mounting)
• Shell material and finish specifications
• Contact finish material and thickness
• Current and voltage ratings
• Operating temperature range
• Dielectric material composition

Substitute parts are grouped into two categories: Mercury United Electronics 634 Series connectors and Amphenol ICC HD Series connectors. Both manufacturers produce 62-position D-Sub high density receptacles with solder termination and right-angle mounting that satisfy the primary matching criteria. Variations in flange feature design, shell finish, contact material composition, and electrical ratings create distinct substitution scenarios based on application requirements.

Parameter Comparison

Engineering Selection Recommendations

Amphenol ICC HD Series Substitutes (L177HDC62 and L77HDC62 variants):

All Amphenol ICC substitute parts carry Active product status, providing long-term availability and manufacturing continuity. These connectors are RoHS Compliant, meeting current environmental and regulatory requirements. The Amphenol parts feature higher current ratings (3A versus 2A) and higher voltage ratings (250V versus 125V), providing enhanced electrical performance margins. Operating temperature ranges extend to 125°C on the L177HDC62SD1CH3R variant, supporting broader thermal application requirements.

Flange feature variations exist across the Amphenol line:

• L177HDC62SD1CH3F and L77HDC62SD1CH3F feature mating side female screwlock (M3)
• L177HDC62SD1CH3R and L77HDC62SD1CH3R feature board side (M3)
• L177HDC62SD1CH4R features board side (4-40)

Shell finish differs from the original part: Amphenol substitutes use tin plating versus the original nickel plating. Contact material varies between brass and phosphor bronze across the product line. Contact finish thickness specifications range from flash to 16.0µin (0.41µm) to 30.0µin (0.76µm).

Mercury United Electronics 634 Series Substitutes:

Mercury 634 Series connectors (634-062-263-042, 634-062-263-043, 634-062-663-042, 634-062-663-043) provide alternative sourcing for 62-position D-Sub high density receptacles with solder termination and right-angle mounting. Product status and compliance certifications are not specified for these parts. Current and voltage ratings are not documented. These connectors satisfy the primary mechanical and electrical interface requirements but lack documented compliance and performance specifications.

Compliance Considerations:

For applications requiring RoHS compliance, Amphenol ICC HD Series substitutes are appropriate selections. For legacy systems or applications without RoHS requirements, Mercury 634 Series or Amphenol options remain functionally compatible. The original TE Connectivity 2-748394-6 is RoHS non-compliant; substitution with RoHS-compliant alternatives may require design review for applications subject to environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can Mercury 634 Series connectors directly replace the TE Connectivity 2-748394-6?

A: Mercury 634 Series connectors (634-062-263-042, 634-062-263-043, 634-062-663-042, 634-062-663-043) share the same 62-position D-Sub high density receptacle configuration, female socket type, right-angle through-hole solder termination, and shell size. Mechanical and electrical interface compatibility is established. Specific flange feature configurations and contact material specifications for Mercury parts are not documented in available data; verification against application-specific requirements is necessary.

Q: What are the key differences between Amphenol L177HDC62 and L77HDC62 variants?

A: Both L177HDC62 and L77HDC62 series connectors meet the 62-position D-Sub high density receptacle requirements with solder termination and right-angle mounting. The primary distinction is the flange feature configuration: L177HDC62 variants offer both mating side female screwlock (M3) and board side (M3 or 4-40) options, while L77HDC62 variants provide mating side female screwlock (M3) and board side (M3) configurations. Contact material differs: L177HDC62 uses brass contacts, while L77HDC62 uses brass or phosphor bronze. Both series support 3A current rating and 250V voltage rating.

Q: Is the original TE Connectivity 2-748394-6 with nickel-plated shell compatible with Amphenol substitutes featuring tin-plated shells?

A: The shell finish difference (nickel plating versus tin plating) does not affect mechanical mating or electrical signal integrity for D-Sub high density receptacle connectors. Both finishes provide corrosion resistance and electrical conductivity. Shell finish selection is typically driven by environmental exposure, cost considerations, and specific application requirements. Substitution with tin-plated Amphenol connectors is mechanically and electrically compatible with existing mating plugs and PCB layouts.

Q: Do Amphenol HD Series connectors support the same flange feature as the original 2-748394-6?

A: The original TE Connectivity 2-748394-6 features a mating side female screwlock (4-40) flange. Amphenol L177HDC62SD1CH4R provides an equivalent mating side configuration with board side (4-40) flange feature. Amphenol L77HDC62SD1CH3F and L77HDC62SD1CH3FC309 provide mating side female screwlock (M3) configurations. Flange feature selection depends on mounting orientation and mechanical interface requirements. Verify flange screw size and mounting side compatibility with application-specific PCB and enclosure designs.

Q: What is the significance of contact finish thickness variations across Amphenol substitutes?

A: Contact finish thickness specifications (flash, 16.0µin, or 30.0µin) indicate the gold plating depth on contact surfaces. Flash plating provides minimal gold coverage for corrosion protection and contact resistance. Thicker plating (16.0µin or 30.0µin) offers enhanced durability and extended contact life under repeated mating cycles. For applications with infrequent mating or non-critical signal paths, flash plating is sufficient. For high-cycle mating applications or critical signal integrity requirements, thicker contact finish specifications provide additional performance margin.

Q: Are Amphenol HD Series connectors suitable for applications originally designed for the obsolete TE Connectivity 2-748394-6?

A: Amphenol ICC HD Series connectors are suitable for applications originally designed for the TE Connectivity 2-748394-6 when the following conditions are met: (1) the application operates within the Amphenol connector's current rating (3A minimum), voltage rating (250V minimum), and temperature range (-55°C to 105°C or 125°C depending on variant); (2) the flange feature configuration matches the application's mounting requirements; (3) the application accepts RoHS-compliant components or does not require RoHS compliance; (4) the shell finish change from nickel to tin plating does not conflict with environmental or corrosion requirements. Amphenol substitutes provide enhanced electrical performance and regulatory compliance compared to the original obsolete part.

Q: What inventory availability should be considered when selecting a substitute?

A: Current inventory levels for substitute parts are: Mercury 634-062-263-042 (967 Pcs), Mercury 634-062-263-043 (986 Pcs), Mercury 634-062-663-042 (696 Pcs), Mercury 634-062-663-043 (1080 Pcs), Amphenol L177HDC62SD1CH3F (1089 Pcs), Amphenol L177HDC62SD1CH3R (936 Pcs), Amphenol L177HDC62SD1CH4R (1075 Pcs), Amphenol L77HDC62SD1CH3F (923 Pcs), Amphenol L77HDC62SD1CH3FC309 (816 Pcs), and Amphenol L77HDC62SD1CH3R (745 Pcs). Inventory availability supports both immediate procurement and long-term production requirements. Amphenol parts with Active product status provide ongoing manufacturing support beyond current stock levels.