L77SDCG37SOL2RM8G D-Sub 37 Position Receptacle Equivalent & Substitute Parts

Part Overview

The L77SDCG37SOL2RM8G is a 37 position D-Sub receptacle connector manufactured by Amphenol ICC, featuring female sockets with vertical through-hole solder termination. This connector is classified as Active product status and is currently in stock with 830 units available. D-Sub connectors of this configuration are widely used in industrial control systems, data acquisition equipment, and legacy computing interfaces where 37-pin signal distribution is required. Substitute parts are identified when equivalent electrical and mechanical parameters are available from alternative manufacturers, enabling procurement flexibility and supply chain continuity.

Substiute Parts

L77SDCG37SOL2RM8G

Amphenol ICC (Commercial Products)In Stock: 896L77SDCG37SOL2RM8G Datasheet

Current PartRFQ

5745189-1

TE Connectivity AMP ConnectorsIn Stock: 12025745189-1 Datasheet

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5745189-7

TE Connectivity AMP ConnectorsIn Stock: 18055745189-7 Datasheet

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5747315-1

TE Connectivity AMP ConnectorsIn Stock: 10865747315-1 Datasheet

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745189-7

TE Connectivity AMP ConnectorsIn Stock: 2331745189-7 Datasheet

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747315-1

TE Connectivity AMP ConnectorsIn Stock: 850747315-1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the L77SDCG37SOL2RM8G are identified based on strict equivalence of the following critical parameters:

Mandatory Matching Parameters:

• Connector Type: Receptacle, Female Sockets
• Number of Positions: 37
• Shell Size, Connector Layout: 4 (DC, C)
• Mounting Type: Through Hole
• Termination: Solder
• Shell Material, Finish: Steel, Tin Plated
• Contact Finish: Gold, Flash
• Material Flammability Rating: UL94 V-0
• Contact Material: Phosphor Bronze
• Moisture Sensitivity Level: 1 (Unlimited)

Parameters Permitting Variation:

• Current Rating: Substitute parts rated at 6A exceed the 3A requirement and remain compatible
• Voltage Rating: Substitute parts rated at 125V are lower than the 250V specification; applications must verify voltage requirements
• Operating Temperature Range: Substitute parts rated to 105°C are lower than the 125°C maximum; applications must verify thermal requirements
• Flange Feature: Variations exist (Board Side M3, Housing/Shell Unthreaded, Board Side 4-40)
• Dielectric Material: Variations exist (Thermoplastic Glass Filled, Thermoplastic, Polyamide Glass Filled)
• RoHS Status: Variations exist (RoHS Compliant, ROHS3 Compliant, Not applicable, RoHS non-compliant)

Five substitute part numbers from TE Connectivity AMP Connectors meet the mandatory matching parameters.

Parameter Comparison

Engineering Selection Recommendations

All five substitute parts meet the mandatory electrical and mechanical compatibility criteria for the L77SDCG37SOL2RM8G. Selection among substitutes requires evaluation of application-specific constraints:

Voltage Consideration: The L77SDCG37SOL2RM8G is rated for 250V operation, while all TE Connectivity substitutes are rated for 125V. Applications operating above 125V must retain the original Amphenol ICC part.

Temperature Consideration: The L77SDCG37SOL2RM8G operates to 125°C maximum, while all TE Connectivity substitutes operate to 105°C maximum. Applications requiring operation above 105°C must retain the original Amphenol ICC part.

Current Capacity: All TE Connectivity substitutes provide 6A current rating, exceeding the 3A specification of the original part. This represents enhanced capability with no compatibility penalty.

Regulatory Compliance:

• 5745189-7 and 5747315-1 carry RoHS Compliant certification, matching the original part status
• 5745189-1 carries ROHS3 Compliant certification, indicating compliance with updated RoHS directives
• 745189-7 is RoHS non-compliant and should be avoided in applications requiring RoHS compliance
• 747315-1 carries Not applicable RoHS status and requires application-specific compliance verification

Inventory Availability: TE Connectivity part 745189-7 offers the highest inventory level at 2246 units, followed by 5745189-7 at 1761 units.

Frequently Asked Questions (FAQ)

Q: Can TE Connectivity part 5745189-7 directly replace the Amphenol ICC L77SDCG37SOL2RM8G?

A: Part 5745189-7 meets all mandatory electrical and mechanical parameters. However, the application must operate within 125V and 105°C limits. If the original design requires 250V or 125°C operation, substitution is not permissible.

Q: What is the difference between the AMPLIMITE HDP-20 and AMPLIMITE HD-20 series?

A: Both series provide 37-position D-Sub receptacles with equivalent electrical performance. The primary differences are in flange feature design and dielectric material composition. HDP-20 series uses Housing/Shell Unthreaded flanges with Thermoplastic dielectric. HD-20 series offers Board Side (4-40) flange options with either Thermoplastic or Polyamide Glass Filled dielectric.

Q: Why does the original part have a 250V rating while substitutes are rated 125V?

A: Voltage rating is determined by dielectric material composition and spacing geometry. The original Amphenol ICC part uses a specific dielectric formulation supporting 250V operation. TE Connectivity substitutes use alternative dielectric materials rated for 125V. Applications must verify that 125V rating is sufficient for their circuit requirements.

Q: Are all substitute parts RoHS compliant?

A: No. Part 5745189-7 and 5747315-1 are RoHS Compliant. Part 5745189-1 is ROHS3 Compliant. Part 745189-7 is RoHS non-compliant. Part 747315-1 has Not applicable RoHS status. Applications requiring RoHS compliance should select 5745189-7 or 5747315-1.

Q: What is the significance of the flange feature variations?

A: Flange features determine mounting method. Board Side (M3) and Board Side (4-40) flanges use threaded fasteners for board mounting. Housing/Shell Unthreaded flanges rely on press-fit or adhesive mounting. The original part uses Board Side (M3) flanges. Substitutes with Housing/Shell Unthreaded flanges require different PCB mounting hole specifications.

Q: Can I use part 745189-7 in a new design requiring RoHS compliance?

A: No. Part 745189-7 is RoHS non-compliant and is unsuitable for applications requiring RoHS certification. Select 5745189-7 or 5747315-1 instead.

Q: What is the operating temperature difference between the original and substitute parts?

A: The original L77SDCG37SOL2RM8G operates from -55°C to 125°C. All TE Connectivity substitutes operate from -55°C to 105°C. Applications requiring operation above 105°C must use the original Amphenol ICC part.

Q: Are the contact materials identical across all parts?

A: Yes. All parts use Phosphor Bronze contacts with gold flash finish, ensuring equivalent electrical contact performance and corrosion resistance.