L77TWD24W7SC801 Equivalent & Substitute Parts

Part Overview

The L77TWD24W7SC801 is a D-Sub receptacle connector with 24 positions manufactured by Amphenol Communications Solutions. This connector is classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations. The part functions as a position connector in D-shaped connector applications requiring 24-position receptacle configuration.

Substiute Parts

L77TWD24W7SC801

Amphenol Communications SolutionsIn Stock: 948L77TWD24W7SC801 Datasheet

Current PartRFQ

DDM-24W7S-A197

ITT Cannon, LLCIn Stock: 962DDM-24W7S-A197 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L77TWD24W7SC801 is based on the following critical parameters that must align between the original and substitute component:

• Connector Category: D-Sub, D-Shaped Connectors
• Number of Positions: 24-position configuration
• Connector Type: Receptacle with female sockets
• Shell Size and Layout: 5 (DD, D) - 24W7 designation
• Mounting Configuration: Panel mount capability
• Termination Method: Solder cup termination
• Environmental Classification: MSL rating compatibility

The DDM-24W7S-A197 from ITT Cannon, LLC satisfies these substitution criteria as an active product offering equivalent electrical and mechanical interfaces for the obsolete L77TWD24W7SC801.

Parameter Comparison

Engineering Selection Recommendations

The DDM-24W7S-A197 is the designated substitute for the obsolete L77TWD24W7SC801 based on matching connector architecture and position configuration. The substitute part is currently in active production status, ensuring availability for procurement and supply chain continuity.

The DDM-24W7S-A197 carries ROHS3 compliance certification, meeting current environmental and regulatory requirements for electronic component manufacturing. The part is classified under ECCN EAR99, appropriate for standard commercial applications.

Physical and electrical compatibility is established through identical 24-position D-Sub receptacle configuration with panel mount capability and solder cup termination. The substitute component supports the same connector interface standard as the original part.

Frequently Asked Questions (FAQ)

Q: What makes DDM-24W7S-A197 a suitable substitute for L77TWD24W7SC801?

A: Both components are 24-position D-Sub receptacle connectors with identical shell size designation (24W7) and panel mount configuration. The substitute maintains electrical and mechanical compatibility through matching connector type, position count, and termination method.

Q: Are there any differences in environmental ratings between these parts?

A: The original part specifies MSL 1 (Unlimited). The substitute part lists MSL as Not Applicable. Both components are suitable for standard industrial and commercial applications within their specified operating temperature ranges.

Q: What is the significance of the "17 + 7 Coax or Power" designation in the substitute part?

A: This indicates the 24-position configuration comprises 17 signal positions and 7 positions designated for coaxial or power connections. This mixed-signal capability is consistent with the original part's 24-position receptacle design.

Q: Is the substitute part RoHS compliant?

A: Yes, the DDM-24W7S-A197 is ROHS3 compliant, meeting current environmental standards for electronic components.

Q: What termination method is used for the substitute connector?

A: The DDM-24W7S-A197 uses solder cup termination, providing direct wire attachment capability for circuit board integration.