L77SDE09S4F D-Sub Receptacle Connector - Equivalent & Substitute Parts

Part Overview

The L77SDE09S4F is a 9-position D-Sub receptacle connector manufactured by Amphenol ICC, featuring female sockets with solder cup termination. This connector is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and field replacement requirements. The primary substitute maintains identical connector functionality while offering improved product availability through active manufacturing status.

Substiute Parts

L77SDE09S4F

Amphenol ICC (Commercial Products)In Stock: 1173L77SDE09S4F Datasheet

Current PartRFQ

L77SDE09SVF

Amphenol ICC (Commercial Products)In Stock: 1412L77SDE09SVF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L77SDE09S4F with the L77SDE09SVF is valid based on the following electrical and mechanical compatibility criteria:

Critical Substitution Parameters:

• Identical connector style, type, and position configuration (9-position D-Sub receptacle)
• Identical shell size and connector layout (1 / DE, E)
• Identical mounting type and flange configuration
• Identical termination method (solder cup)
• Identical shell material finish and contact finish specifications
• Identical voltage and current ratings (250V, 3A)
• Identical compliance certifications (UL94 V-0, RoHS)
• Identical moisture sensitivity level

Packaging Difference: The substitute part (L77SDE09SVF) is supplied in tray packaging, whereas the original part (L77SDE09S4F) packaging is not specified. This represents a non-functional distinction suitable for engineering substitution.

Product Status: The original part is obsolete. The substitute part maintains active manufacturing status, ensuring continued availability and supply chain support.

Parameter Comparison

Engineering Selection Recommendations

For New Designs and Ongoing Production: Specify L77SDE09SVF as the primary connector selection. This part maintains all electrical and mechanical compatibility with the original L77SDE09S4F while offering the advantage of active manufacturing status and confirmed supply chain availability.

For Field Replacement and Legacy Systems: The L77SDE09SVF serves as a direct engineering substitute for the obsolete L77SDE09S4F. Both parts are RoHS compliant and meet UL94 V-0 flammability requirements, ensuring regulatory equivalence across applications.

Packaging Consideration: The substitute part is supplied in tray packaging. Verify that procurement and assembly processes accommodate this packaging format.

Frequently Asked Questions (FAQ)

Q: Can L77SDE09SVF be used as a direct replacement for L77SDE09S4F in existing designs?

A: Yes. The L77SDE09SVF maintains identical electrical characteristics (250V, 3A), mechanical configuration (9-position D-Sub receptacle, 1 / DE shell size), termination method (solder cup), and compliance certifications (RoHS, UL94 V-0). Physical substitution is direct.

Q: What is the primary difference between these two parts?

A: The original L77SDE09S4F is obsolete, while L77SDE09SVF maintains active manufacturing status. The substitute part is supplied in tray packaging. All functional and electrical parameters are identical.

Q: Are there any temperature or environmental limitations when substituting these parts?

A: The original part operates from -55°C to 125°C. The substitute part operates from -55°C to 105°C. For applications requiring operation above 105°C, the thermal specification change must be evaluated against system requirements.

Q: Are both parts equally suitable for RoHS-regulated applications?

A: Yes. Both parts carry RoHS Compliant status and UL94 V-0 material flammability ratings, satisfying regulatory requirements for restricted substance content and flammability.

Q: What contact material differences exist between these parts?

A: The original L77SDE09S4F uses Phosphor Bronze contacts. The substitute L77SDE09SVF uses Brass contacts. Both materials are gold-plated (flash thickness) and maintain the same electrical performance and signal contact specifications.

Q: Is this substitute suitable for high-reliability or military applications?

A: Both parts are industrial-grade connectors. Suitability for military or high-reliability applications depends on adherence to specific MIL or aerospace standards, which are not specified in the provided data. Consult application-specific requirements.