L77DDG50SAM4RM6 Equivalent & Substitute Parts

Part Overview

The L77DDG50SAM4RM6 is a 50-position D-Sub receptacle connector manufactured by Amphenol ICC, featuring female sockets with right-angle through-hole solder termination. This connector is classified as an active product with full RoHS compliance and is designed for applications requiring high-density signal distribution in industrial and commercial environments.

Substitute parts are identified when equivalent connectors share the same core functional specifications: 50-position D-Sub receptacle configuration, female socket contact type, right-angle mounting orientation, and solder termination method. Alternative sources become necessary due to inventory availability, supply chain considerations, or specific application requirements within the allowed parameter ranges.

Substiute Parts

L77DDG50SAM4RM6

Amphenol ICC (Commercial Products)In Stock: 1070L77DDG50SAM4RM6 Datasheet

Current PartRFQ

174-E50-213R001

NorComp Inc.In Stock: 1689174-E50-213R001 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the L77DDG50SAM4RM6 is determined by strict alignment with the following core parameters:

Primary Matching Criteria:

• Connector type: Receptacle with female sockets
• Position count: 50 positions
• Row configuration: 3 rows
• Shell size: 5 (DD, D)
• Mounting orientation: Right angle
• Termination: Solder

Secondary Compatibility Parameters:

• Contact material: Brass construction
• Contact finish: Gold plating
• Shell material: Steel base
• Connector style: D-Sub

The substitute part 174-E50-213R001 from NorComp Inc. meets all primary matching criteria. Variations in secondary parameters such as flange feature design (board side versus housing/shell), shell finish (tin plated versus nickel plated), and dielectric material composition do not preclude substitution when the primary functional requirements are satisfied.

Parameter Comparison

Engineering Selection Recommendations

L77DDG50SAM4RM6 (Amphenol ICC) is the primary specification when application requirements include:

• Operating temperature range of -55°C to 125°C
• Current capacity of 7.5A per contact
• Voltage rating of 300V
• Board-side M3 threaded flange mounting
• Tin-plated steel shell finish
• Specified contact finish thickness of 8.00µin

174-E50-213R001 (NorComp Inc.) is a functional equivalent when:

• Operating temperature range of -50°C to 100°C is acceptable
• Current capacity of 5A per contact is sufficient
• Panel mount or unthreaded housing flange is compatible with the application
• Nickel-plated steel shell finish meets environmental requirements
• RoHS3 compliance is required

Both parts carry UL94 V-0 flammability certification and are manufactured from brass contacts with gold plating. Selection between these parts depends on specific application constraints regarding thermal range, current capacity, mounting interface, and regulatory compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can 174-E50-213R001 be used as a direct replacement for L77DDG50SAM4RM6?

A: Both connectors share the same 50-position D-Sub receptacle configuration, female socket contact type, and solder termination. However, differences in current rating (5A versus 7.5A), operating temperature range (-50°C to 100°C versus -55°C to 125°C), and flange mounting design must be evaluated against specific application requirements before substitution.

Q: What are the key differences in flange design between these parts?

A: The L77DDG50SAM4RM6 features a board-side M3 threaded flange for screw-mounted installation. The 174-E50-213R001 uses an unthreaded housing/shell flange suitable for panel mount applications. These mounting interfaces are not interchangeable without mechanical redesign.

Q: Are both parts RoHS compliant?

A: Yes. The L77DDG50SAM4RM6 is RoHS Compliant. The 174-E50-213R001 is ROHS3 Compliant. Both meet current RoHS requirements for lead-free construction.

Q: What is the difference in contact finish thickness?

A: The L77DDG50SAM4RM6 specifies 8.00µin (0.203µm) gold plating thickness. The 174-E50-213R001 uses flash gold plating without specified thickness. Flash plating provides minimal corrosion protection compared to specified thickness plating.

Q: Which part should be selected for high-temperature applications?

A: The L77DDG50SAM4RM6 supports operating temperatures from -55°C to 125°C. The 174-E50-213R001 operates from -50°C to 100°C. Applications requiring operation above 100°C or below -50°C must use the L77DDG50SAM4RM6.

Q: Are there current capacity differences between these connectors?

A: Yes. The L77DDG50SAM4RM6 is rated for 7.5A per contact. The 174-E50-213R001 is rated for 5A per contact. Applications requiring current capacity above 5A per contact must use the L77DDG50SAM4RM6.

Q: What packaging format is available for both parts?

A: Both the L77DDG50SAM4RM6 and 174-E50-213R001 are supplied in tray packaging suitable for automated assembly and component handling.