L77DDH50SAM4RM6 Equivalent & Substitute Parts

Part Overview

The L77DDH50SAM4RM6 is a 50-position D-Sub receptacle connector manufactured by Amphenol ICC (Commercial Products). This female sockets connector features right-angle solder termination and board-side mounting with 4-40 flange configuration. The connector is actively produced and maintains full RoHS compliance with UL94 V-0 flammability rating. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring 50-position D-Sub receptacle connectivity.

Substiute Parts

L77DDH50SAM4RM6

Amphenol ICC (Commercial Products)In Stock: 769L77DDH50SAM4RM6 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 L77DDH50SAM4RM6 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Connector style: D-Sub
• Connector type: Receptacle, Female Sockets
• Number of positions: 50
• Number of rows: 3
• Shell size: 5 (DD, D)
• Termination method: Solder
• Contact material: Brass
• Contact form: Machined
• Contact finish: Gold

Secondary Compatibility Considerations:

• Mounting type: Through Hole, Right Angle
• Contact type: Signal
• Material flammability rating: UL94 V-0

The substitute part 174-E50-213R001 (NorComp Inc.) satisfies all primary compatibility criteria and maintains equivalent electrical and mechanical interface characteristics. Variations in backset spacing, current rating, operating temperature range, shell material finish, and flange feature design do not preclude functional substitution when application requirements permit tolerance of these parameter differences.

Parameter Comparison

Engineering Selection Recommendations

L77DDH50SAM4RM6 (Amphenol ICC):

• Primary selection for applications requiring maximum current capacity (7.5A) and extended operating temperature range (-55°C to 125°C)
• Specified voltage rating of 300V provides explicit electrical performance documentation
• RoHS Compliant status confirms hazardous substance restrictions compliance
• Tin-plated steel shell provides corrosion resistance in standard industrial environments
• Board-side 4-40 flange mounting configuration

174-E50-213R001 (NorComp Inc.):

• Suitable for applications with current requirements up to 5A and operating temperatures within -50°C to 100°C range
• ROHS3 Compliant status indicates compliance with current and future RoHS directives
• Nickel-plated steel shell offers alternative corrosion resistance characteristics
• Panel mount capability provides additional mounting flexibility beyond through-hole configuration
• Housing/shell unthreaded flange feature differs from board-side 4-40 configuration
• Backset spacing of 0.370" (9.40mm) differs from primary part specification of 0.319" (8.10mm)

Both parts maintain active product status and share identical connector interface specifications for 50-position D-Sub receptacle, female sockets configuration with solder termination.

Frequently Asked Questions (FAQ)

Q: Can the 174-E50-213R001 directly replace the L77DDH50SAM4RM6 in all applications?

A: Direct replacement is possible when application requirements accommodate the parameter differences. The 174-E50-213R001 operates at reduced current capacity (5A versus 7.5A), narrower temperature range (-50°C to 100°C versus -55°C to 125°C), and features different backset spacing (0.370" versus 0.319"). Flange configuration and shell material finish also differ. Verify application specifications before substitution.

Q: What are the key electrical differences between these connectors?

A: The L77DDH50SAM4RM6 specifies 300V rating with 7.5A current capacity. The 174-E50-213R001 specifies 5A current capacity with no documented voltage rating. Both connectors use gold-plated brass contacts and support signal-type applications. Current and voltage requirements must be evaluated against application demands.

Q: How do the mounting configurations differ?

A: The L77DDH50SAM4RM6 features board-side 4-40 flange mounting for through-hole installation. The 174-E50-213R001 supports panel mount, through-hole, and right-angle configurations with housing/shell unthreaded flange. Panel mount capability provides additional installation flexibility for the substitute part.

Q: What is the significance of the backset spacing difference?

A: Backset spacing of 0.319" (8.10mm) for the L77DDH50SAM4RM6 versus 0.370" (9.40mm) for the 174-E50-213R001 affects the distance from the connector mounting surface to the contact plane. This difference impacts PCB layout and component spacing. Verify PCB design compatibility before substitution.

Q: Are both connectors RoHS compliant?

A: Yes. The L77DDH50SAM4RM6 is RoHS Compliant. The 174-E50-213R001 is ROHS3 Compliant, indicating compliance with current and anticipated future RoHS directive revisions. Both parts meet hazardous substance restriction requirements.

Q: What is the difference between tin-plated and nickel-plated shell finishes?

A: The L77DDH50SAM4RM6 features tin-plated steel shell. The 174-E50-213R001 features nickel-plated steel shell. Both finishes provide corrosion resistance. Nickel plating offers enhanced durability in harsh environments, while tin plating provides cost-effective protection in standard industrial applications. Selection depends on environmental exposure requirements.

Q: Can these connectors be used interchangeably in high-temperature applications?

A: The L77DDH50SAM4RM6 operates to 125°C, supporting high-temperature applications. The 174-E50-213R001 operates to 100°C maximum. For applications exceeding 100°C, the L77DDH50SAM4RM6 is required.

Q: What packaging format is available for both parts?

A: Both the L77DDH50SAM4RM6 and 174-E50-213R001 are supplied in tray packaging. Inventory availability differs: L77DDH50SAM4RM6 has 746 pieces in stock; 174-E50-213R001 has 1626 pieces in stock.