AMC40MMSD Card Edge Connector Equivalent & Substitute Parts

Part Overview

The AMC40MMSD is an 80-position male card edge connector manufactured by Sullins Connector Solutions, designed to interface with female edgecards at 0.100" (2.54mm) pitch. This connector features dual read-out configuration, gold-plated beryllium copper contacts, and operates across -65°C to 200°C. The AMC40MMSD is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability for new production and field service applications.

Substiute Parts

AMC40MMSD

Sullins Connector SolutionsIn Stock: 649AMC40MMSD Datasheet

Current PartRFQ

RMC40MMSD

Sullins Connector SolutionsIn Stock: 1213RMC40MMSD Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete AMC40MMSD with the active RMC40MMSD is based on electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility:

• Identical connector type (card edge, male)
• Identical position count (80 positions, 40 per row, 2 rows)
• Identical pitch specification (0.100" / 2.54mm)
• Identical contact finish specification (gold, 30.0µin / 0.76µm)
• Identical operating temperature range (-65°C to 200°C)
• Identical termination method (solder)
• Identical insulation material (Polyphenylene Sulfide)
• Identical read-out configuration (dual)

Mechanical Compatibility:

• Identical flange feature diameter (0.125" / 3.18mm, unthreaded)
• Identical interface with female edgecards

Compliance Equivalence:

• Both parts maintain ROHS3 compliance
• Both parts maintain MSL 1 (Unlimited) rating
• Both parts are REACH unaffected

The RMC40MMSD differs from the AMC40MMSD in contact material (phosphor bronze versus beryllium copper), flange opening orientation (top opening versus side opening), mounting type specification (through hole versus unspecified), and color designation (black versus unspecified). These differences do not affect functional substitution in applications where the AMC40MMSD was previously specified.

Parameter Comparison

Engineering Selection Recommendations

The RMC40MMSD is the direct active equivalent for the obsolete AMC40MMSD. Selection of the RMC40MMSD is supported by the following factors:

Product Status: The RMC40MMSD maintains active product status with confirmed inventory availability (1161 pieces in stock), whereas the AMC40MMSD is obsolete. Active status ensures continued supply chain support and manufacturing consistency.

Compliance Certification: Both parts maintain identical ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and production applications.

Electrical and Mechanical Specifications: The RMC40MMSD preserves all critical electrical parameters including connector type, position count, pitch, contact finish specification, operating temperature range, termination method, and insulation material. Mechanical interface compatibility with female edgecards is maintained through identical flange diameter and unthreaded configuration.

Moisture Sensitivity: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints during storage, handling, or assembly.

The RMC40MMSD is suitable for direct substitution in applications previously specified with the AMC40MMSD without modification to PCB layout, female edgecard interface, or electrical circuit design.

Frequently Asked Questions (FAQ)

Q: Can the RMC40MMSD directly replace the AMC40MMSD in existing designs?

A: Yes. The RMC40MMSD is electrically and mechanically compatible with the AMC40MMSD. Both connectors maintain identical position count (80), pitch (0.100"), contact finish (gold, 30.0µin), operating temperature range (-65°C to 200°C), termination method (solder), and insulation material (PPS). No design modifications are required.

Q: What is the difference between beryllium copper and phosphor bronze contact materials?

A: The AMC40MMSD uses beryllium copper contacts, while the RMC40MMSD uses phosphor bronze contacts. Both materials are suitable for card edge connector applications and maintain the specified gold finish. The contact material difference does not affect functional compatibility in standard applications.

Q: Does the flange opening orientation difference (side opening versus top opening) affect compatibility?

A: The flange opening orientation difference reflects design variations between the obsolete and active product lines. Both configurations maintain flush mount, unthreaded 0.125" diameter flanges. Compatibility with female edgecards is preserved. Verify mechanical clearance in your specific PCB layout if space constraints exist around the connector.

Q: Are there any moisture sensitivity concerns with the RMC40MMSD?

A: No. The RMC40MMSD carries MSL 1 (Unlimited) rating, identical to the AMC40MMSD. This rating indicates no moisture sensitivity constraints during storage, handling, or assembly processes.

Q: What is the inventory status of the RMC40MMSD?

A: The RMC40MMSD is in active production with 1161 pieces currently in stock, ensuring supply chain availability for new production and field service applications.

Q: Are both parts RoHS compliant?

A: Yes. Both the AMC40MMSD and RMC40MMSD are ROHS3 compliant and REACH unaffected, satisfying regulatory requirements for electronic component applications.

Q: What is the card thickness specification for the RMC40MMSD?

A: The RMC40MMSD is specified for 0.062" (1.57mm) card thickness. Verify that your female edgecard thickness matches this specification to ensure proper connector engagement.