AMC48MMST Equivalent & Substitute Parts

Part Overview

The AMC48MMST is a 96-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 a temperature range of -65°C to 200°C. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility while meeting current supply chain requirements.

Substiute Parts

AMC48MMST

Sullins Connector SolutionsIn Stock: 1110AMC48MMST Datasheet

Current PartRFQ

RMC48MMST

Sullins Connector SolutionsIn Stock: 1176RMC48MMST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete AMC48MMST with the active RMC48MMST is based on alignment of critical electrical and mechanical parameters that define functional compatibility in card edge connector applications. The substitute part maintains identical specifications across the following parameters: 96-position configuration, 2-row arrangement, 0.100" (2.54mm) pitch, male gender, female edgecard interface, dual read-out, solder termination, gold contact finish at 30.0µin thickness, -65°C to 200°C operating temperature range, PPS insulation material, flush mount with threaded insert configuration, ROHS3 compliance, and MSL 1 rating.

The RMC48MMST differs from the AMC48MMST in the following parameters: contact material (phosphor bronze versus beryllium copper), specified card thickness (0.062" versus unspecified), connector color (black versus unspecified), mounting type designation (through hole versus unspecified), and product status (active versus obsolete). These differences do not preclude functional substitution within standard card edge connector applications.

Parameter Comparison

Engineering Selection Recommendations

The RMC48MMST serves as the direct active equivalent for the obsolete AMC48MMST. Selection of the RMC48MMST is supported by the following factors:

The RMC48MMST maintains active product status with current manufacturing availability, whereas the AMC48MMST is classified as obsolete. Both connectors achieve ROHS3 compliance and carry identical MSL 1 ratings, satisfying regulatory and environmental requirements for new designs and legacy system updates.

The electrical and mechanical interface specifications are functionally equivalent across all critical parameters: connector geometry, position count, pitch, gender, termination method, contact finish specification, and operating temperature envelope. The PPS insulation material and flush mount configuration with threaded insert design ensure mechanical compatibility with existing female edgecard interfaces.

The phosphor bronze contact material in the RMC48MMST provides equivalent electrical performance to the beryllium copper contacts in the AMC48MMST for standard card edge connector applications. The specified card thickness of 0.062" (1.57mm) in the RMC48MMST represents a standard edgecard thickness and does not restrict compatibility with typical female edgecard designs.

Frequently Asked Questions (FAQ)

Q: Can the RMC48MMST directly replace the AMC48MMST in existing applications?

A: The RMC48MMST is functionally compatible with the AMC48MMST across all critical electrical and mechanical parameters. Both connectors feature identical position counts, pitch, gender, termination method, contact finish, operating temperature range, and insulation material. The RMC48MMST is the active equivalent for the obsolete AMC48MMST.

Q: What is the difference between the contact materials in these two connectors?

A: The AMC48MMST uses beryllium copper contacts, while the RMC48MMST uses phosphor bronze contacts. Both materials provide suitable electrical conductivity and contact reliability for card edge connector applications. The contact finish thickness is identical at 30.0µin (0.76µm) for both parts.

Q: Does the specified card thickness of 0.062" in the RMC48MMST affect compatibility?

A: The RMC48MMST is specified for 0.062" (1.57mm) card thickness, which represents a standard edgecard thickness. This specification does not restrict compatibility with typical female edgecard designs and does not affect the connector's ability to interface with standard edgecards.

Q: Are both connectors compliant with current regulatory standards?

A: Both the AMC48MMST and RMC48MMST are ROHS3 compliant and carry MSL 1 ratings. The RMC48MMST holds active product status with current manufacturing support, while the AMC48MMST is obsolete.

Q: What is the significance of the dual read-out configuration?

A: The dual read-out configuration in both connectors indicates a 2-row arrangement of 48 positions per row, totaling 96 positions. This configuration is maintained in the RMC48MMST substitute.

Q: How do the mounting specifications differ between these connectors?

A: The AMC48MMST does not specify a mounting type designation, while the RMC48MMST is designated as through hole. Both connectors feature flush mount configuration with top opening and threaded insert (4-40) for mechanical attachment.