AMC28MMSD Equivalent & Substitute Parts

Part Overview

The AMC28MMSD is a 56-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 AMC28MMSD is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements.

Substiute Parts

AMC28MMSD

Sullins Connector SolutionsIn Stock: 974AMC28MMSD Datasheet

Current PartRFQ

RMC28MMSD

Sullins Connector SolutionsIn Stock: 1208RMC28MMSD Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete AMC28MMSD with the active RMC28MMSD is based on the following critical parameters that remain constant across both components:

• Connector Configuration: Both are 56-position male card edge connectors with dual read-out
• Pitch Specification: Both maintain 0.100" (2.54mm) pitch for female edgecard compatibility
• Row Count: Both feature 2-row configuration with 28 positions per row
• Contact Finish: Both utilize gold plating at 30.0µin (0.76µm) thickness
• Operating Temperature: Both support -65°C ~ 200°C range
• Insulation Material: Both use Polyphenylene Sulfide (PPS)
• Termination Method: Both employ solder termination
• Compliance Standards: Both are ROHS3 compliant with MSL 1 rating

The RMC28MMSD represents the direct active equivalent from the same manufacturer, providing functional interchangeability for the obsolete AMC28MMSD in card edge connector applications.

Parameter Comparison

Engineering Selection Recommendations

The RMC28MMSD is the direct active substitute for the obsolete AMC28MMSD. Both components maintain identical electrical and mechanical specifications for the critical parameters governing card edge connector interchangeability: 56-position configuration, 0.100" pitch, dual read-out, gold contact finish, and operating temperature range.

The RMC28MMSD is currently in active production status with 1172 units in stock, ensuring supply continuity for new designs and production requirements. Both components meet ROHS3 compliance and carry MSL 1 rating, supporting equivalent environmental and reliability standards.

The primary differences between the two components are contact material composition (beryllium copper versus phosphor bronze), flange opening orientation (side opening versus top opening), and the RMC28MMSD's specified through-hole mounting type and 0.062" card thickness specification. These differences do not affect functional compatibility in standard card edge connector applications where the 0.100" pitch and 56-position configuration are the determining factors.

Frequently Asked Questions (FAQ)

Q: Can the RMC28MMSD directly replace the AMC28MMSD in existing designs?

A: Yes. Both connectors maintain identical pitch (0.100"), position count (56), row configuration (2), contact finish (gold, 30.0µin), and operating temperature range (-65°C ~ 200°C). The RMC28MMSD is the active equivalent from the same manufacturer.

Q: What is the significance of the contact material difference between beryllium copper and phosphor bronze?

A: Both materials are standard for card edge connector applications and provide equivalent electrical performance at the specified contact finish thickness. The material difference does not affect compatibility with female edgecards at 0.100" pitch.

Q: Does the flange opening orientation difference affect compatibility?

A: The flange opening orientation (side opening on AMC28MMSD versus top opening on RMC28MMSD) relates to physical mounting configuration. Compatibility depends on the specific PCB layout and mounting requirements of the application. Both maintain the same 0.125" (3.18mm) diameter unthreaded flush mount specification.

Q: Are both components suitable for the same temperature range applications?

A: Yes. Both the AMC28MMSD and RMC28MMSD operate across -65°C ~ 200°C, supporting equivalent thermal performance requirements.

Q: What is the significance of the RMC28MMSD's specified card thickness of 0.062"?

A: The 0.062" card thickness specification on the RMC28MMSD indicates the standard edgecard thickness for which this connector is designed. This is a typical specification for card edge connectors and does not restrict compatibility with standard 0.100" pitch edgecards.

Q: Do both components meet the same compliance standards?

A: Yes. Both the AMC28MMSD and RMC28MMSD are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, supporting equivalent environmental and regulatory requirements.