AMC43MMST Card Edge Connector Equivalent & Substitute Parts

Part Overview

The AMC43MMST is an 86-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 AMC43MMST is classified as obsolete product status, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and field service applications.

Substiute Parts

AMC43MMST

Sullins Connector SolutionsIn Stock: 996AMC43MMST Datasheet

Current PartRFQ

RMC43MMST

Sullins Connector SolutionsIn Stock: 1038RMC43MMST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete AMC43MMST with the active RMC43MMST is based on electrical and mechanical parameter equivalence within the card edge connector category. Both connectors maintain identical specifications for the following critical parameters: 86-position configuration, 0.100" (2.54mm) pitch, male gender, dual read-out, 2-row arrangement, solder termination, gold contact finish at 30.0µin thickness, -65°C to 200°C operating temperature range, PPS insulation material, flush mount with top opening and 4-40 threaded insert flange, ROHS3 compliance, and MSL 1 rating.

The RMC43MMST qualifies as a direct substitute based on these matched parameters. Differences in contact material (phosphor bronze versus beryllium copper), card thickness specification (0.062" defined versus unspecified), color designation (black versus unspecified), and mounting type classification (through hole versus unspecified) do not preclude functional equivalence for standard card edge connector applications. Both connectors are manufactured by Sullins Connector Solutions and share the same base product family designation structure.

Parameter Comparison

Engineering Selection Recommendations

The RMC43MMST is the appropriate substitute for the obsolete AMC43MMST based on product status and regulatory compliance alignment. The AMC43MMST carries obsolete designation, indicating discontinued manufacturing and limited availability. The RMC43MMST maintains active product status with confirmed inventory availability (1028 pieces in stock), ensuring supply chain continuity for production and service applications.

Both connectors satisfy ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. The RMC43MMST carries ECCN EAR99 classification with defined HTSUS code 8536.69.4040, providing complete export control and tariff documentation for procurement and logistics purposes.

Selection of the RMC43MMST eliminates obsolescence risk while maintaining electrical and mechanical compatibility with existing female edgecard interfaces specified for 86-position, 0.100" pitch male connectors.

Frequently Asked Questions (FAQ)

Q: Can the RMC43MMST directly replace the AMC43MMST in existing designs?

A: Yes. Both connectors share identical electrical and mechanical specifications for position count (86), pitch (0.100"), gender (male), row configuration (2), termination method (solder), contact finish (gold at 30.0µin), operating temperature range (-65°C to 200°C), insulation material (PPS), and flange mounting features (flush mount, top opening, 4-40 threaded insert). These parameters define functional compatibility with female edgecard interfaces.

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

A: The AMC43MMST uses beryllium copper contacts, while the RMC43MMST uses phosphor bronze contacts. Both materials are suitable for gold-plated card edge connector applications and maintain the specified 30.0µin gold finish thickness. Contact material selection does not affect compatibility with standard female edgecard receptacles.

Q: Does the RMC43MMST specify card thickness while the AMC43MMST does not?

A: The RMC43MMST specifies 0.062" (1.57mm) card thickness. This specification defines the physical dimension of the edgecard that the connector accommodates. Both connectors are designed to interface with female edgecards at the specified pitch and position count. The defined card thickness in the RMC43MMST provides explicit dimensional compatibility information for design verification.

Q: Are there compliance or regulatory differences between these parts?

A: Both connectors are ROHS3 compliant and REACH unaffected. The RMC43MMST includes ECCN EAR99 classification and HTSUS code 8536.69.4040, providing complete export control and tariff documentation. These designations do not affect functional performance but are required for procurement and international logistics.

Q: Why is the AMC43MMST classified as obsolete?

A: Obsolete classification indicates that the manufacturer has discontinued production of this connector model. The RMC43MMST represents the active equivalent within the Sullins Connector Solutions product line, with confirmed manufacturing and inventory availability.

Q: What is the significance of the color designation (black) for the RMC43MMST?

A: The black color designation refers to the insulation body color of the connector. This is a cosmetic and identification feature that does not affect electrical or mechanical performance. Both connectors maintain identical functional specifications regardless of insulation color.