AMC58MMSD Card Edge Connector Equivalent & Substitute Parts

Part Overview

The AMC58MMSD is a 116-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 AMC58MMSD is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure procurement availability for new applications and legacy system support.

Substiute Parts

AMC58MMSD

Sullins Connector SolutionsIn Stock: 1054AMC58MMSD Datasheet

Current PartRFQ

RMC58MMSD

Sullins Connector SolutionsIn Stock: 1029RMC58MMSD Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete AMC58MMSD with the active RMC58MMSD is based on electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility:

• Identical number of positions (116) and rows (2)
• Matching pitch specification (0.100" / 2.54mm)
• Identical contact finish (gold) and finish thickness (30.0µin / 0.76µm)
• Equivalent operating temperature range (-65°C ~ 200°C)
• Matching termination method (solder)

Mechanical Compatibility:

• Same gender (male) and read-out configuration (dual)
• Identical insulation material (Polyphenylene Sulfide)
• Matching flange feature specifications (flush mount, unthreaded, 0.125" diameter)
• Compatible card edge interface for female edgecards

Compliance Alignment:

• Both parts maintain ROHS3 compliance
• Both parts classified as MSL 1 (unlimited moisture sensitivity)
• Both parts REACH unaffected

The RMC58MMSD represents the direct active successor to the AMC58MMSD within the Sullins Connector Solutions product line, maintaining functional equivalence while offering current procurement availability.

Parameter Comparison

Engineering Selection Recommendations

The RMC58MMSD is the direct active equivalent for the obsolete AMC58MMSD. Both connectors maintain ROHS3 compliance and identical electrical specifications across all critical parameters including position count, pitch, contact finish, and operating temperature range.

The primary differences between these parts are:

Contact Material: The AMC58MMSD uses beryllium copper contacts, while the RMC58MMSD uses phosphor bronze contacts. Both materials provide equivalent electrical performance and durability for card edge connector applications.

Flange Opening Direction: The AMC58MMSD features side opening, while the RMC58MMSD features top opening. This difference affects board layout and assembly orientation but does not impact electrical compatibility.

Mounting Configuration: The RMC58MMSD specifies through-hole mounting, providing defined mechanical installation methodology.

Card Thickness Specification: The RMC58MMSD specifies 0.062" (1.57mm) card thickness compatibility, establishing explicit mechanical interface parameters.

For applications currently using the AMC58MMSD, the RMC58MMSD provides direct functional substitution with active procurement status and current manufacturing support from Sullins Connector Solutions.

Frequently Asked Questions (FAQ)

Q: Can the RMC58MMSD directly replace the AMC58MMSD in existing designs?

A: The RMC58MMSD is electrically compatible with the AMC58MMSD across all critical parameters including position count, pitch, contact finish, and operating temperature. Physical layout differences (flange opening direction and mounting type) require verification against specific board design requirements.

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

A: Both contact materials provide equivalent electrical conductivity and durability for card edge connector applications. Phosphor bronze, used in the RMC58MMSD, offers established performance in high-cycle insertion applications and is widely used in current connector designs.

Q: Does the RMC58MMSD support the same card thickness as the AMC58MMSD?

A: The RMC58MMSD specifies 0.062" (1.57mm) card thickness. The AMC58MMSD does not specify card thickness in available documentation. Verification against your specific card thickness is required.

Q: Are both connectors RoHS compliant?

A: Yes, both the AMC58MMSD and RMC58MMSD are ROHS3 compliant and carry MSL 1 (unlimited) moisture sensitivity classification.

Q: What is the difference between side opening and top opening flange features?

A: Side opening (AMC58MMSD) and top opening (RMC58MMSD) refer to the direction of card insertion relative to the connector body. This affects board layout orientation and assembly procedures but does not impact electrical performance.

Q: Is the RMC58MMSD currently available for procurement?

A: Yes, the RMC58MMSD is classified as active product status with current manufacturing support from Sullins Connector Solutions, unlike the obsolete AMC58MMSD.