AMC52MMST Equivalent & Substitute Parts

Part Overview

The AMC52MMST is a 104-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 part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility while ensuring continued supply availability and compliance with current regulatory standards.

Substiute Parts

AMC52MMST

Sullins Connector SolutionsIn Stock: 1165AMC52MMST Datasheet

Current PartRFQ

RMC52MMST

Sullins Connector SolutionsIn Stock: 790RMC52MMST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete AMC52MMST with the active RMC52MMST is based on equivalence across all critical functional and mechanical parameters. Both connectors maintain identical specifications for:

• Position count and row configuration (104 positions, 2 rows)
• Pitch spacing (0.100" / 2.54mm)
• Gender and card interface type (Male, Fits Female Edgecards)
• Dual read-out functionality
• Contact finish specification (Gold, 30.0µin thickness)
• Solder termination method
• Operating temperature range (-65°C ~ 200°C)
• Insulation material (Polyphenylene Sulfide)
• Flange mounting configuration (Flush Mount, Top Opening, Threaded Insert, 4-40)
• Regulatory compliance (ROHS3 Compliant, REACH Unaffected, MSL 1)

The RMC52MMST represents the direct active equivalent, manufactured by the same supplier with maintained form, fit, and function compatibility.

Parameter Comparison

Engineering Selection Recommendations

The RMC52MMST is the direct active equivalent for the obsolete AMC52MMST. Selection of the RMC52MMST is based on the following engineering criteria:

Product Status and Supply Continuity: The AMC52MMST is classified as obsolete with no ongoing manufacturing. The RMC52MMST maintains active production status, ensuring long-term component availability and supply chain reliability.

Regulatory Compliance: Both parts maintain identical ROHS3 compliance and REACH unaffected status, satisfying current environmental and regulatory requirements. Moisture sensitivity level remains at MSL 1 (Unlimited) for both variants.

Functional Equivalence: All critical electrical and mechanical parameters are maintained across both connectors, including position count, pitch spacing, contact finish specification, operating temperature range, and termination method. The connectors are interchangeable at the functional level for applications requiring 104-position male card edge connectors with 0.100" pitch and dual read-out configuration.

Contact Material Variation: The RMC52MMST employs phosphor bronze contacts in place of beryllium copper. Both materials provide equivalent electrical performance and reliability within the specified operating parameters and contact finish thickness.

Frequently Asked Questions (FAQ)

Q: Can the RMC52MMST directly replace the AMC52MMST in existing designs?

A: Yes. The RMC52MMST maintains identical form, fit, and function specifications across all critical parameters including position count, pitch, gender, card interface type, contact finish, termination method, operating temperature range, and mounting configuration. Direct substitution is supported without design modification.

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

A: Both contact materials provide equivalent electrical conductivity and reliability performance within the specified operating parameters. The contact finish thickness (30.0µin gold plating) is identical for both variants, ensuring equivalent contact resistance and durability characteristics.

Q: Are there any compatibility considerations regarding card thickness?

A: The RMC52MMST specifies a card thickness of 0.062" (1.57mm). This parameter should be verified against the female edgecard dimensions in the target application to ensure proper mechanical fit and electrical contact engagement.

Q: Does the color difference between the parts affect functionality?

A: No. The black color of the RMC52MMST is a cosmetic variation and does not affect electrical performance, mechanical compatibility, or functional operation. Both connectors maintain identical insulation material (Polyphenylene Sulfide) and structural properties.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the AMC52MMST and RMC52MMST are ROHS3 compliant and REACH unaffected. Moisture sensitivity level is MSL 1 (Unlimited) for both variants, indicating no special moisture handling requirements during storage or assembly.

Q: What is the mounting type difference between the parts?

A: The RMC52MMST specifies through-hole mounting, which is the standard solder termination method for card edge connectors. This represents the functional mounting approach for this connector category and does not indicate a compatibility limitation.