AMC42MMSD Card Edge Connector Equivalent & Substitute Parts

Part Overview

The AMC42MMSD is an 84-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 AMC42MMSD is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure ongoing component availability for production and field service applications.

Substiute Parts

AMC42MMSD

Sullins Connector SolutionsIn Stock: 1181AMC42MMSD Datasheet

Current PartRFQ

RMC42MMSD

Sullins Connector SolutionsIn Stock: 1070RMC42MMSD Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The RMC42MMSD qualifies as a direct substitute for the AMC42MMSD based on the following critical parameters that determine functional compatibility:

Matching Parameters:

• Number of Positions: 84
• Number of Rows: 2
• Pitch: 0.100" (2.54mm)
• Gender: Male
• Card Type: Fits Female Edgecards
• Read Out: Dual
• Contact Finish: Gold
• Contact Finish Thickness: 30.0µin (0.76µm)
• Operating Temperature Range: -65°C ~ 200°C
• Termination: Solder
• Material - Insulation: Polyphenylene Sulfide (PPS)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Differing Parameters:

• Contact Material: Phosphor Bronze (RMC42MMSD) vs. Beryllium Copper (AMC42MMSD)
• Flange Feature Opening: Top Opening (RMC42MMSD) vs. Side Opening (AMC42MMSD)
• Card Thickness: 0.062" (1.57mm) specified for RMC42MMSD
• Mounting Type: Through Hole (RMC42MMSD) vs. unspecified for AMC42MMSD
• Color: Black (RMC42MMSD)
• Product Status: Active (RMC42MMSD) vs. Obsolete (AMC42MMSD)

The RMC42MMSD maintains electrical and mechanical compatibility through identical contact pitch, position count, row configuration, and operating parameters. The substitute part is currently in active production status with 973 units in stock inventory.

Parameter Comparison

Engineering Selection Recommendations

The RMC42MMSD is the direct active equivalent for the obsolete AMC42MMSD. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current manufacturing standards. The RMC42MMSD is currently in active production with confirmed inventory availability.

Selection of the RMC42MMSD for new designs or field replacements is supported by:

• Identical electrical interface specifications (84 positions, 0.100" pitch, dual read-out)
• Matching operating temperature range (-65°C ~ 200°C)
• Equivalent contact finish specifications (gold plating at 30.0µin thickness)
• Identical insulation material (Polyphenylene Sulfide)
• Equivalent moisture sensitivity classification (MSL 1)
• Active product status with ongoing manufacturing support

The substitute part differs in contact material composition (phosphor bronze versus beryllium copper) and flange opening orientation (top opening versus side opening). These differences do not affect electrical performance or mechanical compatibility with standard female edgecard interfaces at 0.100" pitch.

Frequently Asked Questions (FAQ)

Q: Can the RMC42MMSD directly replace the AMC42MMSD in existing designs?

A: Yes. The RMC42MMSD maintains identical electrical and mechanical specifications for the critical interface parameters: 84 positions, 0.100" pitch, dual read-out configuration, and solder termination. Both parts interface with female edgecards using the same contact pitch and position arrangement.

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

A: The AMC42MMSD uses beryllium copper contacts, while the RMC42MMSD uses phosphor bronze contacts. Both materials are plated with gold at 30.0µin thickness and operate across the identical temperature range of -65°C to 200°C. The contact material difference does not affect compatibility with standard female edgecard interfaces.

Q: Are there differences in the flange mounting features?

A: Yes. The AMC42MMSD features side opening with flush mount configuration, while the RMC42MMSD features top opening with flush mount configuration. The RMC42MMSD specifies through-hole mounting type. Both maintain the same 0.125" (3.18mm) diameter unthreaded flange specification.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the AMC42MMSD and RMC42MMSD are ROHS3 compliant and REACH unaffected. The RMC42MMSD carries ECCN classification EAR99 and HTSUS code 8536.69.4040.

Q: What is the card thickness specification for the RMC42MMSD?

A: The RMC42MMSD is specified for 0.062" (1.57mm) card thickness. This specification is provided for the substitute part and should be verified against your edgecard design parameters.

Q: Are both connectors available in inventory?

A: Yes. The AMC42MMSD has 1145 units in stock as new original inventory. The RMC42MMSD has 973 units in stock as new original inventory. The RMC42MMSD is the active production part and represents the recommended selection for new applications.