AMC20MMST Equivalent & Substitute Parts

Part Overview

The AMC20MMST is a 40-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 with existing applications.

Substiute Parts

AMC20MMST

Sullins Connector SolutionsIn Stock: 808AMC20MMST Datasheet

Current PartRFQ

RMC20MMST

Sullins Connector SolutionsIn Stock: 1024RMC20MMST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete AMC20MMST is based on strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 40
• Gender: Male
• Pitch: 0.100" (2.54mm)
• Number of Rows: 2
• Read Out: Dual
• Contact Finish: Gold
• Contact Finish Thickness: 30.0µin (0.76µm)
• Termination: Solder
• Operating Temperature Range: -65°C ~ 200°C
• Material - Insulation: Polyphenylene Sulfide (PPS)
• Flange Feature: Flush Mount, Top Opening, Threaded Insert, 4-40
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The RMC20MMST meets all mandatory parameters for direct substitution. Variations in contact material (phosphor bronze versus beryllium copper), color designation (black), and mounting type classification do not affect functional compatibility with female edgecard interfaces at the specified pitch and position configuration.

Parameter Comparison

Engineering Selection Recommendations

The RMC20MMST is the direct active equivalent for the obsolete AMC20MMST. Both connectors are manufactured by Sullins Connector Solutions and maintain identical electrical and mechanical specifications across all critical parameters: 40-position dual read-out configuration, 0.100" pitch, gold contact finish at 30.0µin thickness, solder termination, PPS insulation, and identical flange mounting features.

Both parts satisfy ROHS3 compliance and MSL Level 1 requirements. The RMC20MMST is currently in active production status with 930 pieces available in inventory, whereas the AMC20MMST is obsolete with limited stock. The contact material difference (phosphor bronze in RMC20MMST versus beryllium copper in AMC20MMST) and color designation do not affect functional compatibility with standard female edgecard interfaces.

Frequently Asked Questions (FAQ)

Q: Can the RMC20MMST directly replace the AMC20MMST in existing applications?

A: Yes. The RMC20MMST maintains identical electrical and mechanical specifications across all critical parameters including position count, pitch, row configuration, contact finish thickness, operating temperature range, and mounting features. Both connectors interface with female edgecards at 0.100" pitch with dual read-out configuration.

Q: What is the significance of the contact material difference between the two parts?

A: The AMC20MMST uses beryllium copper contacts while the RMC20MMST uses phosphor bronze contacts. Both materials are standard for card edge connectors and provide equivalent electrical performance and durability for solder-terminated applications within the specified operating temperature range.

Q: Are there any compliance or certification differences between these parts?

A: Both parts are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity ratings. The RMC20MMST carries ECCN EAR99 classification and HTSUS code 8536.69.4040, while the AMC20MMST is marked as OBSOLETE for ECCN purposes. These differences do not affect functional compatibility.

Q: What is the card thickness specification for the RMC20MMST?

A: The RMC20MMST is specified for 0.062" (1.57mm) card thickness. The AMC20MMST does not include a card thickness specification in available documentation. Verify that your application uses edgecards within this thickness range.

Q: Why is the AMC20MMST classified as obsolete?

A: The AMC20MMST is no longer in active production. The RMC20MMST serves as the current active equivalent from Sullins Connector Solutions for new designs and replacement applications.