AMC18MMSD Card Edge Connector Equivalent & Substitute Parts

Part Overview

The AMC18MMSD is a 36-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 with gold-plated beryllium copper contacts and operates across -65°C to 200°C. The AMC18MMSD is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements.

Substiute Parts

AMC18MMSD

Sullins Connector SolutionsIn Stock: 1171AMC18MMSD Datasheet

Current PartRFQ

RMC18MMSD

Sullins Connector SolutionsIn Stock: 1063RMC18MMSD Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AMC18MMSD with the RMC18MMSD is based on alignment of the following critical parameters:

Matching Parameters:

• Connector type: Card edge, male gender
• Position count: 36 positions (18 positions per row, 2 rows)
• Pitch specification: 0.100" (2.54mm)
• Read-out configuration: Dual
• Termination method: Solder
• Contact finish: Gold at 30.0µin (0.76µm) thickness
• Operating temperature range: -65°C ~ 200°C
• Insulation material: Polyphenylene Sulfide (PPS)
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected
• Moisture sensitivity: MSL 1 (Unlimited)

Differing Parameters:

• Product status: AMC18MMSD (Obsolete) vs. RMC18MMSD (Active)
• Contact material: Beryllium Copper vs. Phosphor Bronze
• Card thickness specification: Not specified vs. 0.062" (1.57mm)
• Flange opening orientation: Side Opening vs. Top Opening
• Mounting type: Not specified vs. Through Hole
• Color: Not specified vs. Black
• ECCN classification: OBSOLETE vs. EAR99

The RMC18MMSD functions as a direct substitute for the obsolete AMC18MMSD in applications requiring 36-position male card edge connectors with 0.100" pitch and dual read-out configuration.

Parameter Comparison

Engineering Selection Recommendations

The RMC18MMSD is the active equivalent for the obsolete AMC18MMSD. Both connectors maintain identical electrical and mechanical specifications for the core functional parameters: 36-position male configuration, 0.100" pitch, dual read-out, solder termination, and gold contact finish at 30.0µin thickness.

Both parts satisfy ROHS3 compliance and REACH requirements with MSL 1 rating, ensuring compatibility with modern manufacturing and environmental standards. The RMC18MMSD carries active product status with EAR99 ECCN classification, supporting ongoing procurement and supply chain continuity.

The contact material difference (beryllium copper versus phosphor bronze) and flange opening orientation (side versus top) represent design refinements in the active part. The RMC18MMSD specifies 0.062" card thickness and through-hole mounting, providing explicit mechanical interface parameters for design integration.

Selection of the RMC18MMSD for new designs and production applications eliminates obsolescence risk while maintaining functional equivalence across all critical connector parameters.

Frequently Asked Questions (FAQ)

Q: Can the RMC18MMSD directly replace the AMC18MMSD in existing applications?

A: The RMC18MMSD functions as a direct substitute for the AMC18MMSD. Both connectors share identical position count (36), pitch (0.100"), read-out configuration (dual), termination method (solder), contact finish (gold), and operating temperature range (-65°C ~ 200°C). The primary distinction is product status: AMC18MMSD is obsolete while RMC18MMSD is active.

Q: What are the key compatibility parameters for card edge connector substitution?

A: Substitution compatibility is determined by: number of positions, pitch specification, gender (male/female), read-out configuration, termination type, contact finish material and thickness, operating temperature range, and insulation material. Both the AMC18MMSD and RMC18MMSD align on all these parameters.

Q: How do the contact materials differ between these connectors?

A: The AMC18MMSD uses beryllium copper contacts while the RMC18MMSD uses phosphor bronze contacts. Both materials are gold-plated at 30.0µin (0.76µm) thickness. This material difference does not affect functional compatibility for standard card edge connector applications.

Q: What is the significance of the flange opening orientation difference?

A: The AMC18MMSD features side opening while the RMC18MMSD features top opening. Both maintain flush mount configuration with 0.125" (3.18mm) diameter unthreaded flanges. The opening orientation affects mechanical assembly approach but does not impact electrical performance or connector interface compatibility.

Q: Are both connectors compliant with current regulatory standards?

A: Yes. Both the AMC18MMSD and RMC18MMSD are ROHS3 compliant and REACH unaffected. Both carry MSL 1 (Unlimited) moisture sensitivity rating, suitable for standard manufacturing and storage environments without special handling requirements.

Q: What is the specified card thickness for these connectors?

A: The RMC18MMSD specifies 0.062" (1.57mm) card thickness. The AMC18MMSD does not provide explicit card thickness specification in available documentation. The RMC18MMSD specification provides definitive mechanical interface parameters for design integration.

Q: Why is the AMC18MMSD classified as obsolete?

A: The AMC18MMSD carries obsolete product status, indicating discontinued manufacturing and limited availability. The RMC18MMSD represents the active equivalent, ensuring supply chain continuity and supporting long-term production requirements.