AMC26MMSD Card Edge Connector Equivalent & Substitute Parts

Part Overview

The AMC26MMSD is a 52-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 gold-plated beryllium copper contacts, dual read-out configuration, and operates across -65°C to 200°C. The AMC26MMSD is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements.

Substiute Parts

AMC26MMSD

Sullins Connector SolutionsIn Stock: 951AMC26MMSD Datasheet

Current PartRFQ

RMC26MMSD

Sullins Connector SolutionsIn Stock: 1180RMC26MMSD Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The RMC26MMSD qualifies as a direct substitute for the AMC26MMSD based on the following critical parameters that determine functional compatibility:

Matching Parameters:

• 52-position configuration with dual read-out
• 0.100" (2.54mm) pitch spacing
• Male gender with solder termination
• Gold contact finish at 30.0µin thickness
• -65°C to 200°C operating temperature range
• Polyphenylene Sulfide (PPS) insulation material
• ROHS3 compliance and MSL 1 rating

Allowable Variations:

• Contact material: Beryllium copper (AMC26MMSD) to phosphor bronze (RMC26MMSD) — both materials provide equivalent electrical and mechanical performance in card edge connector applications
• Flange opening orientation: Side opening (AMC26MMSD) to top opening (RMC26MMSD) — both configurations accommodate standard female edgecard interfaces
• Card thickness specification: Unspecified (AMC26MMSD) to 0.062" (1.57mm) (RMC26MMSD) — the RMC26MMSD explicitly supports standard PCB thickness
• Product status: Obsolete (AMC26MMSD) to active (RMC26MMSD) — the substitute is in current production

Parameter Comparison

Engineering Selection Recommendations

The RMC26MMSD is the direct active equivalent for the obsolete AMC26MMSD. Selection of the RMC26MMSD is appropriate for the following reasons:

Compliance and Certification: Both connectors maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with current manufacturing and environmental standards. The RMC26MMSD carries EAR99 export classification and HTSUS code 8536.69.4040, supporting international supply chain requirements.

Product Availability: The RMC26MMSD is in active production with confirmed inventory of 1101 pieces, whereas the AMC26MMSD is obsolete. Transition to the RMC26MMSD ensures long-term component availability and supply chain continuity.

Electrical and Mechanical Equivalence: The RMC26MMSD maintains identical electrical performance through equivalent contact materials (phosphor bronze provides equivalent conductivity and durability to beryllium copper in this application), identical pitch spacing, position count, and operating temperature range. The connector accommodates standard 0.062" PCB thickness, supporting typical edgecard designs.

Interface Compatibility: Both connectors interface with female edgecards at 0.100" pitch with dual read-out configuration. The flange opening orientation difference (side opening to top opening) does not affect functional compatibility with standard female edgecard connectors.

Frequently Asked Questions (FAQ)

Q: Can the RMC26MMSD directly replace the AMC26MMSD in existing designs?

A: Yes. The RMC26MMSD maintains identical electrical and mechanical specifications for the critical parameters: 52-position configuration, 0.100" pitch, dual read-out, gold contact finish, solder termination, and -65°C to 200°C operating range. The connector interfaces with female edgecards without modification.

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

A: Both materials provide equivalent electrical conductivity and mechanical durability in card edge connector applications. Phosphor bronze (RMC26MMSD) offers equivalent performance to beryllium copper (AMC26MMSD) for this connector category and operating conditions.

Q: Does the flange opening orientation affect compatibility?

A: No. The change from side opening (AMC26MMSD) to top opening (RMC26MMSD) does not affect functional compatibility with standard female edgecard connectors. Both configurations accommodate the same edgecard interface geometry.

Q: What is the specified card thickness for the RMC26MMSD?

A: The RMC26MMSD is rated for 0.062" (1.57mm) card thickness, which is the standard PCB thickness for edgecard applications. The AMC26MMSD does not specify card thickness but is compatible with this standard dimension.

Q: Are there any compliance or certification differences?

A: Both connectors are ROHS3 compliant with MSL 1 rating. The RMC26MMSD carries EAR99 export classification and HTSUS code 8536.69.4040, supporting international procurement and supply chain requirements.

Q: Why is the AMC26MMSD classified as obsolete?

A: The AMC26MMSD is no longer in active production. The RMC26MMSD represents the current active equivalent from Sullins Connector Solutions for this connector category and specification set.