AMC56MMST Equivalent & Substitute Parts

Part Overview

The AMC56MMST is a 112-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 AMC56MMST is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements.

Substiute Parts

AMC56MMST

Sullins Connector SolutionsIn Stock: 1108AMC56MMST Datasheet

Current PartRFQ

RMC56MMST

Sullins Connector SolutionsIn Stock: 826RMC56MMST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete AMC56MMST with the active RMC56MMST is based on alignment of the following critical parameters:

Matching Parameters:

• Connector category: Card edge connector, male gender
• Position count: 112 positions (56 per row, 2 rows)
• Pitch specification: 0.100" (2.54mm)
• Read-out configuration: Dual
• Contact finish: Gold plating at 30.0µin (0.76µm)
• Operating temperature range: -65°C to 200°C
• Insulation material: Polyphenylene Sulfide (PPS)
• Termination method: Solder
• Flange feature: Flush Mount, Top Opening, Threaded Insert, 4-40
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected, MSL 1

Differing Parameters:

• Contact material: Beryllium copper (AMC56MMST) versus phosphor bronze (RMC56MMST)
• Card thickness specification: Not specified (AMC56MMST) versus 0.062" (1.57mm) (RMC56MMST)
• Mounting type: Not specified (AMC56MMST) versus through hole (RMC56MMST)
• Color: Not specified (AMC56MMST) versus black (RMC56MMST)
• Product status: Obsolete (AMC56MMST) versus active (RMC56MMST)

The RMC56MMST maintains functional and electrical equivalence through identical pitch, position count, contact finish specification, temperature rating, and insulation material. The contact material change from beryllium copper to phosphor bronze does not affect the connector's ability to perform the same electrical function within the specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

The RMC56MMST serves as the direct active equivalent for the obsolete AMC56MMST. Selection of the RMC56MMST is supported by the following factors:

Regulatory and Compliance Alignment: Both connectors maintain ROHS3 compliance and REACH unaffected status, ensuring compatibility with current environmental and regulatory requirements. The RMC56MMST carries ECCN EAR99 classification and HTSUS code 8536.69.4040, indicating standard commercial availability.

Functional Equivalence: Identical electrical and mechanical specifications across pitch, position count, contact finish thickness, operating temperature range, and insulation material establish direct functional compatibility. The connector maintains the same flange configuration and solder termination method.

Product Lifecycle Status: The RMC56MMST is classified as active product, ensuring ongoing availability and supply chain continuity. The AMC56MMST obsolete status necessitates transition to an active equivalent for new designs and production continuity.

Contact Material Consideration: The phosphor bronze contact material in the RMC56MMST provides equivalent electrical performance to the beryllium copper contacts in the AMC56MMST within the specified operating parameters and contact finish specification.

Frequently Asked Questions (FAQ)

Q: Can the RMC56MMST directly replace the AMC56MMST in existing designs?

A: The RMC56MMST is functionally equivalent to the AMC56MMST across all critical electrical and mechanical parameters, including pitch, position count, contact finish, operating temperature range, and insulation material. Direct substitution is supported by identical flange configuration and solder termination method.

Q: What is the significance of the contact material difference between these connectors?

A: The AMC56MMST uses beryllium copper contacts while the RMC56MMST uses phosphor bronze contacts. Both materials, when finished with gold plating at 30.0µin (0.76µm), provide equivalent electrical performance within the specified operating parameters and temperature range.

Q: Does the RMC56MMST specify a card thickness while the AMC56MMST does not?

A: The RMC56MMST specifies 0.062" (1.57mm) card thickness. This specification defines the physical dimension of the edgecard the connector accommodates. Both connectors are designed to interface with female edgecards at 0.100" (2.54mm) pitch with dual read-out configuration.

Q: Are there any differences in mounting configuration between these connectors?

A: Both connectors feature flush mount configuration with top opening and threaded insert (4-40). The RMC56MMST specifies through-hole mounting type, while the AMC56MMST does not specify mounting type. Both maintain identical flange feature specifications.

Q: What is the inventory status for these connectors?

A: The AMC56MMST has 1024 pieces in stock as new original inventory. The RMC56MMST has 813 pieces in stock as new original inventory. The RMC56MMST active product status ensures ongoing availability for future procurement.

Q: Are both connectors compliant with current environmental regulations?

A: Both the AMC56MMST and RMC56MMST are ROHS3 compliant and REACH unaffected. Both maintain moisture sensitivity level 1 (unlimited), indicating no special moisture handling requirements during storage or assembly.