AMC14MMST Equivalent & Substitute Parts

Part Overview

The AMC14MMST is a 28-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

AMC14MMST

Sullins Connector SolutionsIn Stock: 1244AMC14MMST Datasheet

Current PartRFQ

RMC14MMST

Sullins Connector SolutionsIn Stock: 896RMC14MMST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete AMC14MMST with the active RMC14MMST is based on alignment of critical electrical and mechanical parameters that define functional compatibility:

Matching Parameters:

• 28-position connector configuration
• 0.100" (2.54mm) pitch spacing
• Male gender with dual read-out
• Solder termination method
• Gold contact finish at 30.0µin thickness
• Flush mount with top opening and 4-40 threaded insert
• Operating temperature range -65°C to 200°C
• Polyphenylene Sulfide insulation material
• ROHS3 compliance and MSL 1 rating

Differing Parameters:

• Contact material: Beryllium copper (AMC14MMST) versus phosphor bronze (RMC14MMST)
• Card thickness specification: Not specified (AMC14MMST) versus 0.062" (RMC14MMST)
• Mounting type: Not specified (AMC14MMST) versus through hole (RMC14MMST)
• Color: Not specified (AMC14MMST) versus black (RMC14MMST)
• Product status: Obsolete (AMC14MMST) versus active (RMC14MMST)

The RMC14MMST maintains all critical functional parameters while providing active product status and current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The RMC14MMST is the direct active equivalent for the obsolete AMC14MMST. Selection of the RMC14MMST is supported by the following factors:

Compliance and Certification: Both connectors maintain ROHS3 compliance and MSL 1 rating, ensuring regulatory alignment with current manufacturing standards.

Functional Equivalence: The RMC14MMST preserves all critical electrical and mechanical parameters including 28-position configuration, 0.100" pitch, dual read-out, solder termination, and gold contact finish at identical thickness specifications.

Thermal Performance: Operating temperature range remains -65°C to 200°C, maintaining compatibility with existing thermal design requirements.

Insulation and Mounting: Polyphenylene sulfide insulation material and flush mount configuration with 4-40 threaded insert remain unchanged, ensuring mechanical fit and assembly compatibility.

Active Product Status: The RMC14MMST is currently manufactured and supported, providing supply chain continuity and technical support availability.

Contact material substitution from beryllium copper to phosphor bronze does not affect functional performance within the specified electrical and thermal parameters. The specified card thickness of 0.062" for the RMC14MMST aligns with standard edgecard dimensions.

Frequently Asked Questions (FAQ)

Q: Can the RMC14MMST directly replace the AMC14MMST in existing applications?

A: Yes. The RMC14MMST maintains all critical functional parameters including position count, pitch, gender, read-out configuration, termination method, contact finish, operating temperature range, and mounting geometry. Both connectors interface with identical female edgecard specifications.

Q: What is the significance of the contact material difference between beryllium copper and phosphor bronze?

A: Both materials provide adequate electrical conductivity and mechanical durability for card edge connector applications. The contact finish (gold plating at 30.0µin thickness) is identical on both parts, providing equivalent contact resistance and corrosion protection.

Q: Does the RMC14MMST card thickness specification of 0.062" affect compatibility?

A: The 0.062" (1.57mm) card thickness specification for the RMC14MMST represents the standard edgecard thickness for this connector class. This specification ensures proper contact engagement and mechanical stability with female edgecards designed for 0.100" pitch connectors.

Q: Are there any compliance or regulatory differences between the two parts?

A: No. Both the AMC14MMST and RMC14MMST are ROHS3 compliant with MSL 1 rating. The RMC14MMST carries ECCN EAR99 classification and HTSUS code 8536.69.4040, reflecting its active product status.

Q: What is the through-hole mounting type specified for the RMC14MMST?

A: Through-hole mounting indicates that the solder termination pins pass through printed circuit board holes for mechanical and electrical connection. This is standard for card edge connectors in this configuration.

Q: Is the black color of the RMC14MMST a functional difference?

A: No. Color is a cosmetic specification that does not affect electrical or mechanical performance. The black insulation material is standard for active production variants of this connector series.