AMC38MMSD Card Edge Connector Equivalent & Substitute Parts

Part Overview

The AMC38MMSD is a 76-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 the temperature range of -65°C to 200°C.

The AMC38MMSD is classified as obsolete. Locating equivalent or substitute components is necessary to support ongoing maintenance, repair, and legacy system requirements where this connector type remains in service.

Substiute Parts

AMC38MMSD

Sullins Connector SolutionsIn Stock: 1075AMC38MMSD Datasheet

Current PartRFQ

RMC38MMSD

Sullins Connector SolutionsIn Stock: 765RMC38MMSD Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AMC38MMSD is determined by the following critical parameters that must remain consistent:

Mandatory Matching Parameters:

• Connector type: Card edge, male configuration
• Number of positions: 76 total (38 per row, 2 rows)
• Pitch: 0.100" (2.54mm)
• Read out: Dual
• Termination method: Solder
• Contact finish: Gold plating at 30.0µin (0.76µm)
• Operating temperature range: -65°C to 200°C
• Insulation material: Polyphenylene Sulfide (PPS)
• Compliance: ROHS3 Compliant

Parameters Permitting Variation:

• Contact material (beryllium copper vs. phosphor bronze)
• Flange opening orientation (side opening vs. top opening)
• Card thickness specification
• Mounting type classification
• Connector color
• Product status (obsolete vs. active)

The RMC38MMSD qualifies as a substitute part because it maintains all mandatory parameters while offering an active product status with improved availability.

Parameter Comparison

Engineering Selection Recommendations

The RMC38MMSD serves as the active equivalent to the obsolete AMC38MMSD. Both connectors maintain identical electrical and mechanical specifications for the critical parameters governing card edge connector interchangeability: 76-position configuration, 0.100" pitch, dual read-out, gold contact finish, solder termination, and operating temperature range.

The RMC38MMSD offers the advantage of active product status with documented inventory availability (754 pieces in stock), whereas the AMC38MMSD is obsolete. Both parts carry ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements.

The contact material differs between the two parts (beryllium copper versus phosphor bronze), and the flange opening orientation varies (side opening versus top opening). These differences do not affect functional compatibility with standard female edgecard receptacles at 0.100" pitch. The RMC38MMSD specifies a defined card thickness of 0.062" (1.57mm), whereas the AMC38MMSD does not specify this parameter.

Selection between these parts should be based on application requirements regarding flange orientation, mounting configuration, and card thickness compatibility with the target female edgecard interface.

Frequently Asked Questions (FAQ)

Q: Can the RMC38MMSD directly replace the AMC38MMSD in existing applications?

A: The RMC38MMSD maintains all critical electrical and mechanical parameters required for card edge connector interchangeability at 0.100" pitch with 76 positions in dual read-out configuration. Physical differences in flange opening orientation and contact material do not affect functional compatibility with standard female edgecards. Mechanical fit and mounting orientation must be evaluated for the specific application.

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

A: Both beryllium copper and phosphor bronze are established contact materials for card edge connectors. The contact finish (gold plating at 30.0µin thickness) is identical on both parts, which governs the electrical interface characteristics. The base material difference does not affect compatibility with female edgecard receptacles.

Q: Does the flange opening orientation (side opening vs. top opening) affect compatibility?

A: The flange opening orientation determines the mechanical approach direction for card insertion. Side opening and top opening flanges accommodate different mounting and insertion geometries. Selection must align with the physical layout and card insertion direction of the target application.

Q: What card thickness does the AMC38MMSD support?

A: The AMC38MMSD does not specify a card thickness parameter in the provided documentation. The RMC38MMSD specifies 0.062" (1.57mm) card thickness. Standard 0.100" pitch card edge connectors typically accommodate cards in the 0.062" to 0.093" thickness range. Application-specific card thickness requirements must be confirmed.

Q: Are both parts compliant with current regulatory standards?

A: Both the AMC38MMSD and RMC38MMSD are ROHS3 compliant and REACH unaffected. Both carry Moisture Sensitivity Level 1 (unlimited), indicating no special moisture handling requirements during storage or assembly.

Q: Why is the AMC38MMSD classified as obsolete?

A: The AMC38MMSD is listed as obsolete by the manufacturer. The RMC38MMSD represents the active product line continuation for this connector type. Obsolete status indicates the part is no longer in active production, though existing inventory may remain available.