AMC22MMST Equivalent & Substitute Parts

Part Overview

The AMC22MMST is a 44-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 the temperature range of -65°C to 200°C. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

AMC22MMST

Sullins Connector SolutionsIn Stock: 671AMC22MMST Datasheet

Current PartRFQ

RMC22MMST

Sullins Connector SolutionsIn Stock: 1040RMC22MMST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete AMC22MMST with the active RMC22MMST is based on the following critical parameters that remain constant across both parts:

Electrical Compatibility Parameters:

• Number of positions: 44
• Gender: Male
• Pitch: 0.100" (2.54mm)
• Number of rows: 2
• Read out: Dual
• Contact finish: Gold at 30.0µin (0.76µm) thickness
• Termination method: Solder

Mechanical Compatibility Parameters:

• Flange feature: Flush Mount, Top Opening, Threaded Insert, 4-40
• Insulation material: Polyphenylene Sulfide (PPS)
• Operating temperature range: -65°C ~ 200°C

Regulatory Compliance Parameters:

• RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The RMC22MMST maintains functional equivalence through identical electrical and mechanical interfaces while offering active product status and current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The RMC22MMST is the direct active equivalent for the obsolete AMC22MMST. Both connectors maintain identical electrical and mechanical interface specifications, including 44-position configuration, 0.100" pitch, dual read-out, gold contact finish, and operating temperature range of -65°C to 200°C.

The RMC22MMST offers the following advantages for component selection:

Product Status: The RMC22MMST maintains active manufacturing status with current inventory availability (951 pieces in stock), ensuring supply chain continuity and long-term availability compared to the obsolete AMC22MMST.

Regulatory Compliance: Both parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), meeting current environmental and reliability standards.

Contact Material Difference: The RMC22MMST uses phosphor bronze contacts compared to beryllium copper in the AMC22MMST. Both materials are specified with identical gold plating thickness (30.0µin) and maintain the same operating temperature range, ensuring electrical performance equivalence.

Mechanical Interface: The RMC22MMST specifies through-hole mounting with 0.062" (1.57mm) card thickness compatibility, providing defined mechanical parameters for PCB integration.

Frequently Asked Questions (FAQ)

Q: Can the RMC22MMST directly replace the AMC22MMST in existing designs?

A: Yes. The RMC22MMST maintains identical electrical and mechanical interface specifications. Both connectors feature 44 positions, 0.100" pitch, dual read-out configuration, gold contact finish, and identical flange geometry with 4-40 threaded inserts. The operating temperature range and insulation material are identical across both parts.

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

A: The AMC22MMST uses beryllium copper contacts while the RMC22MMST uses phosphor bronze contacts. Both materials are specified with identical gold plating thickness (30.0µin) and maintain the same operating temperature range (-65°C to 200°C). The contact finish thickness is the critical parameter for electrical performance, which is identical between both parts.

Q: Are there any compatibility issues with card thickness?

A: The RMC22MMST specifies 0.062" (1.57mm) card thickness. The AMC22MMST does not specify card thickness in the provided parameters. Verify that your edgecard thickness matches the 0.062" specification for the RMC22MMST.

Q: Do both connectors meet current regulatory requirements?

A: Yes. Both the AMC22MMST and RMC22MMST are ROHS3 compliant with moisture sensitivity level 1 (unlimited). The RMC22MMST carries ECCN EAR99 classification and HTSUS code 8536.69.4040.

Q: What is the difference in mounting type between the two connectors?

A: The RMC22MMST specifies through-hole mounting. The AMC22MMST does not specify mounting type in the provided parameters. Through-hole mounting indicates PCB integration via drilled holes with solder termination.

Q: Is the black color of the RMC22MMST a functional difference?

A: No. Color is a cosmetic parameter and does not affect electrical or mechanical function. The RMC22MMST is specified in black while the AMC22MMST color is not specified.

Q: What inventory status should I consider for procurement?

A: The RMC22MMST has 951 pieces in stock as new original inventory. The AMC22MMST has 637 pieces in stock but is classified as obsolete. For new designs and ongoing production, the RMC22MMST is the appropriate selection due to active product status.