MD-50S Equivalent & Substitute Parts

Part Overview

The MD-50S is a 5-position circular connector receptacle manufactured by CUI Devices, featuring female sockets with solder termination and Mini DIN shell size. This connector is designed for through-hole, right-angle mounting applications with push-pull fastening and keyed orientation. The product is currently obsolete, making identification of equivalent substitute parts essential for ongoing system maintenance, repair, and component sourcing.

Substiute Parts

MD-50S

CUI DevicesIn Stock: 1040MD-50S Datasheet

Current PartRFQ

2MJ-0003A110

Singatron Enterprises Co LtdIn Stock: 11252MJ-0003A110 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MD-50S is based on strict equivalence of the following critical parameters:

• Connector type and gender (Receptacle, Female Sockets)
• Position count (5 positions)
• Shell size classification (Mini DIN)
• Mounting configuration (Through Hole, Right Angle)
• Termination method (Solder)
• Fastening mechanism (Push-Pull)
• Keyed orientation compatibility
• Shell material (PBT)
• Operating temperature range (-40°C ~ 85°C)
• Regulatory compliance (RoHS Compliant, EAR99 classification)

The substitute part 2MJ-0003A110 from Singatron Enterprises Co Ltd meets all critical mechanical and electrical interface requirements for direct substitution in applications previously using the MD-50S.

Parameter Comparison

Engineering Selection Recommendations

The 2MJ-0003A110 is a direct functional equivalent to the MD-50S based on matching mechanical interface specifications, electrical ratings, and regulatory compliance. Both connectors share identical shell size, position count, mounting configuration, and operating temperature specifications. Both are RoHS compliant and classified under the same ECCN and HTSUS codes, confirming regulatory equivalence.

Selection between these parts should be based on availability and packaging requirements. The MD-50S is supplied in tray packaging with 946 units in stock, while the 2MJ-0003A110 is supplied in bulk packaging with 1044 units available. The 2MJ-0003A110 is noted as discontinued at DiGi Electronics, requiring verification of current availability through alternative distribution channels.

Frequently Asked Questions (FAQ)

Q: Can the 2MJ-0003A110 be used as a direct replacement for the MD-50S in existing designs?

A: Yes. Both connectors meet identical specifications for connector type, position count, shell size, mounting configuration, termination method, and operating temperature range. The keyed orientation and push-pull fastening are identical, ensuring mechanical and electrical compatibility.

Q: Are there differences in contact materials or finishes between these parts?

A: The MD-50S specifies phosphor bronze contacts with silver mating finish. The 2MJ-0003A110 contact material and finish specifications are not provided in available documentation. Contact material compatibility should be confirmed with the supplier before final selection.

Q: What is the significance of the different packaging formats?

A: The MD-50S is supplied in tray packaging while the 2MJ-0003A110 is supplied in bulk packaging. This affects handling, storage, and inventory management but does not impact functional performance or electrical characteristics.

Q: Are both parts RoHS compliant?

A: The MD-50S is explicitly RoHS compliant. The 2MJ-0003A110 REACH status is listed as vendor undefined. RoHS compliance status for the 2MJ-0003A110 should be confirmed with the manufacturer before use in applications requiring regulatory compliance documentation.

Q: What is the current availability status of these parts?

A: The MD-50S is obsolete. The 2MJ-0003A110 is discontinued at DiGi Electronics. Current availability of either part requires direct contact with authorized distributors or manufacturers.