SMD3FRA111 Equivalent & Substitute Parts

Part Overview

The SMD3FRA111 is a 3-position circular connector receptacle with female sockets designed for solder termination. Manufactured by Switchcraft Inc., this Mini DIN connector features push-pull fastening, keyed orientation, and shielded construction suitable for communication systems, instrumentation, and medical applications. The part is currently obsolete, making equivalent substitutes necessary for ongoing system maintenance and new designs requiring compatible connectivity solutions.

Substiute Parts

SMD3FRA111

Switchcraft Inc.In Stock: 748SMD3FRA111 Datasheet

Current PartRFQ

MD-30SM

CUI DevicesIn Stock: 1941MD-30SM Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The MD-30SM from CUI Devices qualifies as a direct substitute for the SMD3FRA111 based on the following critical parameters:

• Connector Type & Configuration: Both are 3-position receptacles with female sockets
• Shell Size: Both use Mini DIN form factor
• Mounting & Termination: Both feature through-hole, right-angle mounting with solder termination
• Fastening & Orientation: Both employ push-pull fastening with keyed orientation
• Electrical Ratings: Both support 1A and 2A current ratings at 100VAC and 12VDC
• Shielding & Protection: Both are shielded with UL94 V-0 flammability rating
• Contact Material: Both feature silver contact finish for reliable mating

The MD-30SM maintains functional and mechanical compatibility while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The MD-30SM is the appropriate substitute for the SMD3FRA111 based on the following factors:

Product Status: The SMD3FRA111 is obsolete, limiting availability for future procurement. The MD-30SM maintains active production status, ensuring long-term supply chain reliability.

Regulatory Compliance: The MD-30SM is ROHS3 compliant, meeting current environmental and regulatory requirements. The SMD3FRA111 is RoHS non-compliant, which may present compliance challenges in new designs or regulated applications.

Electrical & Mechanical Compatibility: Both connectors share identical electrical ratings, mechanical form factors, and termination methods, enabling direct substitution without circuit redesign.

Operating Temperature: The MD-30SM specifies an operating temperature range of -40°C to 85°C, providing defined thermal performance parameters absent in the SMD3FRA111 specification.

Frequently Asked Questions (FAQ)

Q: Can the MD-30SM directly replace the SMD3FRA111 in existing designs?

A: Yes. Both connectors are 3-position Mini DIN receptacles with identical mounting, termination, fastening, and electrical specifications. The MD-30SM is mechanically and electrically compatible for direct substitution.

Q: What is the primary reason to substitute the SMD3FRA111?

A: The SMD3FRA111 is obsolete. The MD-30SM provides an active, in-production alternative with equivalent functionality and improved regulatory compliance.

Q: Are there packaging differences between these connectors?

A: The SMD3FRA111 packaging is not specified in available data. The MD-30SM is supplied in tray packaging. Confirm packaging requirements with your procurement process.

Q: Does the MD-30SM meet current RoHS requirements?

A: Yes. The MD-30SM is ROHS3 compliant, meeting current environmental directives. The SMD3FRA111 is RoHS non-compliant.

Q: Are the contact materials compatible?

A: Both connectors feature silver contact finish. The SMD3FRA111 uses copper alloy contacts, while the MD-30SM uses phosphor bronze contacts. Both materials provide reliable mating performance at the specified electrical ratings.

Q: What is the operating temperature range for these connectors?

A: The MD-30SM operates from -40°C to 85°C. The SMD3FRA111 operating temperature is not specified in available documentation.