SMD6FRA021 Equivalent & Substitute Parts

Part Overview

The SMD6FRA021 is a 6-position circular connector receptacle with female sockets designed for solder termination. Manufactured by Switchcraft Inc., this Mini DIN connector features through-hole, right-angle mounting with push-pull fastening and keyed orientation. The connector is actively produced and widely used in communication systems, instrumentation, and medical applications. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and access to alternative inventory sources when the primary part becomes unavailable or when project requirements necessitate component alternatives.

Substiute Parts

SMD6FRA021

Switchcraft Inc.In Stock: 1186SMD6FRA021 Datasheet

Current PartRFQ

5749180-1

TE Connectivity AMP ConnectorsIn Stock: 28975749180-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMD6FRA021 are identified based on strict equivalence of core electrical and mechanical parameters. The following criteria determine substitution eligibility:

Primary Matching Parameters:

• Connector type: Receptacle with female sockets
• Position count: 6 positions
• Shell size: Mini DIN
• Mounting configuration: Through hole, right angle
• Termination method: Solder
• Fastening mechanism: Push-pull
• Orientation: Keyed
• Shell material: Thermoplastic
• Contact finish: Gold plating on mating surfaces
• Shielding: Shielded construction

Electrical Compatibility Parameters:

• Current rating: Minimum 1A (SMD6FRA021 supports 1A and 2A)
• Voltage rating: Minimum 12VDC (SMD6FRA021 supports 12VDC and 100VAC)
• Flammability rating: UL94 V-0 compliance

Regulatory & Environmental Parameters:

• RoHS3 compliance
• MSL rating: 1 (Unlimited)

The substitute part 5749180-1 manufactured by TE Connectivity AMP Connectors meets all primary matching parameters and regulatory requirements, establishing it as a valid equivalent for the SMD6FRA021.

Parameter Comparison

Engineering Selection Recommendations

Both the SMD6FRA021 and 5749180-1 are actively produced components with ROHS3 compliance and UL94 V-0 flammability certification. The primary distinction between these parts lies in their electrical ratings:

The SMD6FRA021 supports current ratings of 1A and 2A with voltage ratings of 100VAC and 12VDC. The 5749180-1 supports a current rating of 1A with a voltage rating of 30VDC.

For applications requiring 2A current capacity or 100VAC operation, the SMD6FRA021 is the appropriate selection. For applications operating at 30VDC with 1A maximum current, the 5749180-1 provides equivalent functionality with identical mechanical and connector interface specifications.

Both parts maintain identical MSL ratings and regulatory compliance status, ensuring equivalent reliability in moisture-sensitive manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can the 5749180-1 be used as a direct replacement for the SMD6FRA021 in all applications?

A: The 5749180-1 is mechanically and electrically compatible with the SMD6FRA021 for applications operating at 1A current and 30VDC or lower voltage. Applications requiring 2A current capacity or 100VAC operation must use the SMD6FRA021, as the substitute part does not support these electrical specifications.

Q: What are the key mechanical compatibility factors between these connectors?

A: Both connectors share identical mechanical specifications: 6-position Mini DIN receptacle configuration, through-hole right-angle mounting, push-pull fastening with keyed orientation, thermoplastic shell construction, and shielded design. These factors ensure physical interchangeability in PCB layouts and mechanical assemblies.

Q: Are there packaging differences between the SMD6FRA021 and 5749180-1?

A: The SMD6FRA021 is supplied without specified packaging, while the 5749180-1 is packaged in tubes. This distinction affects inventory management and handling procedures but does not impact electrical or mechanical performance.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the SMD6FRA021 and 5749180-1 are ROHS3 compliant, UL94 V-0 rated, and carry MSL 1 (Unlimited) moisture sensitivity ratings. They are equivalent from a regulatory and environmental compliance perspective.

Q: What is the primary reason to consider the 5749180-1 as a substitute?

A: The 5749180-1 should be considered when the SMD6FRA021 is unavailable or when supply chain constraints necessitate alternative sourcing. With 2,840 pieces in stock compared to 1,146 pieces for the SMD6FRA021, the substitute part may offer improved availability for applications within its electrical rating specifications.