MS2A-T Mini Shunt 2.0mm 2-Position Connector - Equivalent & Substitute Parts

Part Overview

The MS2A-T is a 2-position mini shunt connector manufactured by Adam Tech, featuring a 2.0mm pitch, open top design, and tin contact finish. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications. The MS2A-T serves as a jumper connector for low-voltage signal routing and configuration in electronic assemblies, with a current rating of 1A and voltage rating of 250VAC.

Substiute Parts

MS2A-T

Adam TechIn Stock: 721MS2A-T Datasheet

Current PartRFQ

MS2A-G

Adam TechIn Stock: 12956MS2A-G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MS2A-T is determined by strict equivalence across the following critical parameters:

• Connector Series & Pitch: Both parts belong to the MS series with identical 2.0mm pitch spacing, ensuring mechanical compatibility with mating connectors and PCB layouts
• Position Configuration: Identical 2-position (1 x 2) arrangement maintains pin-to-pin correspondence
• Electrical Ratings: Matching 250VAC voltage rating and 1A current rating ensure functional equivalence in circuit applications
• Physical Dimensions: Identical height (4.50mm) and open top design confirm form factor compatibility
• Housing Material & Flammability: Both use PBT glass-filled material with UL94 V-0 rating, maintaining safety and thermal characteristics
• Contact Finish Variation: The substitute part MS2A-G uses gold plating instead of tin, which is an acceptable material upgrade that improves contact reliability and corrosion resistance while maintaining electrical performance

The MS2A-G represents a direct functional substitute with enhanced contact durability through gold plating, while maintaining all critical mechanical and electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

The MS2A-G is the recommended substitute for the obsolete MS2A-T. Both parts maintain identical electrical and mechanical specifications, with the primary difference being the contact finish material. The MS2A-G offers the advantage of active product status, ensuring continued availability and supply chain reliability. The gold flash plating on the MS2A-G provides superior contact resistance and corrosion protection compared to tin plating, making it a technically superior choice for long-term reliability. Both parts maintain ROHS3 compliance and identical safety certifications, confirming suitability for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can MS2A-G directly replace MS2A-T in existing designs? A: Yes. The MS2A-G is mechanically and electrically equivalent to the MS2A-T. Both share identical pitch (2.0mm), position configuration (2-position), electrical ratings (250VAC, 1A), and physical dimensions (4.50mm height). The gold contact finish of the MS2A-G is compatible with standard tin-plated mating connectors.

Q: What is the difference between tin and gold contact finishes? A: Tin plating provides basic corrosion resistance, while gold flash plating offers enhanced contact reliability, lower contact resistance, and superior protection against oxidation and corrosion. Both finishes are suitable for the specified 1A current rating and 250VAC voltage rating.

Q: Are there any compliance or certification differences? A: No. Both the MS2A-T and MS2A-G maintain identical ROHS3 compliance, UL94 V-0 flammability rating, and MSL Level 1 moisture sensitivity rating. Both are suitable for applications requiring these certifications.

Q: Why is the MS2A-T listed as obsolete? A: The MS2A-T has been discontinued by the manufacturer. The MS2A-G remains in active production and is the current standard offering for this connector type within the MS series.

Q: Are packaging differences relevant to substitution? A: Packaging format (bulk vs. other configurations) does not affect electrical or mechanical compatibility. The MS2A-G is available in bulk packaging, suitable for production environments.