3M 950520-5002-AR Equivalent & Substitute Parts

Part Overview

The 3M 950520-5002-AR is a 20-position rectangular receptacle connector with 0.079" (2.00mm) pitch, designed for through-hole, right-angle board-to-board applications. This connector features gold-plated mating contacts, tin-plated posts, and a push-pull fastening mechanism rated for 1A at 1000VDC. The product is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

950520-5002-AR

3MIn Stock: 1013950520-5002-AR Datasheet

Current PartRFQ

SQT-120-01-L-S-RA

Samtec Inc.In Stock: 897SQT-120-01-L-S-RA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The Samtec Inc. SQT-120-01-L-S-RA qualifies as a functional equivalent based on the following critical parameters:

Matching Parameters:

• Connector type: Receptacle
• Number of positions: 20
• Pitch - mating: 0.079" (2.00mm)
• Mounting type: Through hole, right angle
• Contact finish - mating: Gold
• Fastening type: Push-pull
• Termination: Solder
• Material flammability rating: UL94 V-0
• Moisture sensitivity level: 1 (Unlimited)

Substitution Basis: Both connectors share identical mechanical interfaces (20-position, 2.00mm pitch, right-angle through-hole mounting) and electrical fastening characteristics (push-pull mechanism, solder termination). The matching gold mating contact finish and UL94 V-0 flammability rating ensure compatibility in equivalent applications.

Parameter Comparison

Engineering Selection Recommendations

The Samtec SQT-120-01-L-S-RA is the designated equivalent for the obsolete 3M 950520-5002-AR. Selection of the Samtec part is supported by:

• Active product status ensuring long-term availability and supply chain continuity
• Identical mechanical and electrical interface specifications (20-position, 2.00mm pitch, right-angle through-hole, push-pull fastening)
• Matching gold mating contact finish and UL94 V-0 flammability certification
• Extended operating temperature range (-55°C ~ 125°C vs. -40°C ~ 105°C), providing broader environmental compatibility
• Higher current rating per contact (5.1A vs. 1A), offering increased electrical capacity for equivalent or upgraded applications
• ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements

Frequently Asked Questions (FAQ)

Q: Can the Samtec SQT-120-01-L-S-RA directly replace the 3M 950520-5002-AR in existing designs?

A: Yes. Both connectors share identical 20-position, 0.079" (2.00mm) pitch, right-angle through-hole mounting specifications and push-pull fastening mechanisms. Mechanical and electrical interfaces are compatible for direct substitution in equivalent applications.

Q: What are the key differences between these connectors?

A: The primary differences are product status (obsolete vs. active), operating temperature range (3M: -40°C ~ 105°C; Samtec: -55°C ~ 125°C), current rating per contact (3M: 1A; Samtec: 5.1A), and regulatory compliance (Samtec includes ROHS3 and REACH documentation). The Samtec part offers extended environmental and electrical performance.

Q: Are there packaging differences between the main part and substitute?

A: The 3M part packaging is not specified in available documentation. The Samtec SQT-120-01-L-S-RA is supplied in bulk packaging. Verify packaging requirements for your procurement process.

Q: Do both connectors use the same contact materials?

A: Contact materials differ. The 3M part uses copper alloy contacts with gold mating finish and tin post finish. The Samtec part uses phosphor bronze contacts with gold mating finish and tin post finish. Both achieve equivalent electrical performance with UL94 V-0 flammability certification.

Q: Is the Samtec part suitable for applications requiring the original 1A current rating?

A: Yes. The Samtec SQT-120-01-L-S-RA is rated for 5.1A per contact, which exceeds the original 1A requirement. It is fully compatible with applications designed for the 3M connector's electrical specifications.