SMM-125-02-L-D-TR Equivalent & Substitute Parts

Part Overview

The SMM-125-02-L-D-TR is a 50-position receptacle connector from Samtec Inc.'s Tiger Eye™ SMM series, designed for surface mount board-to-board or cable applications. This connector features a 0.079" (2.00mm) pitch with gold-plated mating contacts and is rated for 3.2A per contact at 350VAC. The part maintains active product status with full RoHS3 compliance and UL94 V-0 flammability rating. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and access to alternative inventory levels when the primary part number becomes unavailable.

Substiute Parts

SMM-125-02-L-D-TR

Samtec Inc.In Stock: 796SMM-125-02-L-D-TR Datasheet

Current PartRFQ

SMM-125-02-L-D-K-TR

Samtec Inc.In Stock: 1684SMM-125-02-L-D-K-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The SMM-125-02-L-D-TR has one identified equivalent substitute within the Tiger Eye™ SMM series: SMM-125-02-L-D-K-TR. Substitution eligibility is determined by strict equivalence across the following critical parameters:

• Connector type (Receptacle)
• Number of positions (50)
• Pitch specification (0.079" / 2.00mm)
• Number of rows (2)
• Row spacing (0.079" / 2.00mm)
• Mounting type (Surface Mount)
• Contact finish - mating (Gold)
• Current rating (3.2A per Contact)
• Voltage rating (350VAC)
• Operating temperature range (-55°C ~ 125°C)
• Material flammability rating (UL94 V-0)
• RoHS compliance (ROHS3)
• Insulation material (Liquid Crystal Polymer)
• Contact material (Beryllium Copper)

The substitute part maintains identical electrical and mechanical specifications, ensuring direct functional interchangeability in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

Both the SMM-125-02-L-D-TR and SMM-125-02-L-D-K-TR maintain active product status with identical electrical performance, mechanical specifications, and regulatory compliance. Selection between these parts is based on inventory availability and packaging requirements. The SMM-125-02-L-D-K-TR includes Pick and Place feature designation, which may provide additional handling advantages in automated assembly environments. Both parts carry ROHS3 compliance, UL94 V-0 flammability certification, and MSL 1 moisture sensitivity rating, ensuring equivalent reliability and regulatory acceptance across applications.

Frequently Asked Questions (FAQ)

Q: Are SMM-125-02-L-D-TR and SMM-125-02-L-D-K-TR directly interchangeable?

A: Yes. Both parts are functionally equivalent receptacle connectors with identical pin counts (50), pitch (0.079" / 2.00mm), electrical ratings (3.2A per contact, 350VAC), operating temperature range (-55°C ~ 125°C), and contact materials. They share the same base product number (SMM-125) and series designation (Tiger Eye™ SMM).

Q: What is the difference between these two part numbers?

A: The primary difference is the Pick and Place feature designation in the SMM-125-02-L-D-K-TR variant, which indicates enhanced compatibility with automated pick-and-place assembly equipment. All other electrical, mechanical, and compliance parameters are identical.

Q: Can I use SMM-125-02-L-D-K-TR as a drop-in replacement for SMM-125-02-L-D-TR?

A: Yes. The parts are mechanically and electrically equivalent with identical footprints, mating interfaces, and performance specifications. No circuit design modifications are required.

Q: Are both parts RoHS compliant?

A: Yes. Both SMM-125-02-L-D-TR and SMM-125-02-L-D-K-TR are ROHS3 compliant and suitable for applications requiring RoHS certification.

Q: What is the moisture sensitivity level for these connectors?

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling.

Q: Are these parts suitable for high-temperature applications?

A: Yes. Both connectors are rated for operating temperatures from -55°C to 125°C, supporting a wide range of industrial and commercial applications.

Q: What packaging format is available?

A: Both parts are supplied in Tape & Reel (TR) packaging, standard for surface mount component distribution and automated assembly processes.