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

Part Overview

The SFM-125-02-L-D-TR is a 50-position receptacle connector from Samtec Inc.'s Tiger Eye™ SFM series, designed for surface mount board-to-board or cable applications. This connector features 0.050" (1.27mm) pitch mating with gold-plated contacts rated for 3.2A per contact at 250VAC. The part maintains Active product status with full RoHS3 compliance and MSL 1 rating, making it suitable for high-reliability applications across industrial and commercial environments. 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

SFM-125-02-L-D-TR

Samtec Inc.In Stock: 873SFM-125-02-L-D-TR Datasheet

Current PartRFQ

SFM-125-02-L-D-K-TR

Samtec Inc.In Stock: 2433SFM-125-02-L-D-K-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SFM-125-02-L-D-TR is determined by strict equivalence across the following critical parameters:

• Connector type (Receptacle)
• Contact type (Female Socket)
• Number of positions (50)
• Pitch specification (0.050" / 1.27mm mating pitch)
• Row configuration (2 rows at 0.050" spacing)
• Mounting method (Surface Mount)
• Termination type (Solder)
• Fastening mechanism (Push-Pull)
• Contact finish material (Gold plating)
• Electrical ratings (3.2A per contact, 250VAC)
• Operating temperature range (-55°C ~ 125°C)
• Insulation material (Liquid Crystal Polymer)
• Contact material (Beryllium Copper)
• Compliance certifications (RoHS3, UL94 V-0)

The substitute part SFM-125-02-L-D-K-TR meets all these criteria, differing only in fastening hardware configuration (K-type versus D-type) while maintaining identical electrical, mechanical, and environmental specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the SFM-125-02-L-D-TR and SFM-125-02-L-D-K-TR maintain Active product status with identical compliance certifications including RoHS3 and UL94 V-0 flammability ratings. The parts are electrically and mechanically equivalent across all specified parameters. Selection between these parts should be based on inventory availability and fastening hardware requirements specific to the application. The SFM-125-02-L-D-K-TR currently maintains higher inventory levels (2391 pcs versus 774 pcs), providing improved supply chain accessibility. Both parts are packaged in Tape & Reel format suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Are SFM-125-02-L-D-TR and SFM-125-02-L-D-K-TR fully interchangeable?

A: Yes. Both connectors are electrically and mechanically equivalent across all critical parameters including contact count, pitch, current rating, voltage rating, operating temperature, and material specifications. The difference in part number designation reflects fastening hardware configuration only.

Q: What is the significance of the "D" versus "K" designation in the part number?

A: The fourth position in the Samtec part number scheme designates the fastening hardware type. Both D-type and K-type variants maintain identical electrical performance and mechanical compatibility within the Tiger Eye™ SFM series.

Q: Can these connectors be used in applications requiring -55°C to 125°C operation?

A: Yes. Both parts are rated for the full -55°C to 125°C operating temperature range with UL94 V-0 material flammability compliance.

Q: What is the current handling capacity per contact?

A: Both connectors are rated for 3.2A per contact at 250VAC maximum voltage.

Q: Are these parts RoHS compliant?

A: Yes. Both SFM-125-02-L-D-TR and SFM-125-02-L-D-K-TR are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What packaging format is used for these connectors?

A: Both parts are supplied in Tape & Reel (TR) packaging suitable for automated pick-and-place assembly operations.

Q: Do these connectors support surface mount assembly?

A: Yes. Both parts are designed for surface mount termination with solder attachment to PCB pads.