SFC-125-T2-L-D Equivalent & Substitute Parts

Part Overview

The SFC-125-T2-L-D is a 50-position receptacle connector from Samtec Inc.'s Tiger Eye™ SFC series, designed for surface mount board-to-board or cable applications. This connector features 0.050" (1.27mm) pitch mating with gold-plated female socket contacts rated for 3.1A per contact at 350VAC. The part is Active status and ROHS3 compliant, making it suitable for industrial and commercial applications requiring reliable high-density interconnection.

Identifying equivalent and substitute parts is necessary when managing inventory constraints, ensuring supply chain continuity, or selecting components with identical electrical and mechanical performance characteristics for design flexibility.

Substiute Parts

SFC-125-T2-L-D

Samtec Inc.In Stock: 778SFC-125-T2-L-D Datasheet

Current PartRFQ

SFC-125-T2-L-D-A

Samtec Inc.In Stock: 1052SFC-125-T2-L-D-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SFC-125-T2-L-D is determined by strict equivalence across the following critical parameters:

• Connector type (Receptacle)
• Contact type (Female Socket)
• Number of positions (50)
• Pitch and row spacing (0.050" / 1.27mm)
• Mounting type (Surface Mount)
• Termination method (Solder)
• Fastening mechanism (Push-Pull)
• Contact finish (Gold)
• Electrical ratings (3.1A per contact, 350VAC)
• Operating temperature range (-55°C ~ 125°C)
• Insulation material (LCP)
• Compliance certifications (ROHS3)

The substitute part SFC-125-T2-L-D-A meets all these criteria with identical electrical and mechanical specifications. The only documented difference is the addition of a Board Guide feature in the substitute variant, which does not affect core substitution compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both SFC-125-T2-L-D and SFC-125-T2-L-D-A are Active status components from Samtec Inc. and maintain identical ROHS3 compliance and EAR99 export classification. The electrical performance, thermal operating range, and mechanical interface specifications are equivalent across both part numbers.

The SFC-125-T2-L-D-A includes a Board Guide feature not present in the SFC-125-T2-L-D. This feature provides additional mechanical alignment during assembly but does not alter the core connector functionality or electrical characteristics. Selection between these parts should be based on PCB design requirements and assembly process specifications.

Both parts carry Moisture Sensitivity Level 1 (Unlimited) classification, indicating no special moisture handling requirements during storage or assembly.

Frequently Asked Questions (FAQ)

Q: Can SFC-125-T2-L-D-A be used as a direct replacement for SFC-125-T2-L-D?

A: Yes. Both connectors share identical electrical ratings (3.1A per contact, 350VAC), mechanical pitch (0.050" / 1.27mm), contact configuration (50-position, 2-row), and termination method (solder). The Board Guide feature in the SFC-125-T2-L-D-A does not prevent direct substitution.

Q: What is the significance of the Board Guide feature in SFC-125-T2-L-D-A?

A: The Board Guide provides mechanical alignment assistance during PCB assembly. It does not affect electrical performance or mating compatibility with corresponding plug connectors.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, carry EAR99 export classification, and share identical HTSUS codes (8536.69.4040). Moisture Sensitivity Level is 1 (Unlimited) for both.

Q: What is the current rating per contact for these connectors?

A: Both connectors are rated for 3.1A per contact at 350VAC maximum voltage.

Q: What is the operating temperature range?

A: Both connectors operate across -55°C to 125°C.

Q: What contact material and finish are used?

A: Both connectors use phosphor bronze contacts with 10.0µin (0.25µm) gold plating on the mating surface and tin plating on the post termination.