SFMC-107-02-S-D Equivalent & Substitute Parts

Part Overview

The SFMC-107-02-S-D is a 14-position receptacle connector manufactured by Samtec Inc. from the Tiger Eye™ SFMC series. This surface mount connector features 0.050" (1.27mm) pitch mating with gold-plated contacts and is designed for board-to-board or cable applications. The part is currently active in production with 887 units in stock. Alternative equivalent parts may be required due to supply constraints, design revisions, or specific application requirements that align with substitute part specifications.

Substiute Parts

SFMC-107-02-S-D

Samtec Inc.In Stock: 919SFMC-107-02-S-D Datasheet

Current PartRFQ

M50-3100745

Harwin Inc.In Stock: 1740M50-3100745 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SFMC-107-02-S-D is determined by strict alignment of the following critical parameters:

• Connector type (Receptacle) and contact type (Female Socket)
• Position count (14 positions) and row configuration (2 rows)
• Mating pitch (0.050" / 1.27mm) and row spacing (0.050" / 1.27mm)
• Mounting technology (Surface Mount) and termination method (Solder)
• Fastening mechanism (Push-Pull)
• Contact finish at mating surface (Gold)
• Insulation material (Liquid Crystal Polymer)
• Contact geometry (Square shape)
• Compliance certifications (UL94 V-0, ROHS3, REACH Unaffected)

The Harwin M50-3100745 meets all these critical substitution criteria and is classified as a direct equivalent part.

Parameter Comparison

Engineering Selection Recommendations

Both the SFMC-107-02-S-D and M50-3100745 are active production parts with ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on the following factors:

The SFMC-107-02-S-D offers an extended operating temperature range (-55°C to 125°C) compared to the M50-3100745 (-40°C to 105°C). Applications requiring operation at temperatures below -40°C or above 105°C must use the Samtec part.

The M50-3100745 provides higher current rating (1A per contact) relative to the SFMC-107-02-S-D (2.9A per contact). For applications with lower current requirements, the Harwin part is suitable. The Samtec part is required for applications demanding the full 2.9A per contact rating.

Both parts feature identical mating pitch, row configuration, position count, and push-pull fastening. Mechanical compatibility is established for board-to-board and cable applications. The insulation height difference (0.185" versus 0.181") is within typical manufacturing tolerance ranges and does not affect functional interchangeability.

Contact material differs between parts: Beryllium Copper (Samtec) versus Phosphor Bronze (Harwin). Both materials are suitable for gold-plated mating surfaces and provide equivalent electrical performance in standard applications.

Frequently Asked Questions (FAQ)

Q: Can the M50-3100745 be used as a direct replacement for the SFMC-107-02-S-D in all applications?

A: The M50-3100745 is mechanically and electrically compatible with the SFMC-107-02-S-D for applications operating within -40°C to 105°C and requiring up to 1A per contact. Applications requiring operation below -40°C, above 105°C, or exceeding 1A per contact must use the SFMC-107-02-S-D.

Q: What are the key dimensional differences between these connectors?

A: The primary dimensional difference is insulation height: SFMC-107-02-S-D measures 0.185" (4.70mm) while M50-3100745 measures 0.181" (4.60mm). This 0.004" (0.10mm) difference is within standard manufacturing tolerances and does not affect board layout or mating compatibility.

Q: Are both parts suitable for medical and telecommunications applications?

A: Both parts meet UL94 V-0 flammability requirements and ROHS3 compliance. The M50-3100745 is specifically listed for medical and telecommunications applications. Application suitability should be confirmed against specific design requirements and regulatory standards for the intended end use.

Q: What is the difference between the contact finish specifications?

A: The SFMC-107-02-S-D specifies 30.0µin (0.76µm) gold plating thickness, while the M50-3100745 specifies flash gold plating. Both provide adequate corrosion resistance and electrical conductivity for standard mating cycles. Flash plating is a thinner application suitable for lower cycle count applications.

Q: Can these connectors be used interchangeably in existing PCB designs?

A: Yes, for applications within the operating parameters of both parts. The identical 0.050" (1.27mm) pitch, 2-row configuration, 14-position count, and surface mount termination ensure mechanical and electrical compatibility. PCB footprints designed for either part will accommodate the other without modification.