SFMC-120-02-SM-D Equivalent & Substitute Parts

Part Overview

The SFMC-120-02-SM-D is a 40-position receptacle connector from Samtec Inc.'s Tiger Eye™ SFMC series, designed for board-to-board or cable applications. This surface mount connector features 0.050" (1.27mm) pitch mating with gold-plated female socket contacts rated at 2.9A per contact. The part is Active status and ROHS3 compliant, making it suitable for modern electronic assemblies requiring high-density interconnection in compact form factors. Equivalent and substitute parts are identified based on matching electrical and mechanical parameters within the same product family.

Substiute Parts

SFMC-120-02-SM-D

Samtec Inc.In Stock: 949SFMC-120-02-SM-D Datasheet

Current PartRFQ

SFMC-120-02-S-D

Samtec Inc.In Stock: 1101SFMC-120-02-S-D Datasheet

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SFMC-120-L2-S-D

Samtec Inc.In Stock: 1144SFMC-120-L2-S-D Datasheet

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SFMC-120-L2-S-D-P

Samtec Inc.In Stock: 1095SFMC-120-L2-S-D-P Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SFMC-120-02-SM-D are identified within the Tiger Eye™ SFMC series based on the following critical parameters that must remain constant:

• Connector Type: Receptacle
• Number of Positions: 40
• Pitch - Mating: 0.050" (1.27mm)
• Number of Rows: 2
• Row Spacing - Mating: 0.050" (1.27mm)
• Mounting Type: Surface Mount
• Contact Type: Female Socket
• Contact Finish - Mating: Gold
• Current Rating: 2.9A per Contact
• Operating Temperature: -55°C ~ 125°C
• Material Flammability Rating: UL94 V-0
• Insulation Material: Liquid Crystal Polymer (LCP)
• Contact Material: Beryllium Copper
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Variations in part numbering within this group reflect differences in termination style, contact post finish, or assembly features that do not affect core electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All four parts—SFMC-120-02-SM-D, SFMC-120-02-S-D, SFMC-120-L2-S-D, and SFMC-120-L2-S-D-P—are Active status products from Samtec Inc. and maintain identical electrical and mechanical specifications. Each part is ROHS3 compliant and carries UL94 V-0 flammability certification, meeting modern regulatory requirements for industrial and commercial applications.

The primary distinction among these parts lies in assembly features. The SFMC-120-L2-S-D-P variant includes Pick and Place capability, which may be relevant for automated assembly environments. Selection between these parts should be based on specific assembly process requirements and inventory availability rather than electrical or mechanical performance differences.

Frequently Asked Questions (FAQ)

Q: Can SFMC-120-02-S-D be used as a direct replacement for SFMC-120-02-SM-D?

A: Yes. Both parts share identical electrical and mechanical parameters, including 40 positions, 0.050" pitch, 2.9A per contact rating, and gold-plated mating surfaces. The difference in part numbering reflects variations in termination or contact post finish that do not affect functional compatibility.

Q: What is the significance of the "L2" designation in SFMC-120-L2-S-D and SFMC-120-L2-S-D-P?

A: The "L2" designation indicates a specific variant within the SFMC-120 base product family. All parameters remain equivalent to the SFMC-120-02-SM-D, with no impact on electrical performance or mechanical fit.

Q: Is the Pick and Place feature in SFMC-120-L2-S-D-P critical for component selection?

A: The Pick and Place feature is an assembly convenience attribute relevant only to manufacturing processes using automated placement equipment. It does not affect the connector's electrical characteristics, mating interface, or performance in the final application.

Q: Are all four parts suitable for the same operating temperature range?

A: Yes. All parts operate across -55°C to 125°C, with identical UL94 V-0 flammability ratings and Moisture Sensitivity Level 1 (Unlimited), ensuring equivalent performance across environmental conditions.

Q: What inventory considerations apply when selecting among these substitutes?

A: Current stock levels are SFMC-120-02-SM-D (930 pcs), SFMC-120-02-S-D (1018 pcs), SFMC-120-L2-S-D (1088 pcs), and SFMC-120-L2-S-D-P (1069 pcs). All variants are available in quantity, supporting flexible procurement strategies.