SFM-120-L2-S-D Equivalent & Substitute Parts

Part Overview

The SFM-120-L2-S-D is a 40-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 contacts with gold plating, rated for 3.2A per contact at 250VAC, and operates across -55°C to 125°C. The part is Active status and ROHS3 compliant with MSL 1 (Unlimited). Equivalent and substitute parts are identified based on matching core electrical and mechanical parameters while accommodating design variations in fastening features and board engagement mechanisms.

Substiute Parts

SFM-120-L2-S-D

Samtec Inc.In Stock: 1012SFM-120-L2-S-D Datasheet

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SFM-120-02-S-D

Samtec Inc.In Stock: 1036SFM-120-02-S-D Datasheet

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SFM-120-02-S-D-A

Samtec Inc.In Stock: 760SFM-120-02-S-D-A Datasheet

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SFM-120-02-S-D-LC

Samtec Inc.In Stock: 842SFM-120-02-S-D-LC Datasheet

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SFM-120-02-SM-D-LC

Samtec Inc.In Stock: 943SFM-120-02-SM-D-LC Datasheet

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SFM-120-L2-S-D-A

Samtec Inc.In Stock: 1077SFM-120-L2-S-D-A Datasheet

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SFM-120-L2-S-D-LC

Samtec Inc.In Stock: 1011SFM-120-L2-S-D-LC Datasheet

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SFM-120-T2-S-D-A

Samtec Inc.In Stock: 1263SFM-120-T2-S-D-A Datasheet

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SFM-120-T2-S-D-LC

Samtec Inc.In Stock: 1023SFM-120-T2-S-D-LC Datasheet

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SFM-120-02-S-D-A-P

Samtec Inc.In Stock: 718SFM-120-02-S-D-A-P Datasheet

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SFM-120-02-S-D-LC-P

Samtec Inc.In Stock: 915SFM-120-02-S-D-LC-P Datasheet

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SFM-120-02-S-D-P

Samtec Inc.In Stock: 1033SFM-120-02-S-D-P Datasheet

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SFM-120-02-STL-D-A

Samtec Inc.In Stock: 1034SFM-120-02-STL-D-A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SFM-120-L2-S-D are qualified based on the following criteria:

Core Electrical & Mechanical Compatibility:

• 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 Finish - Mating: Gold (30.0µin / 0.76µm)
• Current Rating: 3.2A per Contact
• Voltage Rating: 250VAC
• Operating Temperature: -55°C ~ 125°C
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Design Variation Parameters (Allow Substitution):

• Fastening Type designation (L2, 02, T2 variants)
• Board engagement features (Board Guide, Board Lock, or standard)
• Pick and Place accommodation (P suffix)

All substitute parts maintain identical electrical performance, thermal ratings, contact geometry, and compliance certifications. Variations in part number suffixes reflect mechanical engagement options and assembly process accommodations that do not affect electrical or thermal functionality.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and thermal equivalence to the SFM-120-L2-S-D. Selection among substitutes is determined by mechanical engagement requirements and assembly process specifications:

Standard Configuration (No Board Engagement Feature): SFM-120-02-S-D provides baseline functionality without board guide or board lock features.

Board Guide Configuration: SFM-120-02-S-D-A, SFM-120-L2-S-D-A, and SFM-120-T2-S-D-A include board guide features for alignment during assembly.

Board Lock Configuration: SFM-120-02-S-D-LC, SFM-120-02-SM-D-LC, SFM-120-L2-S-D-LC, and SFM-120-T2-S-D-LC include board lock features for mechanical retention.

Pick and Place Accommodation: SFM-120-02-S-D-A-P and SFM-120-02-S-D-LC-P include pick and place features for automated assembly processes.

All parts are Active status and ROHS3 compliant. Inventory availability ranges from 611 to 1252 pieces across variants. Selection should be based on specific board engagement and assembly automation requirements rather than electrical performance, as all variants are electrically and thermally identical.

Frequently Asked Questions (FAQ)

Q: Can I substitute SFM-120-02-S-D for SFM-120-L2-S-D in my design? A: Yes. Both parts are electrically and thermally equivalent 40-position receptacle connectors with identical pitch, contact ratings, and operating specifications. The difference lies in fastening mechanism designation (L2 vs. 02), which does not affect electrical performance.

Q: What is the difference between Board Guide and Board Lock variants? A: Board Guide (suffix -A) provides alignment assistance during mating. Board Lock (suffix -LC) provides mechanical retention after mating. Both are mechanical features that do not affect electrical or thermal ratings. Selection depends on your application's mechanical engagement requirements.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the original SFM-120-L2-S-D specifications.

Q: What does the -P suffix indicate? A: The -P suffix indicates Pick and Place accommodation, designed for automated assembly processes. Electrically and thermally, these parts are identical to non-P variants.

Q: Can I mix different variants in the same assembly? A: Yes, provided your PCB layout and assembly process accommodate the specific mechanical features of each variant. All variants maintain identical electrical and thermal performance and mating geometry.

Q: What is the mated stacking height range? A: All variants support mated stacking heights of 6.15mm, 6.30mm, 7.92mm, 8.08mm, 9.70mm, 9.86mm, 11.61mm, and 11.76mm, depending on mating connector configuration.

Q: Are there any compliance or certification differences between variants? A: No. All variants share identical compliance certifications: ROHS3, UL94 V-0 flammability rating, and EAR99 ECCN classification. REACH status is unaffected for all parts.