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

Part Overview

The SFM-125-T2-L-D 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 female socket contacts rated for 3.2A per contact at 250VAC. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector family, enabling component interchangeability for design flexibility and supply chain optimization.

Substiute Parts

SFM-125-T2-L-D

Samtec Inc.In Stock: 875SFM-125-T2-L-D Datasheet

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SFM-125-02-L-D

Samtec Inc.In Stock: 1460SFM-125-02-L-D Datasheet

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SFM-125-02-L-D-A

Samtec Inc.In Stock: 1182SFM-125-02-L-D-A Datasheet

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SFM-125-02-L-D-P

Samtec Inc.In Stock: 933SFM-125-02-L-D-P Datasheet

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SFM-125-L2-L-D-A

Samtec Inc.In Stock: 932SFM-125-L2-L-D-A Datasheet

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SFM-125-02-L-D-LC

Samtec Inc.In Stock: 1075SFM-125-02-L-D-LC Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SFM-125-T2-L-D are qualified based on the following critical parameters that must remain constant:

• Connector Type: Receptacle
• Number of Positions: 50
• 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
• Current Rating: 3.2A per Contact
• Voltage Rating: 250VAC
• 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)

Substitutes differ only in optional features (Board Guide, Pick and Place, Board Lock) or minor part number designations that do not affect core electrical or mechanical compatibility. All substitute parts maintain identical contact geometry, mating pitch, current capacity, and environmental ratings.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the primary part SFM-125-T2-L-D. Selection among substitutes should be based on application-specific requirements:

SFM-125-02-L-D provides the baseline configuration with highest inventory availability (1426 Pcs) and no additional features, suitable for standard board-to-board applications.

SFM-125-02-L-D-A and SFM-125-L2-L-D-A include Board Guide features for enhanced mechanical alignment during mating operations.

SFM-125-02-L-D-P incorporates Pick and Place features for automated assembly processes.

SFM-125-02-L-D-LC includes Board Lock features for secure mechanical retention.

All parts share identical electrical performance, contact ratings, and environmental specifications. Part selection should prioritize application assembly methodology and mechanical retention requirements rather than electrical parameters, as these remain constant across the substitute family.

Frequently Asked Questions (FAQ)

Q: Can SFM-125-02-L-D be used as a direct replacement for SFM-125-T2-L-D?

A: Yes. Both parts maintain identical electrical and mechanical specifications including 50-position configuration, 0.050" (1.27mm) pitch, 3.2A per contact current rating, 250VAC voltage rating, and surface mount termination. The parts are electrically and mechanically interchangeable.

Q: What is the difference between SFM-125-02-L-D-A and SFM-125-L2-L-D-A?

A: Both parts include Board Guide features and maintain identical electrical and mechanical parameters. The difference lies in part number designation only; both are functionally equivalent for connector applications.

Q: Does the Board Lock feature in SFM-125-02-L-D-LC affect electrical performance?

A: No. The Board Lock feature is a mechanical retention enhancement that does not alter electrical characteristics, current capacity, voltage rating, or contact geometry. All electrical specifications remain identical to the base SFM-125-02-L-D configuration.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance status, meeting regulatory requirements for hazardous substance restrictions.

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

A: Yes. All substitute parts are rated for -55°C to 125°C operating temperature range, supporting extended thermal environments.

Q: What is the moisture sensitivity level for these connectors?

A: All parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Are there any differences in contact finish between substitute parts?

A: No. All substitute parts feature gold-plated mating contacts with 10.0µin (0.25µm) thickness and tin-plated post contacts, maintaining identical contact finish specifications.