SFM-125-T2-S-D-LC Equivalent & Substitute Parts

Part Overview

The SFM-125-T2-S-D-LC 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 currently active in production with 1103 units in stock. Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility within the same product series.

Substiute Parts

SFM-125-T2-S-D-LC

Samtec Inc.In Stock: 1198SFM-125-T2-S-D-LC Datasheet

Current PartRFQ

SFM-125-02-S-D-LC

Samtec Inc.In Stock: 2630SFM-125-02-S-D-LC Datasheet

SimilarRFQ

SFM-125-L2-S-D-LC

Samtec Inc.In Stock: 1238SFM-125-L2-S-D-LC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SFM-125-T2-S-D-LC are identified based on strict electrical and mechanical parameter matching within the Tiger Eye™ SFM series. The following parameters determine substitution eligibility:

• 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 range: -55°C ~ 125°C
• Material flammability rating: UL94 V-0
• Insulation material: Liquid Crystal Polymer (LCP)
• Contact material: Beryllium Copper
• Fastening type: Push-Pull
• Features: Board Lock

The substitute parts SFM-125-02-S-D-LC and SFM-125-L2-S-D-LC meet all these criteria and are therefore electrically and mechanically interchangeable with the main part number.

Parameter Comparison

Engineering Selection Recommendations

All three part numbers—SFM-125-T2-S-D-LC, SFM-125-02-S-D-LC, and SFM-125-L2-S-D-LC—are active products from Samtec Inc. with identical electrical and mechanical specifications. Each part is ROHS3 compliant, carries EAR99 export classification, and meets UL94 V-0 flammability requirements. Selection between these interchangeable parts may be based on inventory availability: SFM-125-02-S-D-LC has the highest stock level at 2570 units, followed by SFM-125-L2-S-D-LC at 1196 units, and SFM-125-T2-S-D-LC at 1103 units.

Frequently Asked Questions (FAQ)

Q: Are SFM-125-02-S-D-LC and SFM-125-L2-S-D-LC direct substitutes for SFM-125-T2-S-D-LC?

A: Yes. All three part numbers share identical electrical and mechanical parameters, including connector type, position count, pitch, mounting type, contact ratings, and operating temperature range. They are electrically and mechanically interchangeable within the Tiger Eye™ SFM series.

Q: What determines compatibility between these three part numbers?

A: Compatibility is determined by matching specifications across all critical parameters: 50-position receptacle configuration, 0.050" (1.27mm) pitch, surface mount termination, 3.2A per contact current rating, 250VAC voltage rating, and -55°C to 125°C operating temperature range. All three parts meet these criteria.

Q: Do these parts have different compliance or certification status?

A: No. All three parts are ROHS3 compliant, carry MSL 1 (Unlimited) moisture sensitivity rating, and share identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications.

Q: Can I use these parts interchangeably in my PCB design?

A: Yes. The identical mating pitch, row spacing, insulation height, and stacking heights ensure mechanical and electrical compatibility. No design modifications are required when substituting between these part numbers.

Q: Are there any differences in contact finish or material composition?

A: No. All three parts feature gold-plated mating contacts at 30.0µin (0.76µm) thickness, tin-plated posts, beryllium copper contact material, and liquid crystal polymer insulation.