SFM-140-L2-S-D-P-TR Equivalent & Substitute Parts

Part Overview

The SFM-140-L2-S-D-P-TR is an 80-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 maintains Active product status with full RoHS3 compliance and MSL 1 rating, making it suitable for high-reliability electronic assemblies. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and component availability across manufacturing cycles.

Substiute Parts

SFM-140-L2-S-D-P-TR

Samtec Inc.In Stock: 1066SFM-140-L2-S-D-P-TR Datasheet

Current PartRFQ

SFM-140-L2-S-D-K-TR

Samtec Inc.In Stock: 1413SFM-140-L2-S-D-K-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SFM-140-L2-S-D-P-TR is determined by strict equivalence across the following critical parameters:

• Connector Type & Contact Configuration: Receptacle with female socket contacts
• Position Count & Arrangement: 80 positions in 2-row configuration
• Pitch Specifications: 0.050" (1.27mm) mating pitch and row spacing
• Mounting & Termination: Surface mount with solder termination
• Electrical Performance: 3.2A per contact at 250VAC
• Environmental Compliance: RoHS3 compliance and MSL 1 rating
• Operating Range: -55°C to 125°C temperature specification
• Contact Material & Finish: Beryllium copper with gold mating finish (30.0µin thickness) and tin post finish

The substitute part SFM-140-L2-S-D-K-TR matches all critical parameters with the main part, differing only in fastening type designation (K versus P suffix), which represents a variation within the same connector family that maintains full electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the SFM-140-L2-S-D-P-TR and SFM-140-L2-S-D-K-TR maintain Active product status with full RoHS3 compliance and identical electrical and mechanical specifications. Selection between these parts is based on supply availability and inventory levels. The SFM-140-L2-S-D-K-TR currently maintains higher inventory (1377 pcs) compared to the main part (967 pcs), making it a viable alternative for procurement planning. Both parts carry MSL 1 rating, eliminating moisture sensitivity constraints for storage and handling. The UL94 V-0 flammability rating and beryllium copper contact construction ensure consistent performance across the specified -55°C to 125°C operating range.

Frequently Asked Questions (FAQ)

Q: What determines if SFM-140-L2-S-D-K-TR can substitute for SFM-140-L2-S-D-P-TR?

A: The substitute part matches all critical electrical and mechanical parameters: 80-position receptacle configuration, 0.050" (1.27mm) pitch, surface mount termination, 3.2A per contact rating at 250VAC, and identical contact materials and finishes. Both parts are from the same Tiger Eye™ SFM series with Active status and ROHS3 compliance.

Q: Are there any differences in mated stacking heights between these parts?

A: Both parts support identical mated stacking heights: 6.15mm, 6.30mm, 7.92mm, 8.08mm, 9.70mm, 9.86mm, 11.61mm, and 11.76mm. Stacking height selection depends on application requirements and is independent of part number selection.

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

A: Yes. The SFM-140-L2-S-D-K-TR is a direct substitute for the SFM-140-L2-S-D-P-TR. Both connectors maintain identical footprints, electrical ratings, and mechanical interfaces suitable for board-to-board or cable applications.

Q: What is the significance of the P and K suffixes in the part numbers?

A: The P and K suffixes denote fastening type variations within the Tiger Eye™ SFM series. Both variants maintain full compatibility across all specified electrical and mechanical parameters.

Q: Are moisture sensitivity considerations a factor in part selection?

A: No. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints. Standard handling and storage practices apply without special desiccant or baking requirements.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant and carry UL94 V-0 flammability rating. ECCN classification is EAR99 for both parts, and HTSUS code is 8536.69.4040.