SFC-145-T2-L-D Equivalent & Substitute Parts

Part Overview

The SFC-145-T2-L-D is a 90-position receptacle connector from Samtec Inc.'s Tiger Eye™ SFC 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 3.1A per contact at 350VAC. The part maintains active product status with full RoHS3 compliance and MSL 1 rating, making it suitable for high-reliability applications requiring compact interconnection solutions.

Identifying equivalent and substitute parts is necessary when addressing inventory constraints, lead time requirements, or design flexibility needs while maintaining electrical and mechanical compatibility within the Tiger Eye™ SFC connector family.

Substiute Parts

SFC-145-T2-L-D

Samtec Inc.In Stock: 1235SFC-145-T2-L-D Datasheet

Current PartRFQ

SFC-145-T2-L-D-A

Samtec Inc.In Stock: 1139SFC-145-T2-L-D-A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution within the SFC-145-T2-L-D family is determined by strict equivalence across the following critical parameters:

• Connector Type & Position Count: Receptacle configuration with 90 positions
• Pitch & Row Spacing: 0.050" (1.27mm) mating pitch and row spacing
• Mounting & Termination: Surface mount with solder termination
• Contact Specifications: Female socket contacts with gold mating finish
• Electrical Ratings: 3.1A per contact at 350VAC
• Environmental Compliance: ROHS3 compliance and MSL 1 rating
• Operating Range: -55°C ~ 125°C temperature specification

The substitute part SFC-145-T2-L-D-A maintains identical electrical and mechanical parameters with the addition of a board guide feature. This feature does not alter the core substitution criteria and represents a design enhancement within the same connector family.

Parameter Comparison

Engineering Selection Recommendations

Both SFC-145-T2-L-D and SFC-145-T2-L-D-A are active products with full ROHS3 compliance and MSL 1 rating, ensuring equivalent reliability and regulatory standing for high-reliability applications.

The SFC-145-T2-L-D-A incorporates a board guide feature that enhances mechanical alignment during mating operations. This feature does not modify electrical performance, current capacity, voltage rating, or thermal operating range. Selection between these parts depends on whether the board guide feature is required for the specific application's assembly or mechanical design constraints.

Both parts share identical electrical specifications, contact materials, and environmental ratings, making them fully interchangeable from an electrical and thermal perspective.

Frequently Asked Questions (FAQ)

Q: Are SFC-145-T2-L-D and SFC-145-T2-L-D-A electrically interchangeable?

A: Yes. Both parts maintain identical current ratings (3.1A per contact), voltage ratings (350VAC), operating temperature ranges (-55°C ~ 125°C), and contact specifications. Electrical performance is equivalent.

Q: What is the functional difference between these two parts?

A: The SFC-145-T2-L-D-A includes a board guide feature for enhanced mechanical alignment. The base connector SFC-145-T2-L-D does not include this feature. Both maintain identical mating pitch, row spacing, and contact geometry.

Q: Can I substitute SFC-145-T2-L-D-A for SFC-145-T2-L-D in existing designs?

A: Direct substitution is possible from an electrical standpoint. However, the board guide feature on the SFC-145-T2-L-D-A may require PCB layout modifications to accommodate the guide structure. Mechanical fit must be verified against the specific board design.

Q: Do both parts meet the same compliance standards?

A: Yes. Both SFC-145-T2-L-D and SFC-145-T2-L-D-A are ROHS3 compliant with MSL 1 rating and active product status.

Q: What is the mating pitch specification for these connectors?

A: Both parts feature 0.050" (1.27mm) mating pitch with 0.050" (1.27mm) row spacing in a 2-row configuration, supporting 90 total positions.

Q: Are there any thermal or environmental differences between these parts?

A: No. Both parts operate across the identical temperature range of -55°C ~ 125°C and share the same insulation material (Liquid Crystal Polymer) and moisture sensitivity rating (MSL 1).