SFC-120-T2-L-D-A-TR Equivalent & Substitute Parts

Part Overview

The SFC-120-T2-L-D-A-TR is a 40-position receptacle connector from Samtec Inc.'s Tiger Eye™ SFC series, designed for board-to-board or cable applications with 0.050" (1.27mm) pitch surface mount termination. This connector features gold-plated mating contacts, push-pull fastening, and operates across -55°C to 125°C. The part is currently active in production and ROHS3 compliant. Identifying equivalent substitute parts is necessary to ensure supply chain flexibility, evaluate alternative packaging options, and maintain design compatibility across procurement cycles.

Substiute Parts

SFC-120-T2-L-D-A-TR

Samtec Inc.In Stock: 805SFC-120-T2-L-D-A-TR Datasheet

Current PartRFQ

5-104652-4

TE Connectivity AMP ConnectorsIn Stock: 23295-104652-4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 5-104652-4 (TE Connectivity AMP Connectors) qualifies as an equivalent based on the following critical parameters:

• Connector Configuration: Both parts are 40-position receptacle connectors with 2 rows and 0.050" (1.27mm) pitch in both mating and row spacing dimensions
• Contact System: Both feature female socket contacts with square geometry and gold mating finish
• Mounting & Termination: Both are surface mount connectors with solder termination and push-pull fastening
• Insulation Material: Both use Liquid Crystal Polymer (LCP) insulation
• Compliance: Both are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating
• Electrical Classification: Both are classified under HTSUS 8536.69.4040 and ECCN EAR99

Substitution is valid where the design requirements do not mandate specific features unique to either part, such as the Tiger Eye™ series board guide feature or the AMPMODU 50/50 Grid board lock feature.

Parameter Comparison

Engineering Selection Recommendations

Both parts are active products with ROHS3 compliance and identical moisture sensitivity ratings, making them suitable for equivalent selection in applications where the specified parameters align. The SFC-120-T2-L-D-A-TR provides documented current (3.1A per contact) and voltage (350VAC) ratings, while the 5-104652-4 does not specify these values in the provided data. The SFC-120-T2-L-D-A-TR operates to -55°C, providing a 10°C lower temperature floor compared to the 5-104652-4 at -65°C, though the SFC-120-T2-L-D-A-TR's upper limit of 125°C exceeds the 5-104652-4's 105°C maximum. Contact finish thickness differs (10.0µin versus 30.0µin), and insulation height varies by 0.007" (0.18mm). Packaging differs between Tape & Reel and Tube formats. Selection should be based on specific application temperature requirements, electrical load specifications, and procurement packaging preferences.

Frequently Asked Questions (FAQ)

Q: Can the 5-104652-4 directly replace the SFC-120-T2-L-D-A-TR in all applications?

A: Direct substitution is valid where application requirements do not exceed the 5-104652-4's operating temperature range (-65°C to 105°C) and where electrical load specifications are not dependent on the documented 3.1A per contact and 350VAC ratings of the SFC-120-T2-L-D-A-TR. The mechanical pitch, row configuration, and contact geometry are identical, ensuring PCB footprint compatibility.

Q: What are the key differences between these two connectors?

A: The primary differences are: (1) operating temperature ranges (-55°C to 125°C versus -65°C to 105°C), (2) contact finish thickness on mating surfaces (10.0µin versus 30.0µin), (3) insulation height (0.180" versus 0.187"), (4) contact material composition (Phosphor Bronze versus Copper Alloy), (5) packaging format (Tape & Reel versus Tube), and (6) series designation (Tiger Eye™ SFC versus AMPMODU 50/50 Grid). Electrical ratings are specified for the SFC-120-T2-L-D-A-TR but not provided for the 5-104652-4.

Q: Are there mechanical compatibility concerns with the different insulation heights?

A: The insulation height difference of 0.007" (0.18mm) is within typical PCB assembly tolerances for surface mount connectors. However, designs with tight vertical clearance constraints should verify compatibility with the specific mated connector and board layout before substitution.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel and Tube packaging formats do not affect electrical or mechanical performance. The difference is purely logistical, relating to component handling, storage, and automated assembly processes. Selection should be based on procurement and manufacturing workflow requirements.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant, carry MSL 1 (Unlimited) moisture sensitivity ratings, are classified under ECCN EAR99, and share the same HTSUS code (8536.69.4040). Both manufacturers maintain REACH compliance status, though the TE Connectivity part lists REACH status as Vendor Undefined in the provided data.