TFC-125-02-L-D Equivalent & Substitute Parts

Part Overview

The TFC-125-02-L-D is a rectangular connector header manufactured by Samtec Inc. as part of the Tiger Eye™ TFC series. This surface mount connector features 50 positions arranged in 2 rows with 0.050" (1.27mm) pitch spacing, designed for board-to-board or cable applications. The part is currently active in production with 616 units in stock. Alternative part numbers within this series are available to support procurement flexibility, inventory management, and design optimization across compatible applications.

Substiute Parts

TFC-125-02-L-D

Samtec Inc.In Stock: 666TFC-125-02-L-D Datasheet

Current PartRFQ

TFC-125-02-L-D-A

Samtec Inc.In Stock: 1177TFC-125-02-L-D-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TFC-125-02-L-D is determined by strict equivalence across the following critical parameters:

• Connector Type: Header
• Contact Type: Male Pin
• Number of Positions: 50
• Number of Rows: 2
• Pitch - Mating: 0.050" (1.27mm)
• Row Spacing - Mating: 0.050" (1.27mm)
• Mounting Type: Surface Mount
• Shrouding: Shrouded - 4 Wall
• Contact Finish - Mating: Gold
• Contact Material: Phosphor Bronze
• Insulation Material: Liquid Crystal Polymer (LCP)
• Current Rating: 3.1A per Contact
• Voltage Rating: 275VAC
• Operating Temperature: -55°C ~ 125°C
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant

The substitute part TFC-125-02-L-D-A maintains identical electrical and mechanical specifications across all critical parameters. Both parts belong to the same Tiger Eye™ TFC series and share the same base product number (TFC-125), confirming full compatibility for direct substitution in applications requiring this connector configuration.

Parameter Comparison

Engineering Selection Recommendations

Both TFC-125-02-L-D and TFC-125-02-L-D-A are active production parts manufactured by Samtec Inc. and fully compliant with ROHS3 and UL94 V-0 flammability requirements. The parts are electrically and mechanically equivalent across all critical specifications including connector type, contact configuration, pitch spacing, current and voltage ratings, and operating temperature range.

The TFC-125-02-L-D-A includes a Board Guide feature not present in the TFC-125-02-L-D. This feature provides additional mechanical alignment during mating operations. Selection between these parts should be based on whether board-level alignment guidance is required for the specific application. Both parts maintain identical electrical performance and environmental compliance.

Inventory availability differs between the two parts, with TFC-125-02-L-D-A currently showing higher stock levels (1096 units versus 616 units). This may influence procurement decisions for high-volume applications or extended lead time mitigation.

Frequently Asked Questions (FAQ)

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

A: Yes. Both parts are electrically and mechanically equivalent. They share identical pitch spacing (0.050"), position count (50), row configuration (2 rows), contact materials, finish specifications, current and voltage ratings, and operating temperature range. The primary difference is the Board Guide feature on the TFC-125-02-L-D-A, which provides enhanced mechanical alignment without affecting electrical compatibility.

Q: What is the significance of the Board Guide feature in TFC-125-02-L-D-A?

A: The Board Guide feature provides mechanical alignment assistance during connector mating. This does not alter electrical performance or contact specifications. Selection should be based on whether your application benefits from this additional mechanical guidance.

Q: Are both parts RoHS compliant?

A: Yes. Both TFC-125-02-L-D and TFC-125-02-L-D-A are ROHS3 compliant and meet UL94 V-0 flammability requirements.

Q: What is the pitch spacing for these connectors?

A: Both parts feature 0.050" (1.27mm) pitch spacing for both mating and row spacing, ensuring compatibility with standard 50-position header applications.

Q: What is the current rating per contact?

A: Both parts are rated for 3.1A per contact at 275VAC, with an operating temperature range of -55°C to 125°C.

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

A: No. Both parts feature gold-plated mating contacts with 10.0µin (0.25µm) thickness over phosphor bronze material, ensuring consistent electrical performance and corrosion resistance.