Samtec TFC-115-31-F-D Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Samtec TFC-115-31-F-D is an active, through-hole rectangular connector header from the Tiger Eye™ TFC series. This shrouded 4-wall header accommodates 30 positions in a 2-row configuration with 0.050" (1.27mm) pitch spacing, designed for board-to-board or cable interconnection applications. The connector features gold-plated mating contacts and tin-plated posts with phosphor bronze contact material, rated for 3.1A per contact at 275VAC operation across -55°C to 125°C temperature range.

Identifying equivalent substitute parts is essential for supply chain continuity, inventory optimization, and design flexibility when the primary part number becomes unavailable or when alternative sourcing improves lead times and cost efficiency.

Substiute Parts

TFC-115-31-F-D

Samtec Inc.In Stock: 995TFC-115-31-F-D Datasheet

Current PartRFQ

TFC-115-31-F-D-A

Samtec Inc.In Stock: 1410TFC-115-31-F-D-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TFC-115-31-F-D is determined by strict equivalence across the following critical parameters:

• Connector Type & Contact Configuration: Header with male pin contacts
• Position Count & Row Configuration: 30 positions in 2-row arrangement
• Pitch Specifications: 0.050" (1.27mm) mating pitch and 0.050" (1.27mm) row spacing
• Shrouding & Mounting: Shrouded 4-wall design with through-hole mounting
• Electrical Ratings: 3.1A per contact at 275VAC minimum
• Temperature Range: -55°C to 125°C operation
• Contact Materials & Finishes: Phosphor bronze with gold mating finish and tin post finish
• Insulation Material: Liquid Crystal Polymer (LCP)
• Compliance: UL94 V-0 flammability rating, ROHS3 compliance, MSL 1

The substitute part TFC-115-31-F-D-A meets all these criteria and is classified as an equivalent substitute within the Tiger Eye™ TFC series.

Parameter Comparison

Engineering Selection Recommendations

Both TFC-115-31-F-D and TFC-115-31-F-D-A are active products from Samtec Inc. with full ROHS3 compliance and UL94 V-0 flammability certification. All critical electrical, mechanical, and thermal parameters are identical between the two part numbers.

The TFC-115-31-F-D-A includes a board guide feature not present in the base TFC-115-31-F-D. This feature provides enhanced mechanical alignment during mating operations and may improve assembly reliability in high-volume production environments. The board guide does not alter electrical performance, current capacity, voltage rating, or temperature operating range.

Selection between these equivalent parts should be based on:

• Availability and lead time requirements
• Inventory levels (TFC-115-31-F-D-A currently has higher stock availability at 1338 pcs versus 930 pcs for TFC-115-31-F-D)
• Design preference for board guide alignment assistance
• Cost considerations if applicable

Both parts are suitable for direct substitution in applications requiring 30-position, 0.050" pitch rectangular connectors with through-hole solder termination and 3.1A per contact current capacity.

Frequently Asked Questions (FAQ)

Q: Can TFC-115-31-F-D-A be used as a direct replacement for TFC-115-31-F-D?

A: Yes. All critical electrical, mechanical, and thermal specifications are identical. The TFC-115-31-F-D-A includes an additional board guide feature that does not affect electrical performance or compatibility.

Q: What is the significance of the board guide feature in TFC-115-31-F-D-A?

A: The board guide provides mechanical alignment assistance during connector mating. It improves positional accuracy and can reduce assembly errors in production environments but does not alter electrical ratings or performance characteristics.

Q: Are both parts RoHS compliant?

A: Yes. Both TFC-115-31-F-D and TFC-115-31-F-D-A are ROHS3 compliant with UL94 V-0 flammability certification.

Q: What is the current rating per contact?

A: Both parts are rated for 3.1A per contact at 275VAC across the -55°C to 125°C operating temperature range.

Q: Can these connectors be used in high-temperature applications?

A: Yes. Both parts operate across -55°C to 125°C. The liquid crystal polymer insulation material and phosphor bronze contacts support this full temperature range.

Q: What is the pitch spacing for these connectors?

A: Both parts feature 0.050" (1.27mm) mating pitch with 0.050" (1.27mm) row spacing in a 2-row, 30-position configuration.

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

A: No. Both parts have identical contact finishes: gold-plated mating contacts (3.00µin thickness) and tin-plated posts.

Q: What is the moisture sensitivity level for these connectors?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.