FTMH-105-03-L-DH Equivalent & Substitute Parts

Part Overview

The FTMH-105-03-L-DH is a rectangular connector header manufactured by Samtec Inc., designed for surface mount, right-angle board-to-board applications. This connector features 10 positions arranged in 2 rows with 0.039" (1.00mm) pitch spacing. The part is discontinued at DiGi Electronics, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement.

Substiute Parts

FTMH-105-03-L-DH

Samtec Inc.In Stock: 769FTMH-105-03-L-DH Datasheet

Current PartRFQ

BC057-10-A-A-0150-L-C

GCTIn Stock: 3973BC057-10-A-A-0150-L-C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The BC057-10-A-A-0150-L-C from GCT qualifies as a substitute based on the following critical parameters:

• Connector Type & Contact Configuration: Both are male pin headers with identical 10-position, 2-row arrangement
• Pitch Specifications: Both maintain 0.039" (1.00mm) mating pitch and 0.039" (1.00mm) row spacing
• Mounting & Termination: Both are surface mount, right-angle, solder-terminated connectors with push-pull fastening
• Contact Geometry: Both feature square contact shapes with gold mating finish
• Insulation Material & Compliance: Both use LCP insulation with UL94 V-0 flammability rating and ROHS3 compliance

Substitution is valid where the electrical and mechanical interface requirements align with these core parameters.

Parameter Comparison

Engineering Selection Recommendations

The BC057-10-A-A-0150-L-C is an active product with equivalent mechanical and electrical interface specifications to the discontinued FTMH-105-03-L-DH. Both connectors maintain identical pitch, row spacing, contact configuration, and mounting orientation. Both are ROHS3 compliant with UL94 V-0 flammability certification and MSL 1 moisture sensitivity rating.

Design considerations for substitution:

• Operating Temperature Range: The FTMH-105-03-L-DH operates from -55°C to 125°C, while the BC057-10-A-A-0150-L-C operates from -40°C to 105°C. Applications requiring the full -55°C lower limit or sustained operation above 105°C require thermal analysis.
• Current Rating: The FTMH-105-03-L-DH is rated at 2.8A per contact, while the BC057-10-A-A-0150-L-C is rated at 1A per contact. Applications exceeding 1A per contact require current distribution analysis.
• Product Availability: The BC057-10-A-A-0150-L-C is actively manufactured and stocked, supporting long-term procurement continuity.

Frequently Asked Questions (FAQ)

Q: Can the BC057-10-A-A-0150-L-C directly replace the FTMH-105-03-L-DH in existing designs?

A: Direct mechanical and electrical interface compatibility is established through matching pitch (0.039"), row spacing (0.039"), contact configuration (10 positions, 2 rows), mounting type (surface mount, right angle), and contact geometry (square, gold-plated). Substitution is valid where operating temperature and current requirements fall within the BC057-10-A-A-0150-L-C specifications.

Q: What are the key differences between these connectors?

A: The primary differences are operating temperature range (FTMH: -55°C to 125°C vs. BC057: -40°C to 105°C), current rating per contact (FTMH: 2.8A vs. BC057: 1A), and product status (FTMH: discontinued vs. BC057: active). Both share identical mechanical interfaces and compliance certifications.

Q: Are there packaging differences?

A: The BC057-10-A-A-0150-L-C is supplied in Tape & Reel (TR) packaging. Packaging specifications for the FTMH-105-03-L-DH are not provided in the reference data.

Q: Do both connectors meet the same compliance standards?

A: Both connectors are ROHS3 compliant, carry UL94 V-0 flammability certification, and have MSL 1 moisture sensitivity rating. Both use LCP insulation material.

Q: What should be evaluated before substitution?

A: Verify that the application's operating temperature range falls within -40°C to 105°C and that per-contact current requirements do not exceed 1A. Confirm mechanical fit within the PCB layout, as both connectors maintain identical pitch and row spacing.