FTR-105-03-S-D Equivalent & Substitute Parts

Part Overview

The FTR-105-03-S-D is a surface mount rectangular connector header manufactured by Samtec Inc., designed for board-to-board applications. This 10-position connector operates across -55°C to 125°C and is ROHS3 compliant with UL94 V-0 flammability rating. The part is currently active in production with 1162 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, enabling component sourcing flexibility and supply chain continuity.

Substiute Parts

FTR-105-03-S-D

Samtec Inc.In Stock: 1207FTR-105-03-S-D Datasheet

Current PartRFQ

EHF-105-01-L-D-RA

Samtec Inc.In Stock: 5493EHF-105-01-L-D-RA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FTR-105-03-S-D is determined by the following critical parameters:

• Pitch - Mating: 0.050" (1.27mm) — mechanical compatibility with mating connectors
• Number of Positions: 10 — circuit connectivity requirements
• Number of Rows: 2 — physical layout constraints
• Contact Type: Male Pin — interface specification
• Contact Material: Phosphor Bronze — electrical conductivity and durability
• Contact Finish - Mating: Gold — corrosion resistance and signal integrity
• Insulation Material: Liquid Crystal Polymer (LCP) — thermal and mechanical stability
• Operating Temperature: -55°C ~ 125°C — environmental performance envelope
• RoHS Status: ROHS3 Compliant — regulatory compliance

The identified substitute EHF-105-01-L-D-RA shares the same pitch, position count, row configuration, contact material, mating finish, insulation material, operating temperature range, and RoHS compliance. Differences in mounting type (through hole vs. surface mount), shrouding configuration, and current rating reflect distinct application contexts while maintaining core electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both FTR-105-03-S-D and EHF-105-01-L-D-RA are active products from Samtec Inc. with ROHS3 compliance and identical operating temperature ranges. Selection between these parts depends on application-specific requirements:

The FTR-105-03-S-D is appropriate for surface mount applications requiring higher current capacity (3.1A per contact) and unshrouded header configuration. The EHF-105-01-L-D-RA serves through-hole, right-angle applications with shrouded design and lower current requirements (1.75A per contact). Both maintain equivalent electrical performance through identical pitch, position count, contact material, and gold mating finish specifications. Current rating differences must be evaluated against circuit load requirements. Mounting type and shrouding differences are determined by PCB layout and mechanical constraints.

Frequently Asked Questions (FAQ)

Q: Can EHF-105-01-L-D-RA directly replace FTR-105-03-S-D in existing designs?

A: Direct replacement requires PCB layout modification. The FTR-105-03-S-D uses surface mount termination while EHF-105-01-L-D-RA requires through-hole mounting. Additionally, the EHF part features right-angle orientation and shrouded design, which alter physical footprint and connector approach angle. Electrical compatibility exists through matched pitch, position count, and contact specifications.

Q: What are the current rating implications for substitution?

A: The FTR-105-03-S-D supports 3.1A per contact while EHF-105-01-L-D-RA supports 1.75A per contact. Applications requiring current levels between 1.75A and 3.1A per contact must use the FTR-105-03-S-D. Applications operating below 1.75A per contact are compatible with either part.

Q: Are both parts RoHS compliant?

A: Yes. Both FTR-105-03-S-D and EHF-105-01-L-D-RA are ROHS3 compliant and suitable for applications with RoHS regulatory requirements.

Q: How do shrouding differences affect connector selection?

A: The FTR-105-03-S-D is unshrouded, providing open access to contacts. The EHF-105-01-L-D-RA features 4-wall shrouding, which provides mechanical protection and keying slot functionality. Shrouding selection depends on application requirements for contact protection and mating interface control.

Q: Do both connectors operate across the same temperature range?

A: Yes. Both parts operate from -55°C to 125°C, providing equivalent thermal performance for industrial and extended temperature applications.