FTS-145-04-FM-D Equivalent & Substitute Parts

Part Overview

The FTS-145-04-FM-D is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This connector features 90 positions arranged in 2 rows with 0.050" (1.27mm) pitch spacing, suitable for board-to-board or cable interconnections. The part is currently active in production with 804 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when design requirements permit equivalent configurations.

Substiute Parts

FTS-145-04-FM-D

Samtec Inc.In Stock: 898FTS-145-04-FM-D Datasheet

Current PartRFQ

FTSH-145-04-F-D

Samtec Inc.In Stock: 816FTSH-145-04-F-D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FTS-145-04-FM-D is determined by the following critical parameters:

• Connector Type & Contact Configuration: Header with male pins, cuttable design
• Position Count & Row Configuration: 90 positions in 2 rows
• Pitch Specifications: 0.050" (1.27mm) mating pitch and row spacing
• Mounting & Termination: Through-hole solder termination
• Contact Materials & Finishes: Phosphor bronze with gold mating finish and tin post finish
• Insulation Material: Liquid Crystal Polymer (LCP)
• Electrical Performance: 3.4A per contact current rating
• Environmental Compliance: UL94 V-0 flammability rating, ROHS3 compliance

The FTSH-145-04-F-D qualifies as a substitute part because it maintains equivalence across all critical electrical and mechanical parameters. Differences in overall contact length and insulation height do not affect functional compatibility when the mating interface and electrical characteristics remain identical.

Parameter Comparison

Engineering Selection Recommendations

Both the FTS-145-04-FM-D and FTSH-145-04-F-D are active production parts from Samtec Inc. with full ROHS3 compliance and UL94 V-0 flammability certification. The electrical and mating interface specifications are identical, ensuring functional equivalence in board-to-board and cable interconnection applications.

The FTSH-145-04-F-D features increased overall contact length (0.339" versus 0.274") and insulation height (0.099" versus 0.034"), which may affect board layout and clearance considerations. Selection between these parts should be based on specific PCB design requirements, available board space, and packaging preferences. Both parts maintain identical current ratings, temperature operating range, and contact material specifications.

Frequently Asked Questions (FAQ)

Q: Can the FTSH-145-04-F-D be used as a direct replacement for the FTS-145-04-FM-D?

A: The FTSH-145-04-F-D is electrically and mechanically compatible at the mating interface. However, the increased overall contact length and insulation height require verification of PCB layout clearances and board-to-board spacing before implementation.

Q: What are the key differences between these two part numbers?

A: The primary differences are overall contact length (0.274" for FTS-145-04-FM-D versus 0.339" for FTSH-145-04-F-D) and insulation height (0.034" versus 0.099"). All electrical parameters, mating pitch, contact configuration, and material specifications remain identical.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both the FTS-145-04-FM-D and FTSH-145-04-F-D operate across the identical temperature range of -55°C to 125°C.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant and carry UL94 V-0 flammability certification.

Q: What is the current rating for each contact?

A: Both parts are rated for 3.4A per contact.

Q: How do the packaging options differ?

A: The FTS-145-04-FM-D is supplied without specified packaging, while the FTSH-145-04-F-D is packaged in tubes.