TFML-145-02-S-D Equivalent & Substitute Parts

Part Overview

The TFML-145-02-S-D is a surface mount rectangular connector header manufactured by Samtec Inc. as part of the Tiger Eye™ TFML series. This 90-position, 2-row connector operates at 0.050" (1.27mm) pitch and features shrouded 4-wall construction with solder termination and friction lock fastening. The component is Active in product status and widely used in board-to-board applications requiring reliable interconnection in industrial and commercial environments.

Identifying equivalent and substitute parts is necessary when the primary part becomes unavailable, when supply chain optimization is required, or when design flexibility allows for alternative solutions that meet the same electrical and mechanical specifications.

Substiute Parts

TFML-145-02-S-D

Samtec Inc.In Stock: 807TFML-145-02-S-D Datasheet

Current PartRFQ

87409-145LF

Amphenol ICC (FCI)In Stock: 97987409-145LF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TFML-145-02-S-D is determined by strict alignment of the following critical parameters:

• Connector Type & Contact Type: Header with Male Pin contacts
• Position Count & Row Configuration: 90 positions in 2-row arrangement
• Pitch Specifications: 0.050" (1.27mm) mating pitch and row spacing
• Mounting & Termination: Surface mount with solder termination
• Shrouding: Shrouded 4-wall construction
• Contact Finish: Gold plating on mating surfaces
• Environmental Compliance: UL94 V-0 flammability rating and RoHS compliance
• Moisture Sensitivity: MSL 1 (Unlimited)

The substitute part 87409-145LF (Amphenol ICC / FCI, Rib-Cage™ III series) meets all critical substitution criteria. Both connectors share identical position counts, pitch specifications, mounting type, shrouding configuration, and environmental ratings. Differences in fastening type (friction lock vs. push-pull), insulation material (LCP vs. thermoplastic glass-filled), and contact length variations are within acceptable tolerance for board-to-board interconnection applications.

Parameter Comparison

Engineering Selection Recommendations

Both the TFML-145-02-S-D and 87409-145LF are Active products with equivalent compliance certifications. The TFML-145-02-S-D is ROHS3 Compliant, while the 87409-145LF is RoHS Compliant; both meet regulatory requirements for their respective markets. Both components carry UL94 V-0 flammability ratings and MSL 1 moisture sensitivity levels, indicating equivalent environmental durability.

The 87409-145LF operates across a slightly wider temperature range (-55°C ~ 130°C versus -55°C ~ 125°C) and includes documented current rating (1A DC) and mated stacking height specifications. The TFML-145-02-S-D uses friction lock fastening, while the 87409-145LF employs push-pull fastening; both mechanisms provide secure board-to-board retention.

Selection between these parts should be based on design requirements for fastening mechanism preference, insulation material compatibility (LCP versus thermoplastic glass-filled), and specific temperature or current specifications for the application.

Frequently Asked Questions (FAQ)

Q: Can the 87409-145LF directly replace the TFML-145-02-S-D in existing designs?

A: Yes, the 87409-145LF meets all critical substitution parameters: identical 90-position, 2-row configuration; 0.050" (1.27mm) pitch; surface mount solder termination; shrouded 4-wall construction; and equivalent environmental compliance. The primary design consideration is the difference in fastening mechanism (push-pull versus friction lock), which may require mechanical layout verification.

Q: What are the key differences between these two connectors?

A: The primary differences are fastening type (friction lock versus push-pull), insulation material (LCP versus thermoplastic glass-filled), contact length (0.134" versus 0.130"), and insulation height (0.220" versus 0.226"). The 87409-145LF also provides documented current rating and mated stacking height specifications. Both connectors maintain identical pitch, position count, and environmental compliance ratings.

Q: Are there any PCB layout considerations when switching between these parts?

A: The 87409-145LF has a slightly greater insulation height (0.226" versus 0.220") and different mated stacking height (6.42mm). PCB footprints should be verified for clearance compatibility, particularly in applications with height constraints or multi-connector stacking configurations.

Q: Do both connectors meet the same environmental and compliance standards?

A: Yes. Both the TFML-145-02-S-D and 87409-145LF are UL94 V-0 rated, carry MSL 1 (Unlimited) moisture sensitivity levels, and are classified under ECCN EAR99 with HTSUS code 8536.69.4040. The TFML-145-02-S-D is ROHS3 Compliant, while the 87409-145LF is RoHS Compliant; both meet regulatory requirements for their respective markets.

Q: What is the difference between friction lock and push-pull fastening?

A: Friction lock fastening (TFML-145-02-S-D) relies on mechanical friction to retain mated connectors. Push-pull fastening (87409-145LF) uses a locking mechanism that requires deliberate action to disconnect. Push-pull fastening typically provides more positive retention and is preferred in applications subject to vibration or frequent mating cycles.

Q: Can I use the 87409-145LF in applications requiring the full -55°C to 125°C temperature range?

A: Yes. The 87409-145LF operates across -55°C to 130°C, which encompasses the full -55°C to 125°C range of the TFML-145-02-S-D. The substitute part provides additional temperature margin for applications at the upper temperature limit.