TFML-140-02-S-D Equivalent & Substitute Parts

Part Overview

The TFML-140-02-S-D is a surface mount rectangular connector header manufactured by Samtec Inc. as part of the Tiger Eye™ TFML series. This 80-position, dual-row connector operates at 0.050" (1.27mm) pitch and is designed for board-to-board applications with friction lock fastening. The part is currently active in production with 752 units in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part specifications, enabling direct replacement in applications where connector compatibility is maintained across pitch, position count, row configuration, mounting type, and termination method.

Substiute Parts

TFML-140-02-S-D

Samtec Inc.In Stock: 799TFML-140-02-S-D Datasheet

Current PartRFQ

104655-9

TE Connectivity AMP ConnectorsIn Stock: 1034104655-9 Datasheet

MFR RecommendedRFQ

5-104655-9

TE Connectivity AMP ConnectorsIn Stock: 8445-104655-9 Datasheet

MFR RecommendedRFQ

87409-140LF

Amphenol ICC (FCI)In Stock: 224387409-140LF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TFML-140-02-S-D is determined by strict alignment of the following critical parameters:

• Number of Positions: 80
• Number of Rows: 2
• Pitch - Mating: 0.050" (1.27mm)
• Row Spacing - Mating: 0.050" (1.27mm)
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Surface Mount
• Termination: Solder
• Shrouding: Shrouded - 4 Wall
• Insulation Material: Liquid Crystal Polymer (LCP)
• Material Flammability Rating: UL94 V-0

The identified substitute parts meet these core electrical and mechanical requirements, enabling functional equivalence in board-to-board connector applications. Variations in fastening type, contact finish thickness, insulation height, and operating temperature range do not preclude substitution when the primary mating and structural parameters remain constant.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 87409-140LF (Amphenol ICC)

The 87409-140LF meets all critical mating and structural parameters required for direct substitution. This part is currently active in production with 2152 units in stock. It maintains RoHS compliance and operates across an extended temperature range (-55°C ~ 130°C), providing broader environmental coverage than the main part. The contact length variation (0.130" vs. 0.134") and insulation material difference (thermoplastic, glass filled vs. LCP) do not affect functional compatibility in standard board-to-board applications.

Secondary Substitute: 5-104655-9 (TE Connectivity AMP Connectors)

The 5-104655-9 provides equivalent electrical and mechanical performance with ROHS3 compliance matching the main part. This part is currently discontinued at DiGi Electronics, limiting availability. The operating temperature range (-65°C ~ 105°C) is narrower than the main part, and the contact length is shorter (0.120" vs. 0.134"). These variations do not preclude substitution in applications operating within the specified temperature envelope.

Alternative Substitute: 104655-9 (TE Connectivity AMP Connectors)

The 104655-9 shares identical specifications with 5-104655-9 but carries RoHS non-compliance status. This part is active in production with 943 units in stock. Selection of this part requires verification of RoHS requirements in the target application. The operating temperature range and contact length specifications are identical to 5-104655-9.

Frequently Asked Questions (FAQ)

Q: Can the 87409-140LF replace the TFML-140-02-S-D in all applications?

A: The 87409-140LF meets all critical mating and structural parameters. The fastening type differs (push-pull vs. friction lock), which may affect mechanical engagement characteristics. Verify connector interface compatibility in the target application before deployment.

Q: What is the significance of the contact length variation between these parts?

A: Contact length variations (0.120" to 0.134") affect mating depth and engagement force. These differences are within acceptable tolerances for standard board-to-board connector applications. Verify PCB pad layout and connector cavity depth compatibility when substituting.

Q: Are the TE Connectivity parts (104655-9 and 5-104655-9) interchangeable?

A: These parts share identical electrical and mechanical specifications. The primary difference is RoHS compliance status and product availability. 5-104655-9 is ROHS3 compliant and discontinued; 104655-9 is RoHS non-compliant and currently active. Selection depends on regulatory requirements and supply chain availability.

Q: Does the insulation material difference affect performance?

A: The TFML-140-02-S-D uses Liquid Crystal Polymer (LCP) insulation, while the 87409-140LF uses thermoplastic, glass-filled material. Both materials meet UL94 V-0 flammability requirements and maintain equivalent electrical properties in standard operating conditions. Material selection does not preclude substitution.

Q: What is the impact of operating temperature range differences?

A: The main part operates -55°C ~ 125°C. The 87409-140LF extends to 130°C; the TE Connectivity parts limit to 105°C. Verify application operating conditions fall within the substitute part's specified range before selection.

Q: How do fastening type differences affect connector selection?

A: The TFML-140-02-S-D uses friction lock fastening; substitute parts use push-pull fastening. These mechanisms provide different engagement and release characteristics. Verify mating connector compatibility and mechanical interface requirements in the target application.