TL3750AF100QG Equivalent & Substitute Parts

Part Overview

The TL3750AF100QG is a tactile switch manufactured by E-Switch, classified as SPST-NO (Single Pole Single Throw - Normally Open) with a contact rating of 0.05A at 12VDC. This surface mount component features top actuation with a 100gf operating force and 0.13mm switch travel. The product is currently obsolete, making identification of suitable substitute components essential for ongoing design support, maintenance, and production continuity.

Substiute Parts

TL3750AF100QG

E-SwitchIn Stock: 715TL3750AF100QG Datasheet

Current PartRFQ

TL3780AF240QG

E-SwitchIn Stock: 132161TL3780AF240QG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TL3750AF100QG is determined by strict equivalence in the following critical parameters:

• Circuit configuration (SPST-NO)
• Contact rating (0.05A @ 12VDC)
• Mounting type (Surface Mount)
• Actuator orientation (Top Actuated)
• Outline dimensions (3.00mm x 2.00mm)
• Termination style (Gull Wing)
• Switch travel (0.13mm)

The TL3780AF240QG qualifies as a substitute based on matching all critical electrical and mechanical parameters. Variations in operating force (100gf vs. 240gf), mechanical life (300,000 vs. 500,000 cycles), operating temperature range (-30°C ~ 85°C vs. -40°C ~ 85°C), and product status do not preclude substitution when the primary functional requirements are met.

Parameter Comparison

Engineering Selection Recommendations

The TL3780AF240QG is the manufacturer-recommended substitute for the obsolete TL3750AF100QG. Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment. The substitute part is currently in active production with significantly higher inventory availability (132,090 pcs vs. 685 pcs), providing supply chain stability.

The TL3780AF240QG offers enhanced mechanical durability with 500,000 cycle life compared to 300,000 cycles, and an extended lower operating temperature limit of -40°C versus -30°C. These improvements do not compromise functional compatibility for applications requiring the specified 0.05A @ 12VDC contact rating and SPST-NO circuit configuration.

Frequently Asked Questions (FAQ)

Q: Can the TL3780AF240QG directly replace the TL3750AF100QG in existing designs?

A: Yes. Both components share identical circuit configuration (SPST-NO), contact rating (0.05A @ 12VDC), mounting type (Surface Mount), outline dimensions (3.00mm x 2.00mm), and switch travel (0.13mm). PCB footprints and electrical performance are compatible.

Q: What is the difference in operating force between these parts?

A: The TL3750AF100QG requires 100gf actuation force, while the TL3780AF240QG requires 240gf. This difference affects user interface feel but does not impact electrical functionality or circuit compatibility.

Q: Are there packaging differences between the main part and substitute?

A: The TL3750AF100QG is supplied in standard packaging, while the TL3780AF240QG is supplied in Tape & Reel (TR) format. Both are suitable for automated assembly processes.

Q: Why is the TL3750AF100QG obsolete?

A: Product obsolescence is determined by the manufacturer. The TL3780AF240QG represents the active production alternative within the E-Switch tactile switch portfolio.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the TL3750AF100QG and TL3780AF240QG are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8536.50.9031.