Introducing TS7 Series SMD Type Illuminated Tact Switch

FVWIN has developed a new high-temperature material for the TS7 Series illuminated tact switch, addressing a common soldering limitation of its previous SMD version. With the updated material, the surface mount illuminated tact switch can now be processed through reflow soldering at temperatures up to 250°C, making it more suitable for automated PCB assembly and higher-volume production.

The TS7 Series is available in both through-hole and surface mount versions. It supports multiple LED color combinations, including red-blue, red-green, and RGB. A 10mm round cap is also available to match the switch and panel design.

Improved Heat Resistance for SMD Assembly

Before 2021, FVWIN's SMD illuminated tactile switch required manual soldering because the switch material could not withstand the temperature of a standard reflow soldering process. During manual soldering, the temperature had to be controlled below approximately 240°C to prevent deformation or melting of the switch body.

For manufacturers using automated SMT production lines, this created an additional assembly step and limited the efficiency of bulk PCB mounting.

After introducing the new high-temperature material, the TS7 SMD illuminated tact switch can withstand a reflow soldering process with the soldering temperature controlled up to 250°C. This change allows the switch to be integrated more easily into automated PCB assembly processes.

More Convenient for Bulk PCB Assembly

For low-volume production, manual soldering may still be practical. However, when hundreds or thousands of switches need to be mounted onto PCBs, manual soldering can increase assembly time and create additional process control requirements.

The updated TS7 SMD version is designed to work with reflow soldering, giving PCB manufacturers a more convenient option for bulk SMT assembly. It can be considered for electronic products where illuminated tactile switches need to be mounted together with other surface mount components.

Engineers should still confirm the actual reflow profile and temperature requirements of their PCB assembly process before production.

Multiple LED Color Options

The TS7 Series is designed as an illuminated momentary tactile switch and is available with several LED configurations. Current options include:

1. Red + Blue

2. Red + Green

3. RGB

A 10mm round cap is available for the TS7 Series, providing a larger operating surface and allowing the switch to be integrated into different control panel designs.

The combination of LED indication and tactile operation makes the series suitable for applications where users need both physical button feedback and visual status indication.

Through-Hole and Surface Mount Versions

The TS7 Series is available in both through-hole and SMD terminal configurations. This allows product designers to select the mounting style according to their existing PCB structure and assembly process.

For customers using automated SMT production, the updated SMD version can help reduce the need for manual soldering. For PCB designs using through-hole components, the through-hole version remains available as an alternative.

A Practical Update for Illuminated Tactile Switch Assembly

The main change to the TS7 SMD illuminated tact switch is the use of a new heat-resistant material that supports reflow soldering at temperatures up to 260°C. This improvement addresses the previous limitation of manual soldering and provides a more practical option for customers producing illuminated tactile switch assemblies in larger quantities.

For projects requiring SMD illuminated LED tact switches, FVWIN can provide TS7 Series options with different LED colors and mounting configurations. Other surface mount LED tactile switch solutions are also available according to PCB layout, button size, LED configuration, and assembly requirements.