Extra small robust and washable tact switches

01-08-2022 | Wurth | Connectors, Cables and Enclosures

Würth Elektronik offers another high-quality switch from the series of washable tact switches. The WS-TASV Tact Switch for SMT assembly is extremely space-saving, with a footprint of only 4.1mm x 2.8mm and a height of 1.9mm. Three variants are available, colour-coded according to their actuating force: 200g (black), 300g (white), and 400g (salmon). The tact switches are developed for an operating temperature range of -55C to +125C.

Tact switches provide reliability and long service life. All metallic parts of the switches are tested for corrosion resistance with a 48-hour salt spray test. Polyimide film shields the tact switch even under extreme operating conditions. High-quality snap domes constructed of stainless steel provide high reliability and reduced friction – tested in full-load lifecycle.

The rated current is 50mA, and rated voltage is 32V. The service life is between 100,000 and 200,000 cycles, depending on the operation force. The initial contact resistance is 100mOhm, and after-service life testing is 2-Ohm.

The company provides developers with free samples of the WS-TASV.

By Seb Springall