TL9320 Tact Switch E-Switch TL9320 Tact Switch features a 16VDC contact rating, >,100mΩ contact resistance, and 500,000 cycles of operation life. The TL9320 series offers an IP67 moisture protection, reduced 8.4mm x 8.4mm footprint, and SPST contact arrangement. E-Switch TL9320 Tact Switch is ideal for instrumentation, telecom, fitness, audio, visual, and medical applications.