TR04H103 is a tact switch from C&K Components. It is a single-pole, double-throw (SPDT) switch, with a 4.95 mm square actuator, a height of 4.4 mm, and a maximum rated current of 50 mA at 12 volts DC. The switch features a snap-acting mechanism for a positive click when pressed and a tactile feedback for user confirmation. It has an IP67 rating for dust-tight and water-resistant operation, and is made from nickel-plated brass and plastic components.