A PCB switch is a switch that is directly mounted onto a PCB (Printed Circuit Board). Surface mount PCB switches (SMD/SMT) are designed to sit flat, directly on top of a PCB. Through-hole or ‘thru-hole’ PCB switches are inserted into a drilled hole on the printed circuit boards and soldered to pads on the opposite side.
See our range of PCB electromechanical components. We have further divided our products int sub-categorised to help easily find the electromechanical components. Consisting of low profile Pushbutton Switches, LED Tactile Switches, Non-Illuminated Tact Switches, Pots, Encoders & Knobs, Relays, Toggles, DIP, Slide & Rotary Switches.
Poles and Throws
SPST (Single-pole, single-throw) switch has only got one output and one input.
SPDT (Single-pole, double-throw) switches have three terminals, one common pin and two pins which contend for connection to the common. Most suited to devices selecting between two power sources.
DPDT (Double-pole, double-throw) switches are essentially two SPDT switches that control two separate circuits and are switched together by one single actuator.
Momentary or Latching function
A momentary switch only works when there is force pressing the button, once this force is removed the switch is no longer engaged. A latching switch maintains the state once pressed, until the push button is pressed again to release the switch.
LED Illumination Options
RJS supplies both non-illuminated and illuminated push switches. Choosing what type will depend on the function and design of your product. There is a wide range of LED illumination options including single, bi-colour, dual colour or RGB LED illumination. How the illumination is displayed also varies. Variations include;
•Ring illumination •Dot illumination
•Custom text/symbol illumination •Full illumination
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