For hobbyists working with electronic projects, particularly small ones involving fitting parts of a circuit on a breadboard or a printed circuit board, the switch is essential. It helps control the operation of these projects, whether during testing or while using them. They're vital for building proof-of-concept circuits and prototyping electronics, such as with Arduino. Obtaining quality switches can make prototyping and project assembly fun and productive. Here follows some guidance for selecting the right slide switches for a project.
Sizes and measurements
These tiny switches are usually intended to go onto a printed circuit board or prototyping board with holes in it that the switch can be mounted on. While designing and drawing out the circuit, the switch's size must be kept in mind--or switches of an appropriate size have to be selected. Most electronic component switches are tiny, around 1cm in length, or even smaller. Ensure that the switch's toggle isn't so large relative to the sliding area that its state cannot be easily seen.
The pins on a switch are also essential to consider. Some are designed to fit neatly into a breadboard, while others are designed to be soldered into a PCB (and may have solder lugs to help). Slide switches with thinner pins are better for breadboards.
Pins and positions
While most hobbyist slide switches come with three pins on the bottom, they can have as many as twelve, included to ease installation and soldering. Depending on the application, the hobbyist must choose whether to use a single pole double throw (SPDT) switch or a double pole double throw (DPDT) switch. SPDT switches have one input and can choose between two outputs; DPDT switches have two inputs and four outputs, each input with two corresponding outputs. The most appropriate switch for the circuit depends on its position and the positions of other components.
An upper limit
Most slide switches sold for hobbyists' projects are rated for 50V DC, 0.5A, a limit that should accommodate most small models and prototyping boards such as Arduino and Raspberry Pi. They should also check the other electrical and technical specifications of the switches they plan to purchase, particularly if they intend to use it in repairs. A mismatch can damage the electric parts of the original device.
Categories Simillar to Slide Switches includes Current Switches, DIP Switches and Pushbutton Switches