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Rocker Switches

A D203J12S205NQA rocker switch belongs to a class of mechanical switches, which is characterized by the toggle-like rocker arm and the lever-like actuator, making it a popular choice for many applications. The rocker switch is available in many configurations and can have various contact types such as SPDT, DPDT, 3PDT and 4PDT. It is widely used in low to high voltage control circuits, switching lights, and engaging relays.

Application Fields

Rocker switches are used in many applications and can be found in industries such as automotive, HVAC, audio/visual, security and even medical. Some rocker switches are rated for up to 20 amps of current, high voltage and up to 300 volts AC. In terms of the applications, they are widely used in various products including household appliances, computers, consumer electronics, automotive controls and industrial controls.

Working Principles

Rocker switches work by the user pushing the rocker arm up or down. The push action snaps the switch into either its on or off position. This action causes the internal contacts to open and close, allowing the switch to control the flow of electricity. The contacts in the rocker switch can be either momentary or maintained contacts. Momentary contacts are spring-loaded, while maintained contacts stay in the open or closed position until they are manually reset by the user.

Rocker switches are available in various sizes and shapes. The most common type is a single-pole, single-throw (SPST) rocker switch. This type of rocker switch has two terminals: one for the common terminal and one for the other contact. The other available configurations are the single-pole, double-throw (SPDT) and double-pole single throw (DPST.) In a SPDT switch, the user can control two separate circuits with just one switch. Meanwhile, the DPST switch has four terminals and is used to control two separate circuits, but both circuits can be switched independently.

Rocker switches are available in many styles, colors and configurations, so it can be tailored to any application. They can be illuminated, have indicators or be designed to match the decor of any room. They are also available in waterproof, dustproof and shockproof models.

Rocker switches are reliable and economical, which makes them a versatile choice for any project. With their long life, smooth operation and dependable connections, they are an important part of many control systems.

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