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2025.12.08

What is a rocker switch?

A rocker switch is a common electronic component used to control the on/off state of a circuit. The switch gets its name from its shape, which resembles a seesaw.

 

Structure of rocker switch

A rocker switch consists of several parts, including an actuating rod, a lever, and a mounting bracket. The rod has several contacts, and the on/off state of the contacts can be adjusted by moving the lever.

 

Working principle of rocker switch

A rocker switch controls the flow of a circuit by controlling the open and closed states of its contacts. When the rocker switch is in the closed state, the contacts are open, and the flow of current in the circuit is impeded. When the rocker switch is in the open state, the contacts are closed, and the current in the circuit can flow smoothly.

 

Application scenarios of rocker switches

Rocker switches are widely used in various electronic circuits, such as power switches, light switches, and motor controls, and are an important component for controlling electrical appliances.

In addition, rocker switches can also be used for positioning, angle adjustment, and direction control, such as controlling the position of control surfaces and wings in RC models.

 

Classification of rocker switches

Rocker switches can be categorized into various types based on their specific structure and operation, such as single-pole single-throw (SPST), double-pole single-throw (DPST), and single-pole double-throw (SPDT). Among these, the single-pole single-throw (SPST) is the simplest, controlling only one circuit, while the double-pole double-throw (DPDT) can control two different circuits, facilitating control in various scenarios.

 

in conclusion

Rocker switches are a common electronic component widely used in various circuits. They can conveniently achieve switching control and direction control. Familiarity with their structure, working principle, and classification is helpful for circuit design and maintenance.

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