51CPT30-01C03N

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Rotary Switches

Rotary switches are used to select between multiple electrical circuits. The switch is usually composed of a movable contact arm or vane, which rotates or “rocks”, operating different contact points on its journey.

One of the advantages of rotary switches is the number of contact points it can provide versus the number of physical poles on the switch. Depending on the contact path adopted, it is possible to obtain more than one on-off state per pole.

51CPT30-01C03N application field and working principle

The 51CPT30-01C03N switch developed by C&K is a high-performance miniaturised 3-position rotary toggle switch. It is ideal for power switching applications that require low contact resistance and robustness in a compact package.

The 51CPT30-01C03N is typically used in power switching applications such as notebook PCs, smartphones, home medical equipment and white goods. Its long-lasting and reliable performance makes it an excellent choice for industrial applications such as switching transformers, switchers, chargers and power supplies.

The working principle of the 51CPT30-01C03N is as follows. When the switch is in the off position, the rocker arm is in the stable 0° position, and the two contact points are at 0° and 90°. When the switch is in the first position, the rocker arm is in the 90° position, and the contact points are at 90° and 180°. When the switch is in the second position, the rocker arm moves to the 180° position, and the contact points are at 180° and 0°.

The 51CPT30-01C03N has a high-performance contact at ON/OFF positions offering a stable 1mΩ maximum contact resistance. It also has high contact durability up to 10,000 cycles and is rated for up to 2A at 24 VDC for power switching applications.

The 51CPT30-01C03N is certified to both UL and VDE safety standards, and is available in a variety of colour and termination options - including surface-mounted and through-hole configurations, making it suitable for a wide range of applications.

In summary, the 51CPT30-01C03N is a high-performance, miniaturized rotary switch, ideal for power switching applications that require reliability, robustness and low contact resistance. It is certified to both UL and VDE safety standards, and is available in a variety of colour and termination options - making it a great choice for industrial and consumer applications.

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