U21MD9A3QE

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction to Toggle Switches: U21MD9A3QE

Toggle switches are a common component in many electronics and engineering applications, providing an easy-to-use, reliable means of switching circuits on and off. The U21MD9A3QE is an example of a toggle switch. It is a general-purpose, single-pole, double-throw (SPDT) toggle switch with an ON-OFF-ON configuration.

Application Field

The U21MD9A3QE is a versatile toggle switch which can be used in a variety of applications. It is particularly suited to applications where a tactile feedback switch is needed, as the toggle switch offers a reliable contact structure with a greater life span than other types of switches. It is commonly used in a variety of different applications, including:

• Motor Controls;
• Sound Systems;
• Lighting Controls;
• Process Automation;
• Robotics;
• Telecommunications;
• Industrial Controls;
• Aerospace Systems;
• Servo Motors.

Working Principle

The U21MD9A3QE consists of a latching switch mechanism which consists of two separate switch elements. The first switch element is the toggle switch element, which is operated by the switch body closing over the switch contacts. This causes the toggle switch element to move, opening or closing the electrical contacts, resulting in the switch being either open or closed. The second switch element is the latching mechanism, which is engaged when the toggle switch element moves. This mechanism locks the switch into the ON or OFF position, allowing it to remain in that state even when the switch is released. This makes the switch highly reliable in applications where an always-on or always-off position is required.

The U21MD9A3QE is constructed from sheet metal and corrosion-resistant materials, making it both durable and reliable. It is rated for a contact current of 10 A and a contact voltage of 250 V AC and DC. The switch also features a quick-make/quick-break contact structure, reducing contact bouncing and ensuring consistent operation.

Conclusion

The U21MD9A3QE is an versatile and reliable SPDT toggle switch, which is suited to a variety of applications that require a tactile feedback switch. It is constructed from corrosion-resistant materials and features a quick-make/quick-break contact structure, providing increased durability and reliability. It is rated for a contact current of 10 A and a contact voltage of 250 V AC and DC, making it suitable for many applications.

The specific data is subject to PDF, and the above content is for reference