2N685

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

Thyristors - SCRs form one of the main building blocks of power electronics, and the 2N685 is one of the most commonly used type of SCRs. An SCR is essentially a switch, with two important differences from a normal switch – it can be opened or closed with a voltage instead of an electrical current, and it can also hold a current when activated, making it ideal for use in high voltage applications such as motor speed control and lightning protection.

The 2N685 SCR is a four-layer symmetrically arranged device, with an emitter, base and collector as shown in the schematic. Its most important feature is its high forward blocking voltage – typically 16 V to 630 V – and its very low reverse blocking voltage – typically 0.5 V. This makes it suitable for use in applications such as AC or DC motor speed control, power switching, and even fast switching environments.

The 2N685 is often used in applications where high power, high reliability and low cost are important. The most common application for this type of SCR is motor speed control. In this type of application, the SCR is used to control the voltage to the motor, allowing for a variable speed regardless of the load on the motor. This is achieved because the SCR can switch on and off with a voltage, and can hold a current after it has been activated. This makes it ideal for use in high voltage applications such as motor speed control, lightning protection and even in fast switching environments.

The working principle of the 2N685 is quite simple. When an SCR is triggered by a gate voltage, it allows current to flow from the emitter to the collector, while holding the current even after the gate voltage is removed. This is because the device has a high forward blocking voltage and a very low reverse blocking voltage. In motor speed control applications, this allows the motor to be controlled with a variable speed regardless of the load on the motor.

The 2N685 is also used in applications such as auxiliary power supplies, AC and DC motors and even for use as an electronic switch for lighting. Other applications for the 2N685 include waveform generation, battery chargers, solar panel controllers, HVAC controllers and more. In these applications, the 2N685 is often used to amplify or switch electrical signals or current.

The 2N685 has been used in a variety of applications since its introduction, and is continuing to be used for many more. This versatile SCR offers low cost and high reliability for a variety of applications, and is a great addition to any power control circuit.

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