SMTPA320 Circuit Protection

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, often called silicon-controlled rectifiers (SCRs), are components which allow the flow of current through them when triggered or initiated by an electrical control signal. The SMTPA320 is a type of Thyristor specifically designed to meet the requirements of power switching applications. It has a built-in surge suppression and a built-in thermal cutoff which makes it a highly reliable device in the protection of high voltage systems.

The SMTPA320 is available in a variety of packages including: TO-18, TO-220 andTO-358. It is a three-terminal thyristordevice with a gate input and two serially connectedanode-cathode regions or junctions. The device is capable of handling up to 320 amperes (at 200 volts) of continoustransient surge current. It has an avalanche breakdown voltage of 600V and an off-state voltage of 800V which makes it suitable for a wide range of power control applications.

The working principle of the SMTPA320 is simple yet effective. When the SCR is forward-biased, the gate current is switched on and current starts flowing in the SCR. It remains on until the gate current is switched off, either manually or through an external control. The device has the ability to resist over-temperature conditions and has a built-in thermal cutoff which will automatically shut off the SCR in aevent of overtemperature. This makes it an excellent device for power switching applications such as motor control and voltage regulation.

The SMTPA320 utilizes a three-terminal design which allows the device to be used in various circuits. The gate current is switched on and off through the gate terminal, while the anode-cathode junctions can be connected to different components, such as relays, resistors, diodes, etc. The built-in surge suppression also helps to minimize the risk of power surges, and to protect components from over-voltage or over-current conditions.

In summary, the SMTPA320 is an ideal device for power switching applications, as it offers excellent protection against power surges. It also has an effective thermal cutoff feature which helps to protect components from high temperatures. The three-terminal design also makes it easy to integrate into existing circuits, and it has a built-in surge suppression which helps to minimize the risks of over-voltage or over-current conditions.

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