SMP22A-M3/85A Circuit Protection

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TVS diodes are designed to provide a variety of protection to electronic circuits, such as surges, spikes, and overvoltage. SMP22A-M3/85A is a kind of Transient Voltage Suppressor diode. It is designed to offer protection for equipment and components from voltage spikes that cause power-supply disturbance, EMI, or over voltage.

The SMP22A-M3/85A is designed for general purpose applications and can be widely used in DC circuit, automotive electronics equipment, industrial electronic equipment, computer, notebook, communication and so on. This type of diode is a unidirectional device with its electrode reversedly connected in series. It can protect electronic circuits from transient voltage overshoot

The SMP22A-M3/85A is composed of two independent sections, each with their own junction structure. The two sections are electrically connected through connections that lead to the anode and cathode contacts. It has an excellent avalanche breakdown voltage characteristic and a fast response time. It can offer fast protection from voltage surges and spikes. It also has a low capacitance and low-clamping voltage, ensuring the device is smaller and more compact in size.

The SMP22A-M3/85A also has a temperature compensation feature which is designed to protect the device from thermal runaway. This feature is designed to ensure that the device can remain steady even in high temperature applications where there is a large temperature variation. In addition, this device also has an insulation level of up to 3KV.

The working principle of SMP22A-M3/85A is based on the fact that it can absorb the transit load surge current and restrain voltage rises, so as to protect against the overvoltage. When a surge or spike occurs, the diode will provide a conductive path for the current. As the current passes through the device, the resistance increases with the increase in current. This causes a rise in the voltage across the diode junction, resulting in a decrease in the current. When the spike is gone, the device will return to its OFF state, thus protecting the circuit from a potential overvoltage.

The SMP22A-M3/85A is an excellent choice for protecting electronic components and equipment from voltage overshoots. It has an excellent clamping voltage, low capacitance and fast response time, making it suitable for a wide range of applications. Its temperature compensation feature helps prevent thermal runaway, while its insulation level of up to 3KV ensures that it is robust and reliable in high temperature applications. Its working principle makes it an ideal choice for transient voltage suppression.

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