ITA25B1RL Circuit Protection

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Transient voltage suppressors (TVS) are a kind of diode that has an avalanche breakdown region. In the breakdown region, a greatly increased current can travel through the diode in a surprisingly short amount of time. This occurs when the breakdown voltage of the diode is in a forward bias mode. The avalanche breakdown, regulates the current that is travelling through the diode, thus protecting sensitive electronics from overvoltage conditions.

ITA25B1RL is an avalanche diode which functions as a transient voltage suppressor (TVS). It is part of a series of TVS diodes manufactured by Littelfuse. The ITA25B1RL is specifically designed to provide protection against voltage transients resulting from lightning, electrostatic discharge (ESD) and power line disturbances. This diode will absorb and limit the transients that would otherwise cause hazardous and unwanted electrical surges.

The ITA25B1RL is constructed with a hermetic TO-208AA 3-pin surface-mount package. The package offers optimized thermal performance, minimal stress and fast response time. It features a maximum working voltage of 25 V and a breakdown voltage of 17 V. Its power dissipation is 570 W, while peak pulse current is rated at 28 A. The ITA25B1RL is also available with optional electrostatic discharge protection (ESD) to protect sensitive components from static electric fields that could cause permanent damage.

The ITA25B1RL is suitable for a wide range of applications, such as electronic communication systems, industrial, automotive, renewable energy and consumer electronics. It is often used in projects to protect signal lines, control circuits, antenna systems, alarm systems, power supplies, automotive electronics and other high-voltage applications. The ITA25B1RL is also suitable for RF (radio frequency) applications up to 18 GHz.

The working principle of ITA25B1RL is based on avalanche breakdown. Avalanche breakdown occurs when a diode is forward biased and the current flowing through it causes an electric field to increase to the point where it overcomes the insulation between the semiconductor atoms. When this occurs, a large number of electrons and holes can flow freely, thereby producing an increased current in a very short amount of time. This large current flow dissipates the transient voltage, allowing the ITA25B1RL to protect the circuit from damage due to overvoltage.

In conclusion, ITA25B1RL is a TVS diode designed to protect components from overvoltage conditions. It offers robust protection against transient voltage surges such as those caused by lightning, ESD, power line disturbances, and even RF signals. ITA25B1RL is suitable for a wide range of applications including electronic communication systems, industrial, automotive, renewable energy and consumer electronics. It is constructed with a hermetic TO-208AA 3-pin surface-mount package which enables efficient and reliable operation in any environment. The working principle of ITA25B1RL is based on avalanche breakdown which facilitates fast response time.

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