BZT03D120-TR Circuit Protection

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TVS – Diodes are a type of semiconductor device, generally used to protect electrical systems or devices from electrical transients and over-voltage. BZT03D120-TR belongs to this family and can offer excellent protection of medium voltage applications. These are transient voltage suppressors specially designed for applications on AC/DC systems.

BZT03D120-TR is an avalanche diode with a series-connected RC element for fast clamping response and is used mainly in medium voltage applications. It is very effective against over-voltage transients and surge current up to 4500A. It has a high ESD performance and it works well in high capacitance load environments.

The BZT03D120-TR device has an operating voltage of 350V coating a peak pulse power of up to 1750Watts. It comes with solderable terminals for easy installation. Moreover, it is RoHS compatible and offers temperature stability even in adverse temperature conditions.

BZT03D120-TR has a wide application field and it is specifically designed for ESD protection in consumer electronics, such as PCs, DVD players, IP apparatus and mobile phones. It is also very suitable to protect electronic equipment from over-voltage electrical transients and surge current up to 4500A, making it ideal for use in power supplies, automotive batteries and telecommunications systems.

The working principle of the BZT03D120-TR is based on avalanche breakdown. When an electrical current exceeds the device’s breakdown voltage, it triggers an avalanche breakdown. This avalanche breakdown causes the device to rapidly switch from its off-state, conducive to its on-state, suppressing any further increase in voltage. This process is known as clamping and it offers protection from over-voltage transients or surge current.

The device is designed to operate in extreme temperature conditions and has a high thermal resistance. It can operate over a wide temperature range from -40°C to 120°C and its high breakdown voltage provides superior over-voltage protection. The BZT03D120-TR is also designed with a series-connected RC element that reduces peak pulse current and minimizes the peak pulse voltage.

In conclusion, the BZT03D120-TR is a very effective surge protect device that is designed for use in medium voltage applications. It has an operating voltage of 350V and its fast clamping response is achieved through its series-connected RC element. It is highly resistant to high capacitance load environments and has a high ESD performance. Lastly, this device is suitable for a broad range of consumer electronics and telecommunications systems, making it a valuable addition to any medium voltage application.

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