SMCJ11A-HR

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The SMCJ11A-HR is a diode used for Transient Voltage Suppression (TVS). It is a bi-directional device and provides overvoltage protection for electrical equipment against spikes in the AC power distribution line. The SMCJ11A-HR is designed for an operating voltage of 11 Volts, with a maximum peak pulse power of 1280 Watts. The device is designed to limit the maximum overvoltage transient enabled in the application.

Features

The SMCJ11A-HR is designed to provide overvoltage protection up to 11 Volts. It is designed to block voltage transients up to 8.3 kV transient discharges. It features an ultra-low capacitance of 0.7pF, low clamping voltage of 16.5V, and low leakage current of 500nA. Its operating temperature range is from -55°C to 125°C, and it has a low thermal resistance of 59°C/W. It also has an extremely fast response time of less than 1.0 ns.

Advantages

The SMCJ11A-HR is designed to provide superior protection for a variety of electro-mechanical, digital, and analog circuits. As a result, its use decreases the risk of field failures, improves the reliability of the equipment, and reduces the system downtime due to transient overvoltage. It also offers high peak pulse power capabilities, low capacitance, low leakage current, fast response time, and an extended temperature range of -55°C to 125°C.

Applicaiton Fields

The SMCJ11A-HR is ideal for overvoltage protection in a wide range of applications, including telecommunications, consumer electronics, industrial and medical electronics, automotive electronics, computer and peripherals, and general purpose circuits. It can be used in a variety of AC lines, including AC industrial and residential lines. In addition, it can be used in DC applications with high switching frequency, such as DC-DC converters and isolated supplies.

Working Principles

The SMCJ11A-HR is designed to protect against transient overvoltage by suppressing the current flow within a device. When an excess voltage is detected, the device conducts and passes the current through it, thus providing a protective layer between the equipment and the overvoltage. The device utilizes avalanche breakdown behavior, which works by allowing the charged carriers to build up and then suddenly collapse when a critical level is reached. This breakdown of the semiconductor junction creates a short-circuit current that helps to reduce the overvoltage.

The SMCJ11A-HR is designed to offer robust, reliable protection from overvoltage transients. The device features an ultra-low capacitance of 0.7pF, low clamping voltage of 16.5V, and a low leakage current of 500nA. Its fast response time allows it to respond quickly and provide the necessary protection required. This makes the device ideal for a variety of applications with varying electrical specifications.

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