SM15T39CA Circuit Protection

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The SM15T39CA TVS Diode is a 15.0 V Transient Voltage Suppressor, with very low clamping voltage and tight tolerance. It has a high current handling capacity and is suitable for effective protection of delicate devices.

The SM15T39CA can be used to protect sensitive electronic components, such as CMOS logic ICs, from transients caused by electrostatic discharge or transient overvoltages. It can also be used as a shunt clamp for cable protection and direct ESD protection.

The working principle of the SM15T39CA is based on the breakdown voltage of its substrate material. It is made from a semiconductor material such as silicon, and is engineered to have a specific breakdown voltage. When a sudden surge of voltage, which exceeds the pre-determined voltage of the device, is applied, the current flowing through the device does not exceed its rated value. It thus limits the surge current, clamping the supply voltage and protecting the connected device.

The SM15T39CA is particularly suitable for consumer electronics, automotive and industrial applications. It is suitable for directly dissipating up to 4.5kA peak current and has a maximum repetitive peak voltage up to 28V. Its fast response time of less than 1ns ensures that the protection is highly efficient. The device\'s working temperature range is -55°C to +150°C.

Unlike other TVS diodes, the SM15T39CA is optimized for use in automotive, port-powered, and medical applications. It is able to survive repetitive peak voltage up to 28V and is certified for use in safety-critical applications. It is also ideally suited for systems requiring a low leakage current and high temperature stability.

To make sure that the SM15T39CA can provide effective protection, it is important that the breakdown voltage is chosen carefully. The breakdown voltage of the device should match the clamping voltage of the application. Clamping voltage of most applications usually lies between 11V and 24V. It is also important to consider the thermal resistance and power dissipation of the device before making a selection.

Overall, the SM15T39CA Transient Voltage Suppressor is a reliable and cost-effective solution for preventing transient over-voltage. It has high current handling capacity, fast response time, and offers efficient protection against excess voltage and electrostatic discharge. Its low clamping voltage makes it suitable for a wide range of applications, making it a popular choice in consumer electronics, automotive, and industrial sectors.

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