Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

TVS - Diodes

TVS diodes are a form of zener and transient voltage suppression diode element, designed to protect sensitive electrical components from electrostatic discharge (ESD) related transients. The 3SMC43A TR13 unidirectional diode is specifically designed for 12V transients, up to an 8/20μs surge rating of 17A. It features a peak power dissipation of 43W (2.8W at 10/1000μs) and is certified to UL 1449 4th edition.

Application field and working principle

The 3SMC43A TR13 offers peak power dissipation of 43W, making it suitable for automotive and industrial applications where a surge protection device up to 12V is needed. Its fast response time and thermally conformal packaging make it especially useful in applications involving motor control and switch mode power supplies.TVS diodes protect connected circuits by suppressing the large voltage spikes that occur due to over voltages, ESDs or electrostatic discharges. When a voltage spike occurs, the TVS diode reduces the overvoltage transient by conducting current to ground, clamping the voltage to a safe level. As a result, the device prevents damage to the sensitive circuits that it is connected to.

During normal operation, the diode is reverse biased, with the voltage drop across it being negligible. However, when a sharp rise in voltage is detected, the diode acts as a short circuit, passing large currents to ground which prevents the voltage from rising further. The diode is designed with a special breakdown voltage such that it will not conduct current during normal operation, and will act as a short circuit only when the voltage exceeds the breakdown voltage.

The 3SMC43A TR13 diode is also designed to dissipate high levels of energy while keeping within a thermally conformal package. This helps to reduce the possibility of failure due to overheating. An ESD rating of 17A and peak power dissipation of 43W makes the 3SMC43A TR13 a reliable and cost-effective solution for spike and ESD suppression applications.

The specific data is subject to PDF, and the above content is for reference