SMAJ43AE3/TR13

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TVS (Transient Voltage Suppressor) diodes are semiconductor devices designed to protect electrical circuits from damage due to excess voltage such as electrostatic discharges (ESD) or transient voltage faults. The SMAJ43AE3/TR13 is a unidirectional TVS diode used to protect sensitive components from electrostatic discharges (ESD), which can be generated by humans and electronics. It provides up to 43V of protection against ESD voltage, with a low clamping voltage of 13.7V.

These types of diodes are widely used in automotive applications, such as for data-line protection, as the surge current rating is high enough and they are designed to withstand a wide temperature range. They are also used in consumer electronics, including computer peripherals, automotive systems, and industrial applications.

The SMAJ43AE3/TR13 is a single-line TVS diode, which means it is designed to protect only a single line of a circuit. It has a typical breakdown voltage (Vbr) of 43V with a µA Ipp (peak pulse current). It is available in a SOT-23 surface mount package, making it suitable for high-density printed circuit boards.

The working principle of a TVS diode is simple. The diode is connected in parallel to the circuit, so the current passing through the diode is limited only by the intrinsic impedance of the protection component. When the voltage reaches the breakdown voltage of the diode, the diode will become conductive, resulting in a surge of current. This current rapidly dissipates the excess voltage across the TVS diode. With the surge current dissipated, the diode returns to its blocking mode.

The SMAJ43AE3/TR13 is designed to protect sensitive components from electrostatic discharges (ESD), which can be generated by humans and electronics, or during handling and installation. It protects the circuit by absorbing the high voltage and quickly discharging it in order to protects the circuit. It is rated to protect up to 43V and has a low clamp voltage of 13.7V.

The SMAJ43AE3/TR13 is a widely used TVS diode and is suitable for a variety of applications, including automotive, consumer electronics, and industrial systems. It provides efficient protection against electrostatic discharges and offers a wide operating temperature range. Its low clamping voltage combined with its small size makes it ideal for high-density applications.

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