SMA5J6.0HE3/61

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TVS diode is a kind of overvoltage protection device which can suppress surge current and electrostatic ESD, and is widely used in automotive, communication and other industries. The SMA5J6.0HE3/61 is a common TVS diode, so it is necessary to know its application field and working principle.

Application Field

SMA5J6.0HE3/61 is usually used for over-voltage protection of automotive, communication and other electronic equipment, and has the characteristics of low capacitance, low holding voltage and fast response. It has a wide working voltage range, which can meet the requirements of different automotive electronic circuit designs.

The SMA5J6.0HE3/61 is a three-line diode, with the center line being the anode. Its holding peak current is 6.0A, and its working peak current is 12.0A. The reverse breakdown voltage of the center line is 6.0V. The maximum operating voltaage is 5.9V, and the clamping voltaage is 9.7V. It adopts SMC package with very small size, so it can be installed in limited space.

Working Principle

The SMA5J6.0HE3/61 is a unidirectional device, which means that it can only conduct current in one direction. When the device detects a surge voltage, it quickly switches from cut-off state to conduction state, thus limiting the voltage of the downstream circuit. The working principle of SMA5J6.0HE3/61 is similar to that of the traditional Zener diode, but the response speed of TVS diode is much faster than that of Zener diode.

When an over-voltage is applied to the SMA5J6.0HE3/61, the device begins to conduct current at a certain voltage. At this time, the current flows through the device and goes to the ground, and the voltage of the downstream circuit is clamped at the reverse breakdown voltage. After the voltage drops below the reverse breakdown voltage, the device will return to cut-off state, and the circuit will work in normal condition.

TVS diodes have the advantages of small size, fast response, good surge current protection ability and low power consumption. The SMA5J6.0HE3/61 is widely used in automotive and communication circuit protection due to its superior performance. It has the advantages of high surge current rating, stable electrical parameters and reliable performance, so it can ensure the normal operation of electronic equipment.

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