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With the vigorous development of the automobile industry, the original mechanical car has become an intelligent running robot with a soul, which has correspondingly promoted the development of the automotive electronics industry and has become a current hot field. As we all know, no matter what product, safety is always the first priority, especially the car, which is related to the safety of yourself and your family. Various circuit protection measures in the car are slightly improper, such as partial functional failure or the death of the car, there is a high probability of an accident. In the field of increasingly intelligent and integrated new energy vehicles, electrostatic protection diodes are very important for the protection of automotive circuits.

Various electronic circuits and precision components in the car, no matter where they are in the car, are vulnerable to sudden electrical transients. Here are some particularly common car protection lines:

1. Traditional communication bus: that is, CAN/LIN, they are a two-wire communication bus suitable for automotive internal control and monitoring functions, and the transient shock exposed will cause the CAN/LIN transceiver to fail.

2. Power bus: In transient protection, it includes electrostatic diodes embedded in modules and high-impact TVS diodes, which can handle vehicle load dumping;

3. High-frequency antenna for communication/broadcast reception: Because the front end of the RF amplifier is very sensitive to static electricity, it is necessary to use a bidirectional, low-capacitance electrostatic protection diode.

4. SIM slot: In order to accept the influence of human-computer interaction, electrostatic diode protection is required.

At present, automotive circuit protection components are not limited to fuses, but also electrostatic protection diodes, TVS diodes, and varistors. The overvoltage protection of electrostatic diodes is also worthy of attention. You must know that in automotive electronics, all electronic devices are faced with the threat of electrostatic discharge and car parabola. Therefore, overvoltage protection is very important for automotive electronics. Therefore, when car manufacturers purchase electrostatic diodes, they must find qualified manufacturers. If they are replaced with inferior products, it is likely to cause great loss of corporate image.

We take the automotive electronic electrostatic protection scheme as an example. Because of the need for buttons and USB interfaces, the testing standards are constantly being updated and updated. ISO has also increased the requirements for special testing of vehicles. Without a reliable circuit protection device, it is impossible to To meet this requirement, those car manufacturers must find qualified manufacturers when purchasing electrostatic diodes. If they replace them with inferior products, it is likely to cause great loss of corporate image.