The number of electronic components used in the car is growing.Today's automobiles are developing in the direction of electronics, multimedia and intelligence.Not only as a transportation tool, but also with entertainment, office and communication and other functions.The continuous improvement of various functions in the car.There are more and more automobile electronic control units.The number and complexity of control devices are also increasing.The wiring harness also urgently needs a high level of protection for the power bus protection.Based on the market demand and TVS diode application, circuit protection expert Socay designed the following solution for automobile power bus protection.

Application background

1. Automotive ignition switches, relay contacts, alternators, fuel injectors, etc. generate electromagnetic interference, which directly affects the electronic modules in the car.

2 Automotive electronics must pass the I OS7637-2 power line application-related standards

Socay Solution and Electronics Components

TVS diode 

Part No.【SM5S18A】Vbr：20.0-22.1V；Ir：5mA；Vrwm：18.0V，Ipp：123.0A；Vc (V) :29.2 Package：DO-218AB

Part No.【SM5S36A】Vbr：40.0-44.2V；Ir：5mA；Vrwm：36.0V，Ipp：62.0A；Vc (V) :58.1 Package：DO-218AB

Part No.【SM8S18A】Vbr：20.0-22.1V；Ir：5mA；Vrwm：18.0V，Ipp：226..0A；Vc (V) :29.2 Package：DO-218AB

Part No.【SM8S36A】Vbr：40.0-44.2V；Ir：5mA；Vrwm：36.0V，Ipp：114.0A；Vc (V) :58.1 Package：DO-218AB

Applications

1.Car Navigation

2.Vehicle backup camera

3.Car dashboard

The Solution Note

1.The solution protects the electronic module from overvoltage with automotive TVS diodes

2. The solution provides an overvoltage protection solution for automotive electronics DC12V/24V power bus.

3. The solution can pass the five test conditions of I OS-7637-2 standard.

For more information about circuit protection solutions and electronics components, please directly contact online customer service at http://www.socay.com/