The SMBG28CAHE3/5B is a transient voltage suppressor (TVS) diode from Vishay General Semiconductor. It is a bidirectional device, meaning that it can protect against both positive and negative voltage transients. The SMBG28CAHE3/5B has a standoff voltage of 28V, a breakdown voltage of 31.1V, and a clamping voltage of 45.4V at a peak pulse current of 13.2A. It has a peak pulse power of 600W.

The SMBG28CAHE3/5B is packaged in a DO-215AA surface mount package. It is AEC-Q101 qualified, meaning that it is suitable for use in automotive applications.

Applications

The SMBG28CAHE3/5B can be used to protect a wide variety of electronic circuits from transient voltage spikes. Some typical applications include:

• Automotive electronics
• Industrial electronics
• Telecommunications equipment
• Consumer electronics
• Power supplies

Features and Benefits

• Bidirectional protection against positive and negative voltage transients
• High peak pulse current capability
• AEC-Q101 qualified for automotive applications
• Surface mount package for easy assembly

How it Works

TVS diodes work by absorbing the energy of a voltage transient and dissipating it as heat. The SMBG28CAHE3/5B has a low clamping voltage, which means that it will limit the voltage that reaches the protected circuit to a safe level.

Typical Use Cases

• Protecting automotive electronics from voltage spikes caused by lightning strikes or load switching
• Protecting industrial electronics from voltage spikes caused by motor control or switching power supplies
• Protecting telecommunications equipment from voltage spikes caused by lightning strikes or power line disturbances
• Protecting consumer electronics from voltage spikes caused by power outages or surges
• Protecting power supplies from voltage spikes caused by lightning strikes or load switching

Conclusion

The SMBG28CAHE3/5B is a versatile and reliable TVS diode that can be used to protect a wide variety of electronic circuits from transient voltage spikes. It is AEC-Q101 qualified for automotive applications and is available in a surface mount package for easy assembly.