SMBJ4754A/TR13

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Introduction

The SMBJ4754A/TR13 is a zener diode designed for ESD protection. It is a single zener diode and has a low clamp voltage making it suitable for various applications. It is designed to protect the sensitive devices from voltage spikes and provide stable power.

Applications

SMBJ4754A/TR13 is a general-purpose zener diode, offering ESD protection for various applications. It can be used in automotive electronics applications and medical devices. It can also be used in projects such as AC/DC power adapters, DC/DC converters, ITE and consumer electronics, telecom, and other applications where an ESD protection diode is needed.

It is ideal for use in applications where a low clamp voltage is required. It provides some non-linear voltage regulation, due to its zener characteristics, making it suitable for use in power supply applications as it can help to regulate the output voltage. It can also be used in solar cell applications as an over-voltage protection device.

Working Principle

The SMBJ4754A/TR13 applies to all “zener diode” (DZ) circuits, where a diode is used in reverse-biased mode to protect sensitive components from reverse voltages. When a certain zener voltage is reached, the zener region of the diode starts to conduct, resulting in a voltage drop across the diode, thus protecting the other components. This also provides a measure of voltage regulation.

In order for the zener diode to start conducting, the applied voltage needs to be higher than the zener voltage. The breakdown voltage of the SMBJ4754A/TR13 is 4.7V and it breaks at 5V. The current is limited only by the load resistance and the diode\'s maximum power dissipation. When the reverse voltage applied to the diode is high enough, the diode will start to conduct, and the current is limited by the load resistance.

Conclusion

The SMBJ4754A/TR13 is a single zener diode designed for ESD protection in various applications. It has low clamp voltage and can be used in AC/DC power adapters, DC/DC converters, ITE and consumer electronics, telecom, solar cell and medical applications. The diode works in reverse-biased mode and starts to conduct when a certain zener voltage is reached, thus providing a measure of voltage regulation.

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