PESD12VS1UB,115 Circuit Protection

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Transient Voltage Suppression (TVS) diodes, also known as Transient Voltage Suppressors (TVSs), are electronics components used to protect sensitive electrical equipment from exposure to transient voltage spikes. The PESD12VS1UB,115 is a unidirectional TVS diode used in the protection of motor control and logic circuits from transient voltage events. An understanding of its application fields and working principle can help users determine how to best use the device.

Application Field

The PESD12VS1UB,115 is most commonly used in motor control and logic circuit protection. The diode features a majority carrier conduction, high surge capability, and low-clamping voltage. This makes it suitable for applications such as Automotive, Industrial Control, HVAC, and Consumer Electronics. The device can also be used for thermal protection in high power converters, as well as for overvoltage protection in low voltage equipment.

Working Principle

The working principle behind the PESD12VS1UB,115 diode is simple. It is designed to clamp down the voltage of a circuit to protect it from transient events. The diode works by limiting the amount of voltage that can flow through the circuit. It does this by diverting the current through a path of low resistance, known as the “clamp”. The device also regulates the amount of energy that is transferred from the main circuit, while also suppressing any electric noise.

When the external voltage reaches the diode’s breakdown voltage level, it begins to conduct and thus provide protection from the transient surge. As the external voltage increases, the diode’s current also increases, which leads to a higher voltage drop across the diode. This ultimately limits the amount of voltage that can flow through the circuit and thus provides a form of surge protection.

Conclusion

The PESD12VS1UB,115 is a unidirectional TVS diode suitable for applications such as motor control and logic circuit protection. It features a majority carrier conduction, high surge capability, and low-clamping voltage. The device works on the principle of clamping down the voltage of an electric circuit and regulating the amount of energy that is transferred from the main circuit. With an understanding of its application field and working principles, users can best determine how to use the PESD12VS1UB,115 for their specific needs.

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