TPC27AHM3_A/I Circuit Protection

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TVS - Diodes are one of the most important electronic components and play a key role in protecting electronic devices against transient voltage spikes and surges. The TPC27AHM3_A/I from NXP Semiconductors is a perfect example of a TVS protection component, which is designed for wide range of industrial, automotive, and embedded applications. This article will explain the application fields of TPC27AHM3_A/I, as well as its working principle.

The TPC27AHM3_A/I is an advanced TVS diode that is designed specifically to protect a wide range of industrial, automotive, and embedded applications from transient voltage surge and spikes. This component is suitable for use in applications such as medical equipment, handheld devices, power supplies, industrial automation equipment, PLCs, and motor control systems. It is also suited for automotive applications such as engine control, powertrain control, and airbag systems.

The TPC27AHM3_A/I offers robust protection solutions against overvoltage and mixed mode transients. This component has an ultra-low leakage current which makes it well suited for low leakage current applications. It also offers a fast response time and excellent clamping performance together with low capacitance. The TPC27AHM3_A/I is available in leadless package sizes (1.5x1.5mm and 2x2mm) which makes it suitable for space-constrained applications, and its small footprint makes it easy to implement in high density boards.

The TPC27AHM3_A/I offers robust ESD protection according to IEC61000-4-2 standard up to ±15kV contact and ±8kV air discharge. This component also offers EFT (Electrical Fast Transient) protection according to IEC61000-4-4 standard up to 60A (5/50ns) and surge protection up to 1kA (8/20μs). Its overvoltage protection capability is designed to withstand voltage spikes up to 16V.

The working principle of TPC27AHM3_A/I is quite simple. In the presence of overvoltage, it will quickly reduce the voltage level to a safe value. This is done by clamping the voltage across the diode at a safe level, thus protecting the surrounding electronics from the overvoltage. The clamping voltage is determined by the device’s breakdown voltage. When the voltage returns to normal, the current will cease and the diode will become an open circuit.

In conclusion, the TPC27AHM3_A/I from NXP Semiconductor is an excellent TVS protection component that is designed for a wide range of industrial, automotive, and embedded applications. It offers robust protection against overvoltage and mixed mode transients. Its working principle is simple, relying on the breakdown voltage of the device to safely reduce transient voltages. Its small size and low leakage current makes it well suited for high density board designs and low leakage current applications.

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