PESD15VS2UATVL Circuit Protection

TVS (Transient Voltage Suppressor - also called surge protection diodes) are specialized devices designed for protection of other components from transient over voltage (also called ‘spikes’). They have become increasingly important over the years in many industrial and commercial applications, especially in power-line or signal line protection. Many of these applications involve the PESD15VS2UATVL TVS diode, which is a popular choice in such situations. This article will explain the application field and working of the PESD15VS2UATVL.

The PESD15VS2UATVL is a unidirectional, two-lead, 15-volt, uni-directional TVS with an operating temperature range of -55°C to 125°C and a storage temperature range of -65°C to 150°C. It is designed to protect against transient overvoltage (spikes) such as electrostatic discharge (ESD) or voltage transients in computer, telecommunications, automotive and consumer electronics market applications.

It is used in applications ranging from signal line protection from high voltage switching of transistors and other components to providing isolation between low voltage signals and datasheets. Its ability to handle high power surges means it can easily be used in applications that require both high surge current and high power protection, such as electronic voltage regulators or power supply designs.

The PESD15VS2UATVL has a low forward voltage of typically 0.7V and a low reverse voltage of typically 6.5V. It is also able to withstand high surge currents up to 350A (for 8/20 μs) and is capable of withstanding up to 1200A (for 8/20 μs). It has a dead short recovery time of typically 50μs and is relatively robust against electrostatic discharge (up to 15kV) and other transient overvoltages.

The operation of the PESD15VS2UATVL is very simple. During normal operation the diode acts as an open circuit, allowing current to flow through it in only one direction. When a voltage spike, or transient overvoltage, travels along the line the diode will enter a state of high conduction, limiting the magnitude of the voltage spike to a safe level. Once the voltage spike has passed, the diode will return to its open circuit state, allowing current to flow through the line once more.

The PESD15VS2UATVL is an ideal solution for many applications and provides a very reliable and efficient protection from transient overvoltages. Thanks to its low forward voltage and low reverse voltage, it can easily be used in many applications requiring high power protection. Its high surge current and dead short recovery time make it suitable even for the most challenging conditions. It is also highly robust against electrostatic discharge and other transient overvoltages, making it ideal for sensitive electronics applications.