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TVS - Diodes Overview

TVS diodes (Transient Voltage Suppressor) are common electronic components used for protecting circuits against high voltage transients. They are usually used in applications such as overvoltage protection, circuit isolation and various surge protection functions.

The SMBJ12AE3/TR13 is a type of TVS diode designed for overvoltage protection. It is a unidirectional device that allows current to flow in only one direction. This makes it especially suitable for applications that require protection from excessive voltages, such as motor control or power tools.

Application Field

The SMBJ12AE3/TR13 is designed for protection against high voltage transients. It can be used in several fields, including motor control, power tools, communications, and audio-video equipment.

The device offers reliable protection from high voltage spikes and surges by clamping the voltage to a safe level. This is especially useful in applications that involve electric motors, as these are vulnerable to high-voltage spikes that can cause system failure or component damage.

The SMBJ12AE3/TR13 can also be used to protect other types of sensitive equipment from excessive voltage. This includes audio-video equipment, telecommunications equipment, and other circuit components that are vulnerable to damage due to overvoltage.

Working Principle

The SMBJ12AE3/TR13 is designed to protect circuits from overvoltage by conducting the current away. When an overvoltage condition is detected, the device will allow current to pass through it and discharge the excess voltage. This helps to protect the connected circuit from damage due to excessive voltages.

The device also has an internal reverse bias design that prevents excessive current from flowing in the opposite direction. This ensures that the levels of current flowing in the circuit remain within safe limits and prevents further damage.

The SMBJ12AE3/TR13 also has an inbuilt self-healing function that allows the device to recover from extended period of overvoltage. This makes it ideal for long-term protection applications, as it can ensure the circuit remains protected even when subjected to repeated surges of excessive voltage.

Conclusion

The SMBJ12AE3/TR13 is a type of TVS diode designed for overvoltage protection. It is unidirectional device that provides reliable protection against high-voltage transients. It can be used in a range of applications, such as motor control, power tools, telecommunications, and audio-video equipment. The device also has an internal reverse bias design and a self-healing function, making it suitable for long-term protection applications.

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