TP1.5KE39A

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Introduction to TVS - Diodes

TVS diodes are surge protection devices that protect sensitive electronic equipment from electrical transients. A TVS (transient voltage suppressor) diode is a semiconductor junction diode which is designed to absorb voltage transients in a direct, low impedance path and thus prevent overvoltage stress to the device. These diodes are designed to protect sensitive electronic components from damage due to overvoltage transients caused by electrostatic discharge (ESD), inductive switching, lightning, and other sources. TVS diodes are used to limit voltages to a safe operating level in a wide variety of electronic circuits.

TP1.5KE39A Application Field and Working Principle

The TP1.5KE39A diode is a cutting edge, ultra fast, low-capacitance TVS diode designed for ESD and EFT protection. It is ideal for use in applications such as USB port protection, power supplies and many other high-speed applications which require high surge tolerance. The TP1.5KE39A can handle up to 1500W of peak pulse power, and its low capacitance keeps the interface between the I/O components and the USB port smooth and noise free.

TP1.5KE39A is designed to suppress ESD, EFT and lightning surge voltages up to ±30kV contact discharge and ±40kV air discharge. It is designed to limit peak voltages to less than 35V and provide an ultra fast response time of 5-15ns. The maximum breakdown voltage is 39V. The device is designed to clamp the voltage and limit current, so the maximum instantaneous power dissipation at any voltage is also limited.

The TP1.5KE39A comes in a SOT-223 package, so it can be easily integrated into any circuit board. It requires minimum assembly pins for connection so it can save space on the board. The diode also provides a built-in thermal shutdown circuit which limits the device temperature above 150°C.

Conclusion

TP1.5KE39A is an ultra fast, low-capacitance TVS diode that is ideal for ESD and EFT protection, particularly in applications such as USB port protection, power supplies and many other high-speed applications. Featuring high surge tolerance, ultra fast response time, low capacitance and a built-in thermal shutdown circuit, TP1.5KE39A provides the best-in-class protection for sensitive electronic components.

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