1.5KA11AHE3/54

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TVS diodes, or transient voltage suppression diodes, are special types of semiconductor devices that provide surge protection from electrical overstress caused by transients such as power surges or lightning strikes. The 1.5KA11AHE3/54 device is a widely used surface mount TVS diode specifically designed to provide protection from transients up to 1.2kV. This small package is ideal for protecting sensitive electronics from damage caused by electrical transients and for protecting against radiated interference that exceeds the EMC permissibility limits. Given its specifications and popularity among engineers, this diode has the potential to be used in many different applications.

The 1.5KA11AHE3/54 has a peak power rating of 400W, a single shot peak pulse current of 18A, and a DC leakage current of 10A. The device is also rated to operate in temperatures ranging from -55°C to 125°C, which makes it an ideal choice for use in automotive applications. Additionally, the device is available in two packages: a SOT-23 and a SOD-323, making it suitable for both surface mount and through-hole applications.

This device is used primarily to protect on-board electronics from voltage transients, excessive ESD voltages, and EMI/RFI interference. The TVS diode can be used in a variety of applications, such as in computers, cell phones, medical electronics, and automotive circuitry. By protecting these devices from power surges and other electrical overstress, the 1.5KA11AHE3/54 ultimately ensures that the connected electronics operate reliably and safely.

The 1.5KA11AHE3/54’s efficient working principle relies on its ability to rapidly detect any changes in voltage and react accordingly to limit the peak current flowing by quickly increasing its conductivity. When normal operating conditions are present, the diode remains in a high impedance state. When a transient voltage spike occurs, the diode will start conducting to divert the current flow away from protected circuits, thereby limiting the voltage within an acceptable range.

In conclusion, the 1.5KA11AHE3/54 is a versatile, reliable, and efficient surface mount diode specifically designed to protect against voltage transients up to 1.2kV. This diode is ideal for use in a variety of applications, such as computers, cell phones, medical electronics, and automotive circuitry. Additionally, the diode is highly effective due to its efficient working principle of rapidly detecting voltage spikes and increasing its conductivity to divert current away from protected circuits.

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