1.5KE150CA-B Circuit Protection

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TVS - Diodes are an important component to help protect electronics from overvoltage problems such as lightning, electrostatic discharge (ESD), induced voltages and electrical transients. One of the most popular TVS - Diodes is the 1.5KE150CA-B. This device is designed to protect low voltage digital ICs from overvoltages of up to 150V peak currents. It also offers bidirectional transient protection from 150V with ultra low leakage current.

The 1.5KE150CA-B is widely used in applications where overvoltage protection is necessary including automotive, commercial, and industrial electronics. The device can be used to protect digital circuits, power supplies, relays, and solenoids from high peak voltages. It can also be used on sensors, airbag electronics, consumer electronics, medical devices, and power supplies.

The working principle of a 1.5KE150/B is quite straightforward. When a high voltage is applied, the diode begins to conduct current and quickly reduces the voltage level. The device will then hold the voltage below 150V until the current exceeds the peak surge value. At this point, the voltage is quickly “clamped” to protect the device from overvoltage. The device will then reset itself quickly and be ready for the next event.

The 1.5KE150CA-B is comprised of a number of elements designed to provide optimal protection. It contains an SMA element which is the “trigger” that initiates the protection process. This SMA element is composed of a Zener diode and a breakdown element. When a high voltage is applied, the SMA element triggers the protection process and quickly brings the voltage down to a safe level. Additionally, the 1.5KE150CA-B contains a series of resistors which help to ensure a low leakage current and reduce the capacitance.

The 1.5KE150CA-B is a reliable and cost-effective way to protect vulnerable electronic components. This device provides a fast response time, a relatively low voltage clamp, and excellent protection from transient voltages. This makes it an ideal solution for automotive, industrial, and commercial applications requiring a robust overvoltage protection solution.

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