CM1236-08DE

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The CM1236-08DE is a TVS diode that is designed to protect circuits against very high-energy surge transients. This diode is part of the surface mount diode family which is essential for high power designs and high density packaging. It provides superior protection against lightning strikes and electromagnetic interferences.

The CM1236-08DE is a uni-directional device which is an alternative to traditional bi-directional diodes. It is designed to protect equipment sensitive to overvoltage voltages of up to 1000W, and its on-state resistance (Rd) is very low, typically in the range of 0.01Ω to 0.09Ω.

The CM1236-08DE is designed to be used in a wide range of applications such as switch mode power supplies (SMPS), computers, consumer electronics, telecommunications, medical devices, automotive, and wireless applications. It is also suitable for high-temperature environments, including downhole drilling. It is an important component in the protection of sensitive electronic circuits from overvoltage phenomena in industrial, computer and consumer applications.

The working principle of the CM1236-08DE is very simple. In order to protect a circuit from an overvoltage event, the diode has to clamp the voltage below its forward voltage and it does this by a combination of the avalanche effect and temperature sensing. In normal conditions, the forward voltage of the diode clamps the voltage below a predefined limit (usually rated in Volts) and this prevents the circuit from over voltage.

In the event of an overvoltage, the avalanche effect triggers and the current through the diode increases exponentially, causing the diode to enter into the avalanche breakdown. This breakdown greatly reduces the voltage across the diode and therefore clamps the voltage to a safe level. The temperature sensing also helps in the overvoltage protection by preventing damage to the diode due to excessive heat generated during the avalanche breakdown.

The CM1236-08DE is a very effective component for overvoltage protection, and its features make it suitable for a wide variety of applications. It also has a very low on-state resistance, which helps to reduce the power loss and improves current sharing between diodes. Its low capacitance and fast switching characteristics also make it suitable for short surge protection applications.

In conclusion, the CM1236-08DE is a very reliable TVS diode and an excellent choice for protecting sensitive electronic circuits from overvoltage events. It is suitable for a wide range of applications in industrial, computer and consumer electronics. With its low on-state resistance, fast switching, and temperature sensing features, it provides superior protection against high-energy surge transients and ensures reliable operation of the circuit.

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