MX5KP20AE3

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MX5KP20AE3 Application Field and Working Principle

Transient Voltage Suppression (TVS) diodes, such as the MX5KP20AE3, are designed to protect sensitive components against the damaging effects of electrical transients, like noise and voltage spikes, in electronic systems. In addition to protecting components, these diodes can dissipate power by providing a safe path for transients. Knowing the application field and working principle of the MX5KP20AE3 will help to ensure proper usage and implementation in electronic systems.

Application Field

The MX5KP20AE3 is designed for multi-line protection of audio, video, and digital components. Its very low clamping voltage of 9.2 V (at 10 A) makes it ideal for use in sensitive applications. The MX5KP20AE3 diverts surge current away from sensitive circuitry, thereby preventing damage from ESD, lightning, and other transient events. In addition, the MX5KP20AE3 is compatible with the IEC 61000-4-2 standard and is rated for use in temperatures from -55 °C to +150 °C.

Working Principle

The MX5KP20AE3 is a unidirectional silicon avalanche diode in a package that allows for very low internal capacitance. The diode is designed to suppress high-voltage transients that exceed its breakdown voltage. When a transient occurs, the diode begins its avalanche breakdown process, allowing current to flow. As the current passes through the diode, it is rapidly converted to heat, dissipating the potential energy of the transient before it has a chance to damage sensitive components. The diode will not begin to conduct until the transient has exceeded the breakdown voltage of the diode - 9.2 V in this case. In the event of a sustained over-voltage above its breakdown voltage, the diode will begin to draw a large amount of current and quickly become power limited.

In order to properly utilize a TVS diode, users must understand its application field and working principle. This is especially true of something as sensitive as the MX5KP20AE3. The MX5KP20AE3 is specifically designed to protect audio, video, and digital components from high voltage transients and ESD. Its low breakdown voltage and wide temperature range make it ideal for these applications. Finally, understanding the principle on which it works will ensure that the diode is properly used and implemented in order to provide the desired protection.

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