1KSMB120A Circuit Protection

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TVS - Diodes are one of the most important components of modern electronics. 1KSMB120A is a special type of TVS diode that is specifically designed to protect circuits from transient voltages and currents. This application note will describe the features and working principles of the 1KSMB120A.

The 1KSMB120A is a low-capacitance, avalanche breakdown diode specifically designed to protect sensitive electronics from over-voltage and over-current transients. The device is packaged in a small SOT-23 package and is typically used in applications where board space is at a premium. The device has an operating breakdown voltage of 120V and a supply current of 0.4mA.

The 1KSMB120A works by clamping transient voltages above the diode\'s breakdown voltage and dissipating them as low-level forward currents. This process happens incredibly quickly with the 1KSMB120A able to respond in just 20ns. This fast response time combined with its low capacitance makes the device suitable for many high-frequency applications.

The 1KSMB120A is suitable for a variety of applications including connecting between an AC power line and the device\'s ground, protecting sensitive circuit components from over-voltage and over-current conditions, and as an active clamp in voltage-sensitive circuits. The device is also suitable for automotive and industrial applications where a fast response to transients is required.

In summary, the 1KSMB120A is an important device for protecting circuits from transient Voltages and currents and is suitable for a wide range of applications including automotive and industrial applications. The device is fast responding, low capacitance and relatively easy to integrate into a circuit. This makes it an ideal choice for a variety of applications.

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