SMAJ20C-E3/61

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TVS diodes have become increasingly critical components for surge protection of sensitive circuits. The SMAJ20C-E3/61 is a common TVS diode used for many different applications. This article will discuss the typical applications of the diode as well as its working principle.

One of the primary applications of the SMAJ20C-E3/61 is the protection of electronic components from over-voltage conditions. This diode is able to absorb high-powered voltage spikes, such as those created by lightning strikes, without damage to nearby components. It is also used in the design of power supply systems where it can protect sensitive components from induction transients and noise.

The diode can also be used as a magneto-sensitive device. This application involves using the diode to detect an external magnetic field. In this case, the diode is connected in series with a resistor, and when an external magnetic field generates a voltage across the diode, it causes a current to flow through the circuit, triggering the diode into conduction.

The working principle of the SMAJ20C-E3/61 is fairly straightforward. It is a silicon avalanche diode which expands its own current as a result of the voltage applied to its junction. The avalanche diode works by passing the current through a specially designed p-n junction which has a lower breakdown voltage than other diode types. When a sufficient voltage is applied to the junction, it triggers an electrical discharge, allowing for a much higher peak current to flow through the diode.

The SMAJ20C-E3/61 is a popular choice amongst engineers due to its high surge withstand capability, low leakage current, and relatively low-cost. This diode is available in many different packages, and can be used in many applications such as power supply protection, data communications protection, and automotive electronics protection.

In summary, the SMAJ20C-E3/61 is a popular choice for surge protection of sensitive components. It is a silicon avalanche diode which can absorb high-powered voltage spikes, and it is also suitable for use as a magneto-sensitive device. This diode is available in many packages, and is becoming increasingly important in the protection of sensitive components from over-voltage conditions.

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