SMAJ20A-Q

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TVS (transient voltage suppression) diodes provide effective protection against transients, esepcially when paired with other protection components in a circuit. SMAJ20A-Q is one example of such a diode, which can offer superior protection against overvoltages. In this article, we\'ll look at the application field and working principle of the SMAJ20A-Q.

The SMAJ20A-Q is a unidirectional diode that is housed in a DO-214AC package, which makes it ideal for usage in surface-mount applications. It features an excellent combination of low leakage and low clamping voltage, which makes it suitable for protecting against a wide range of transients, including those caused by static discharge, lighting, and power cross. It can also offer effective protection against overvoltage conditions.

An important feature of the SMAJ20A-Q is its RoHS-compliant package, which is free of hazardous substances including lead, making it safer for the environment. It also has a wide operating temperature range, from -55°C to 125°C, and a low capacitance, making it well-suited for ESD and EMC protection applications.

The SMAJ20AQ is designed to operate in a forward conduction environment, and is capable of dissipating up to 20 watts when under surge conditions. It is also capable of repetitively withstanding transient and continuous DC forward voltages up to 200 volts. It features ultra-low on-state resistance for superior ESD protection, and a low leakage current for minimal power dissipation.

The working principle of the SMAJ20AQ is quite simple. When a forward voltage is applied, it will begin to conduct current. As the voltage increases, the current through the diode will also increase, and when the voltage reaches the diode\'s breakdown voltage, the voltage will be “clamped” to a specific level. This clamp voltage is typically lower than the breakdown voltage, which helps to protect the circuit from overvoltage conditions.

The SMAJ20A-Q is an ideal choice for a wide range of applications, including power systems, consumer electronics, automotive interiors, and industrial and medical equipment. It can offer effective protection against surge events, as well as reduce EMI/RFI emissions. It is an ideal choice for ESD and EMC protection applications, as it has a wide range of features that make it effective in such applications.

In summary, the SMAJ20A-Q is an excellent choice for a wide range of applications, thanks to its low leakage current and low clamping voltage, wide operating temperature range, and its RoHS-compliant package. It offers superior protection against transients, and is well-suited for ESD and EMC protection applications. It is capable of dissipating up to 20 watts when under surge conditions, and is capable of repetitively withstanding transient and continuous DC forward voltages up to 200 volts. Its working principle is quite straightforward, and its features make it an excellent choice for a wide range of applications.

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