SMBJ5363B/TR13

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Diodes - Zener - Single

SMBJ5363B/TR13 is a single surface mount Zener diode in SOT-23 package. It has a 5.6V Zener voltage, with a breakdown voltage of around 5.9V, a max power of 500mW, a max operational temperature of 150°C, and a max clamped peak voltage of 9.1V. The max reverse leakage current is 5.0mA.

Application field and Working Principle

SMBJ5363B/TR13 is designed for general-application use in commercial, industrial, and telecommunications applications. It is ideal for use in a variety of automotive and portable devices, with its 6.2mA Zener current rating and 654mW power dissipation. Its SOT-23 package, small size, and low weight also make it suitable for usage in space-constrained environments.

The working principle of SMBS5363B/TR13 is fairly simple and straightforward. It acts like a reverse-biased diode, with a low forward voltage and a high Zener voltage. When a current passes through the junction, it will come to an equilibrium point. The Zener voltage across the junction will be equal to the voltage of the current source. The reverse-biased junction will then act to maintain a constant voltage across the junction, regardless if the current increases or decreases.

Essentially, the SMBS5363B/TR13 behaves as a voltage regulator, preventing the output voltage from going beyond the Zener voltage. This makes it suitable for a variety of applications, ranging from telecommunications and automotive to consumer electronics, computers, and other consumer devices. It can be used as a low-cost and simple alternative to a linear regulator or a voltage follower.

Aside from that, the SMBS5363B/TR13 also includes an internal temperature compensation mechanism, which helps it to maintain its Zener voltage under temperature variations. This is particularly useful in low-voltage, high-current applications where the temperature can vary significantly, such as automotive and consumer electronic applications. This temperature compensation feature also helps to reduce the effects of aging, thereby extending the lifetime of the device.

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