SMBG4743E3/TR13

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Introduction

The SMBG4743E3/TR13 is a single-terminal Zener diode package specifically designed for a wide variety of applications. It has an optimized structure consisting of a small substrate and a low resistance Zener element. This package offers a low forward voltage, low temperature coefficient, and low reverse leakage current properties, making it an ideal choice for use in power supplies, DC/DC converters, and other electronic devices or circuits.

Applications

The SMBG4743E3/TR13 is a perfect fit for applications where a low Zener voltage along with a low forward voltage and low temperature coefficient is needed. Its small size and low weight also make it a desirable choice for applications where space is limited. Due to its optimized design, the package is able to provide superior protection against electrostatic discharge. It is therefore suitable for use in communications equipment, tablets, and other products where ESD protection is required.

In voltage regulator applications, the diode can be used to prevent an over-voltage condition. When used in surge-protection circuits, it can provide protection against electrostatic discharge and transient voltage spikes. It can also be used as an audio amplifier pre-emphasis capacitor, providing a high level of performance and stability. Other applications include voltage-controlled oscillators, battery-operated circuits, and even mobile phones.

Working Principle

The SMBG4743E3/TR13 is configured in a voltage-regulating diode circuit, which works on the principle of a current regulating device. The device is generally connected in series with a voltage source. The Zener element in the SMBG4743E3/TR13 is responsible for maintaining a constant voltage until the current reaches a certain level. Once the current exceeds this threshold, the diode starts to regulate the current, causing it to drop and bringing the voltage back to the original level.

The Zener element also offers protection against short-circuiting and reverse voltage conditions, as it remains in a forward-biased state even when the voltage exceeds its level. This forward-biased state allows the Zener element to continue to activate the regulating current, preventing any sudden change in the voltage.

Conclusion

In conclusion, the SMBG4743E3/TR13 is a versatile single-terminal Zener diode package suitable for a wide variety of applications. Its optimized design consists of a small substrate and a low resistance Zener element, allowing it to provide superior protection from ESD and transient voltage spikes. The package is also able to provide protection against over-voltage conditions and short-circuits, making it a great choice for voltage regulator applications. Its low forward voltage and low temperature coefficient offer a high level of reliability and performance.

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