PLZ11A-HG3/H

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Diodes are ubiquitous in electronics, with applications in almost every field of engineering due to their ability to allow or block the flow of electrical current, enabling the construction of simple logic gates. Zener diodes are a type of semiconductor which, when reversed biased, exhibit a near-ideal behaviour in which they are able to regulate a voltage level when a certain current flows. This makes them ideal for voltage regulation.

The PLZ11A-HG3/H is a member of the PLZ series of single Zener diodes from Diodes Incorporated. This series has been designed for a very low zener voltage range between 4.7V and 9.1V, with high-level safety ratings in accordance with UL1577 6th edition surge testing regulations. The diodes in this series offer a variety of popular zener voltages, with breakover ratios and regulatory specifications designed for both automotive and industrial applications.

The devices are low-noise, low-capacitance, ESD-protected, single-die, low-footprint components, intended primarily for DC-DC converters and LED luminaires. With their insulating silicon nitride passivation layer, they are highly resistant to moisture, chemicals and particulate contaminants, making them suitable for use in highly corrosive environments. Their high-temperature operation and low-leakage characteristics make them ideal for use in high-reliability and automotive applications.

The PLZ11A-HG3/H is a single Zener diode with a Zener voltage of 11.0V. It can dissipate up to 350mW in the ambient temperature range of -40 to +105°C and its peak reverse current rating is 200mA. It has a maximum surge power rating of 0.5W and its reverse voltage is 12V. Its maximum clamping voltage is 15V and its capacitance is 9pF. Its maximum leakage current at 25°C is 50µA.

The working principle of the PLZ11A-HG3/H is quite simple. As with all Zener diodes it is reverse biased, meaning the applied voltage is opposite the direction of conventional current flow. This produces a voltage drop between the anode and cathode which is determined by the Zener voltage. When the voltage on the device rises above the Zener voltage, a small amount of current passes through the diode, allowing it to regulate the output voltage. This makes it ideal for voltage regulation applications.

The PLZ11A-HG3/H is applicable in a wide range of fields, including automotive, industrial, computer, telecom and electric power systems. It can be used in voltage regulators and converters and is particularly suited to LED luminaires due to its low-noise and low-capacitance characteristics. Its high-temperature operation makes it suitable for use in high-reliability and automotive applications, as well as standard consumer electronic circuits.

In conclusion, the PLZ11A-HG3/H is a reliable and dependable Zener diode with a wide variety of applications. Thanks to its low-leakage characteristics, high-temperature operation and ESD protection, it is suitable for use in all manner of DC-DC converters and LED luminaires. Its simple operating principle, combined with its wide operating temperature range, makes it an ideal choice for a variety of industrial, automotive and consumer electronics applications.

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