ACGRB207-HF

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The ACGRB207-HF is an undervoltage detection diode in a miniature SOD-323 package for low reverse current applications. It has low voltage drop which enables more efficient processes. It is suitable for automotive applications and is rated to 200V.

ACGRB207-HF product parameters embrace the built-in current and power (Iq/Pd) ratings in a wide range of working voltages. It also offers superior reliability and low forward voltage drop of 0.75V and 0.60V at 850mA and 200mA, respectively. The diode is also rated to handle up to 12A.

The ACGRB207-HF device is a single element, low power, reverse-biasing, high-frequency rectifier with low forward voltage and superior temperature performance. The built-in voltage regulator regulates the forward current and maintains it within a pre-set safe limit. The device features a high-efficiency, anti-saturation voltage regulating capacitor, which provides stable operation over a wide temperature range.

This diode is commonly used in power applications for protection against overvoltages and for controlling loading and discharging of large capacitors. It is also used for protecting critical loads against current surges caused by switching and overvoltage. Additionally, the device is often used in series in the power supply since its low forward voltage helps regulate the current level.

In order to understand the working principle of the ACGRB207-HF, it is necessary to know how a diode acts when connected in a forward bias and how it functions in a reverse bias. In the forward bias, a diode acts as a switch, and it requires a voltage that is higher or equal to its forward threshold voltage (Vft) to start conducting. As current increases, so does the voltage. When the maximum current that a diode can handle is reached, the voltage remains relatively constant until the diode eventually breaks down.

In a reverse bias, the opposite is true. A low voltage, usually somewhere in between 0.5V to 2V, has to be applied to the diode in order for it to conduct. When the voltage applied to the device exceeds the breakdown voltage, the diode will start to conduct. This is commonly known as avalanche breakdown. The ACGRB207-HF diode has a breakdown voltage of 200V, which makes it suitable for high voltage applications.

Another important factor to consider when using the ACGRB207-HF is the temperature range. The device is designed to work over an operating temperature range of -40°C to +125°C. It is also important to note that the Vft and the breakdown voltage of the diode may vary slightly depending on its working environment.

The ACGRB207-HF is an ideal solution for applications that require protection against overcurrent and overvoltage. Its low failure rate, superior temperature performance, and the low forward voltage assist in minimizing power consumption while offering superior performance. Additionally, its small size and universal package are compatible with most circuits. It is suitable for use in automotive, industrial, and domestic applications.

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