1N5752B

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The 1N5752B is a single Zener diode commonly used in voltage regulating applications. It features an axial lead, which makes it convenient for through-hole mounting onto printed circuit boards. The 1N5752B is a switching diode with a maximum reverse voltage of 6.2V and a maximum voltage drop of 1.2V at 300mA, making it ideal for low power applications such as reverse polarity protection, over-voltage protection, and general purpose rectification.

The 1N5752B is a widely used switching diode in electronic circuits. It was designed for voltage regulation, commonly for RF applications with low power demands where temperatures are not overly high. The diode offers excellent thermal resistance (typically in the range of 1–2°C/W) and has very low forward leakage current (approximately 1 μA).

Its operating principle is based on the PN junction of a semiconductor, but with a higher voltage drop across the device than a regular rectifying diode. When a Zener diode is placed in a circuit, the current passing through it will cause the voltage across it to go above the Zener voltage. Once the voltage exceeds the Zener voltage, the diode will start conducting and the current passing through it will become constant and independent of the input voltage. This makes it suitable for voltage regulation as any further change in voltage will not cause any fluctuation in current passing through it.

The 1N5752B is especially useful for circuits that require a constant voltage output and can be connected in parallel with the load by adding a resistor in series with the diode to limit the current. When used for reverse polarity protection, it is connected in series with the device being protected; this will allow the current to flow in one direction only and protect the device from overvoltage.

The 1N5752B is a reliable and cost-effective solution for low power applications such as reverse polarity protection, overvoltage protection, and general purpose rectification. With its low voltage drop, excellent thermal resistance, and low leakage current, it is well suited for compact and energy-efficient circuitry designs.

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