1PMT4122/TR13

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The 1PMT4122/TR13 is a high-performance Zener diode with single-ended terminals manufactured by ON Semiconductor. It has a breakdown voltage of 13V and a current capability of 2W. It is widely used in the power grid, industrial process control, and automotive applications. This diode is specially designed for providing the tightest tolerance of any series of Zener diodes for superior regulation and precision.

The 1PMT4122/TR13 is a reverse-biased diode and prevents current from passing from the cathode to anode. It has a negative temperature coefficient and requires careful control of temperature deviation. A Zener diode works in the breakdown region, where the applied voltage is greater than the breakdown voltage. When it is forward biased, the diode behaves normally and allows current flow, but when it is reverse-biased, the applied voltage surpasses the breakdown voltage and the diode breaks down and allows current to flow. This process is known as Zener breakdown.

In the breakdown region, the diode\'s reverse current remains stable despite fluctuations in the applied voltage, so the diode provides excellent protection against overvoltage. This feature is especially useful in load circuits, as it limits the voltage applied to a load to a specified level and protects it from excessive voltage.

The 1PMT4122/TR13 also has an extremely low series resistance of 0.4 ohms, which prevents the occurrence of voltage drops in the circuit. This is crucial for systems with high-frequency switching, as the lower the series resistance, the more stable the voltage across the diode is. The diode also has a low capacitance, which prevents disturbance from entering the system from other sources.

The 1PMT4122/TR13 provides superior protection from overvoltage, excellent stability and low leakage current, making it ideal for power grid, industrial process control, and automotive applications. It is a good choice for any system that requires tight regulation of voltage or current and superior protection from overvoltage.

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