1PMT5945B/TR7

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The 1PMT5945B/TR7 is a single Zener diode, primarily designed for precision voltage regulation and low noise applications. The device is capable of handling up to 1A of forward current, and has a maximum reverse current leakage of less than 1microamp. The operating temperature range of the diode is -55C to +125C.

The 1PMT5945B/TR7 is primarily used in precision voltage regulator applications, as it can deliver highly consistent and reliable voltage regulation. Typical applications include power supplies and voltage pre-regulators, where tight control of the output voltage is essential.

The working principle of the diode is based on the Zener effect, which occurs when electrons and holes are injected into a reverse-biased p-n junction. As the voltage increases and exceeds the breakdown voltage of the junction, a current starts to flow through the diode, which causes a decrease in the voltage across the junction. This reduction in the voltage across the junction is referred to as the Zener voltage.

The Zener voltage for the 1PMT5945B/TR7 is 5.9V, and the maximum Zener current is 400mA. The reverse leakage current at the rated Zener voltage is a maximum of 0.1mA. This low reverse leakage current ensures that the diode can provide a consistently regulated output voltage, even in the presence of noise or an AC ripple.

In addition to voltage regulation applications, the 1PMT5945B/TR7 can also be used as a noise suppressor, as it can block high frequency signals up to 4GHz and provide excellent common mode noise rejection for signals up to 1GHz. It is also well suited for use in battery-powered devices, as it has a low forward voltage drop and a low power dissipation.

The 1PMT5945B/TR7 is an ideal choice for a variety of applications, from voltage regulation to noise suppression, and from battery-powered applications to high speed data communication. With its excellent noise rejection and high current handling, the diode is an excellent choice for precision voltage regulation and low noise applications.

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