DDZ21-7

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Diodes - Zener - Single is a category comprised of diodes with voltage regulation characteristics, which are generally used to maintain a constant voltage output in a circuit, despite fluctuations in the input voltage. The DDZ21-7 is a voltage regulator diode that performs this vital task for a variety of applications. This article will explore the characteristics, application field and working principle of the DDZ21-7.

The DDZ21-7 is a 5.6V voltage regulator diode with a positive output voltage tolerance, constructed out of silicon. Its reverse breakdown voltage is 7V and its maximum power dissipation is 500mW. It also has a junction temperature range of between -65°C to +175°C and a total capacitance of 670-1140pF.

This diode is applicable in a variety of applications, ranging from driving LEDs to stabilizing high accuracy signal sources and amplifiers. It is especially useful for those circuits that require a stable voltage supply despite varying input voltage, as its voltage regulating feature ensures even output under all conditions.

The working principle of the DDZ21-7 is based on the special characteristic of the diode, known as the Zener effect. When the voltage across two electrodes is raised above the Zener voltage, a current begins to flow across them, which stabilizes the voltage. In the case of DDZ21-7, this reverse breakdown voltage is 7V, so when the voltage across the two electrodes exceeds this value, a current passes and keeps the output voltage constant.

In summary, the DDZ21-7 is a voltage regulator diode which is popular in a variety of applications and is known for its ability to maintain constant output voltage despite fluctuations in the input. Its working is based on the Zener effect, which occurs when the voltage across the two electrodes exceeds the reverse breakdown voltage of the diode, allowing a current to pass and a subsequent stabilization of the voltage.

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