DDZ9697Q-7

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Diodes - Zener - Single are specialized devices made for special applications like regulating voltage in a circuit. They are commonly used for overvoltage protection and work by allowing current in one direction but blocking it when it becomes greater than a certain level. The DDZ9697Q-7 is a single Zener diode with a voltage regulator specification of 5.6V. Its application field and working principle would be explained in this article.

Application Field

A Zener diode is an electronic device which produces a constant voltage when connected in series with a load. Because of this, a Zener diode can be used to limit the voltage of power supplies in electronic circuits, protect against overvoltage, or to provide a stable reference voltage for op-amp circuits. It can also be used to protect or prevent overvoltage in electrical circuits.

The DDZ9697Q-7 is a single Zener diode with a voltage regulator specification of 5.6V. It is often used in DC-DC converters, voltage regulating circuits, and voltage reference circuits as a potential divider as well as in power supplies, alarm/security systems, and RGB LED driving.

Working Principle

A Zener diode utilizes the principle of reverse breakdown when a certain predetermined voltage is reached. When forward biased (VA>0), an increase of the voltage across the diode causes an increase in current. If the voltage reaches a certain reverse voltage (VZ), the current will increase rapidly, this is known as “Zener breakdown”. The voltage across the diode remains hold at the breakdown voltage (VZ).

In the area of reverse breakdown, the diode is similar to a resistor. The primary difference is that the Zener diode maintains a relatively constant voltage, whereas a resistor does not. The Zener diode operates as two resistors, one in series and one in parallel. The value of the reverse breakdown voltage is determined by the series resistor and the value of the reverse breakdown current is determined by the parallel resistor. When the applied reverse voltage exceeds the reverse breakdown voltage, the Zener diode begins to conduct, allowing current to pass through.

When operating in the reverse breakdown region, the DDZ9697Q-7 will have a maximum reverse breakdown voltage of 5.6V and a maximum reverse current of 33mA. The diode also has a maximum power dissipation of 350mW.

Conclusion

The DDZ9697Q-7 is a single Zener diode with a voltage regulator specification of 5.6V. Its application field and working principle have been highlighted in this article. It is used in DC-DC converters, voltage regulating circuits, and voltage reference circuits as a potential divider as well as in power supplies, alarm/security systems, and RGB LED driving. It operates using the principle of reverse breakdown, whereby the voltage across the diode remains hold at the breakdown voltage (VZ).

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