DDZ9700S-7

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The DDZ9700S-7 is a single Zener diode that belongs to a family of semiconductor diodes that allow electricity to flow in one direction only. In this diode, the positive anode is connected to the negative cathode, passing through a thin layer of semiconductor material within the diode. Zener diodes, in particular, have a reverse breakdown voltage property, which is triggered when a voltage star exceeds the breakdown voltage. The breakdown voltage of the DDZ9700S-7 is 7.5V, with a maximum reverse power dissipation of 500mW.

The primary application field of the DDZ9700S-7 are in regulating voltages, stabilizing current and preventing backflow. All of these three points can be achieved when the diode is connected in an electrical circuit in a reverse bias, creating a zener impedance network, so that current can flow either forward or reverse, allowing it to do two jobs in one diode as voltage regulator and also as a transient suppressor. This type of diode can, also, be used in a boost regulator, where the incoming voltage is amplified with the required voltage being set by the zener diode.

The working principle of the DDZ9700S-7 starts with the basic one-way current-flow of diodes when the anode is connected to the positive and the cathode to the negative. When this diode is connected in a reverse bias (anode connected to negative, cathode to positive), the Zener effect kicks in as the potential of the anode rises above the zener voltage. When the zener voltage is reached, electrons in the anode-cathode junction are bumped into the junction, creating a conduction channel between both anode and cathode, allowing current to carry on in a reverse direction. This creates a voltage drop across the diode, maintaining a constant voltage across the diode.

The DDZ9700S-7 can also be used in several situations, such as peak detection circuits, clipper circuits, voltage reference circuits, surge and high-voltage protection, capacitor discharge circuits and security systems, among others.

In conclusion, the DDZ9700S-7 is a single Zener diode with a breakdown voltage of 7.5V and a maximum reverse power dissipation of 500mW. It is primarily used in electrical circuit in a reverse bias configuration to regulate voltages, stabilize currents and prevent backflow. It can also be used in a number of applications, including peak detection circuits, clipper circuits, voltage reference circuits, surge and high-voltage protection, capacitor discharge circuits and security systems.

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