DDZ39ASF-7 Discrete Semiconductor Products

Introduction

The DDZ39ASF-7 Zener single diode is Silicon epitaxal type diode which is typically used in applications where a low leakage current and high density are critical requirement. This diode uses an ultra-low leakage current junction that makes it an ideal choice for many circuits, including voltage regulation circuits and reversing polarity protection. This product offers excellent stability with very low DC leakage current rated up to 5mA. In addition, it features low capacitance and low thermal resistance that allows simple and efficient circuit designs.

Applications

The DDZ39ASF-7 is a versatile diode that can be applied in many applications, such as voltage regulation, voltage control, reverse polarity protection, and power supply circuits. It is ideal for pulse applications, since its stability and low leakage current make it highly dissipation-resistant over its lifetime. This allows it to withstand large transient voltage spikes without failing. Furthermore, this diode has excellent noise-rejection properties, which make it a great choice for noise-sensitive circuits, such as audio devices.

Working Principle

The DDZ39ASF-7 works by allowing a certain amount of current to flow through it in one direction, while blocking it from flowing in the opposite direction. This is achieved by the diode junction, which effectively displaces electrons from one side of the diode to the other side. When a voltage is applied to the diode, electrons from the higher potential side will move towards the lower potential side. This creates a charge imbalance that allows some current to pass through, while inhibiting current flow in the opposite direction.

The static forward voltage drop across the diode is determined by the amount of current flowing through the diode, which is in turn determined by the applied forward voltage. When the forward voltage across the diode is greater than the Zener voltage break-down voltage, the diode will allow current to flow in both directions, allowing multiple voltages to be applied across the diode. The Zener voltage sets the maximum voltage that the diode can withstand, beyond which the diode will break-down.

Conclusion

The DDZ39ASF-7 Zener single diode is an excellent choice for voltage regulation and reverse polarity protection circuits due to its ultra-low leakage current and excellent noise-rejection properties. This product offers excellent stability and reliability, making it ideal for pulse applications and other demanding circuits. Its low capacitance and thermal resistance also allow for simpler and more efficient circuit designs.