| Allicdata Part #: | DDZ9707T-7DITR-ND |
| Manufacturer Part#: |
DDZ9707T-7 |
| Price: | $ 0.06 |
| Product Category: | Discrete Semiconductor Products |
| Manufacturer: | Diodes Incorporated |
| Short Description: | DIODE ZENER 20V 150MW SOD523 |
| More Detail: | Zener Diode 20V 150mW ±5% Surface Mount SOD-523 |
| DataSheet: |  DDZ9707T-7 Datasheet/PDF |
| Quantity: | 1000 |
| 3000 +: | $ 0.05796 |
| Series: | -- |
| Packaging: | Tape & Reel (TR) |
| Part Status: | Active |
| Voltage - Zener (Nom) (Vz): | 20V |
| Tolerance: | ±5% |
| Power - Max: | 150mW |
| Current - Reverse Leakage @ Vr: | 50nA @ 15.2V |
| Voltage - Forward (Vf) (Max) @ If: | 900mV @ 10mA |
| Operating Temperature: | -65°C ~ 150°C |
| Mounting Type: | Surface Mount |
| Package / Case: | SC-79, SOD-523 |
| Supplier Device Package: | SOD-523 |
| Base Part Number: | DDZ9707 |
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Diodes - Zener - Single
The DDZ9707T-7 is a single Zener diode, which is more commonly referred to as a voltage reference diode. The diode has a variety of applications, and its working principle relies on the theory of electric circuits.
Application Field
The most common use for the DDZ9707T-7 is for voltage regulation in power supplies, particularly in high-end audio systems. The diode works to prevent the input current from exceeding the regulation voltage so the output stays within the specified range. Voltage regulation also increases the life of the power supply components.
The diode is also used in automotive applications. It enables the use of electronic fuel injection as well as starter systems. The diode helps to reduce the amount of current that flows through the vehicle electrical systems and minimizes potential voltage spikes that could damage the electronic components.
Finally, the DDZ9707T-7 is commonly used in digital communication applications like Ethernet. The diode helps to protect the data signals from electrical noise which can cause the loss of data.
Working Principle
The DDZ9707T-7 is a PN junction diode, which is formed by connecting two semiconductors together. When a negative voltage is applied to the diode, it does not conduct any current and is in its open circuit state, also known as the cut-off region. The diode\'s resistance is in an infinite state, thus no current can flow through it.
However, when the applied voltage reaches a certain threshold, known as the ‘Zener voltage’, the diode\'s resistance falls and enters the breakdown region. The diode then acts as a resistor and starts to conduct until a certain voltage is reached. The voltage at which the current through the diode peaks is referred to as the ‘knee voltage’.
The diode also has a certain amount of reverse bias leakage current below the breakdown voltage, which keeps the diode in a conducting state even when the voltage is below the breakdown voltage. This current is referred to as ‘Knee current’, and it is this current that is responsible for maintaining the regulated output voltage.
The DDZ9707T-7 is a single Zener diode, which means that it contains a single PN junction. This makes it suitable for applications where the input voltage is lower than the regulated output voltage.
Conclusion
The DDZ9707T-7 is a single Zener diode, which is used mainly for voltage regulation in power supplies. Its working principle involves a PN junction and the theory of electric circuits. The diode helps to maintain the regulated output voltage, and is also used in automotive, digital communication and other applications.