Allicdata Part #: | DDZ30DQ-7-ND |
Manufacturer Part#: |
DDZ30DQ-7 |
Price: | $ 0.04 |
Product Category: | Discrete Semiconductor Products |
Manufacturer: | Diodes Incorporated |
Short Description: | DIODE ZENER SOD123 |
More Detail: | Zener Diode 29.77V 310mW ±3% Surface Mount SOD-123 |
DataSheet: | DDZ30DQ-7 Datasheet/PDF |
Quantity: | 1000 |
3000 +: | $ 0.03500 |
Series: | Automotive, AEC-Q101 |
Packaging: | Tape & Reel (TR) |
Part Status: | Active |
Voltage - Zener (Nom) (Vz): | 29.77V |
Tolerance: | ±3% |
Power - Max: | 310mW |
Impedance (Max) (Zzt): | 55 Ohms |
Current - Reverse Leakage @ Vr: | 50nA @ 23V |
Voltage - Forward (Vf) (Max) @ If: | 900mV @ 10mA |
Operating Temperature: | -65°C ~ 150°C |
Mounting Type: | Surface Mount |
Package / Case: | SOD-123 |
Supplier Device Package: | SOD-123 |
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The DDZ30DQ-7 is a single zener diode widely used in a range of application fields. A zener diode is a two terminal semiconductor device that has higher reverse breakdown voltage compared to a normal diode. This makes it an indispensable device in areas where circuit protection is of a primary concern.
The DDZ30DQ-7 is a popular zener diode among users with its maximum reverse breakdown voltage of 30V and a power dissipation of 0.5W. Its maximum reverse breakdown current is at 0.1 mA, which is relatively low thus making it a suitable choice for applications that require less current and minimal power draw.
Applications
The main application fields for the DDZ30DQ-7 is to achieve surge suppression, static elimination, circuit protection, and voltage regulation. It is often used in power supplies, stabilizers and surge protection devices. As it is a low voltage device, it is a suitable choice for current limiting applications, where low current and stricter control of voltage is needed.
The DDZ30DQ-7 device can also be used in AC and DC circuits, providing linear current limiting characteristics or PTC resistor-like protection. Thus, it is a suitable choice for circuits commonly found in medical equipment, motor control systems, LED lighting systems, and automotive applications. It provides a relatively cheaper alternative to larger and expensive fuses.
Working Principle
The DDZ30DQ-7 is a two terminal device that works with the forward bias characteristics similar to an ordinary diode. When a forward bias voltage is applied with the anode connected to the positive terminal, the device is under forward bias similar to an ordinary diode. In doing so, the device is able to exhibit a very sharp rise in current as the voltage is increased. This is known as the “knee” of the characteristic curves.
When the reverse bias is applied, the device is able to maintain a very low leakage current. As the voltage increases, the device is able to reach its maximum reverse breakdown voltage. This is when breakdown of the depletion layer occurs and the device is able to allow a high reverse current. The reverse current will then start to decrease as the voltage is increased further, thus forming the zener region and the zener characteristic curve.
Apart from the zener diode’s ability to regulate voltage in reverse bias, it also provides an important function in surge protection, where overvoltage protection is absolutely necessary. This is because the zener effect reduces the excess voltage, thus protecting the device in the event of voltage transients.
The specific data is subject to PDF, and the above content is for reference
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