BZV55C75
Low-power Zener diodes for voltage regulation in compact designs
Manufacturer： ['multicomp', 'oneic', 'microsemi', 'taiwan-semiconductor']
series introduction
# Introduction to the BZV55C75 Product Series
## 1. Overview
The BZV55C75 product series belongs to the category of Zener diodes. Zener diodes are a special type of semiconductor device that play a crucial role in electronic circuits, and the BZV55C75 series is designed to offer reliable and efficient voltage regulation capabilities. These diodes are engineered to operate in the reverse - breakdown region in a controlled manner, making them ideal for a wide range of applications where stable voltage levels are required.
## 2. Key Specifications
### Electrical Characteristics
- **Zener Voltage (Vz)**: The BZV55C75 series is characterized by a Zener voltage of approximately 7.5V. This means that when the diode is reverse - biased and the voltage across it reaches around 7.5V, it starts to conduct current in the reverse direction while maintaining a relatively constant voltage across its terminals. The tolerance of the Zener voltage is typically within a specified range, ensuring consistent performance across different devices in the series.
- **Power Dissipation (Pd)**: These diodes are designed to handle a certain amount of power. The power dissipation rating indicates the maximum power that the diode can safely dissipate without getting damaged. For the BZV55C75 series, the power dissipation is carefully specified, which is important for applications where the diode may be subjected to high - current or high - voltage conditions.
- **Dynamic Resistance (Rz)**: The dynamic resistance of the Zener diode is a measure of how much the Zener voltage changes with a change in the Zener current. A low dynamic resistance is desirable as it means that the Zener voltage remains more stable over a range of currents. The BZV55C75 series is engineered to have a relatively low dynamic resistance, providing better voltage regulation.
### Physical Characteristics
- **Package Type**: The BZV55C75 diodes are available in a specific package type. Common packages for this series are designed to be easily mountable on printed circuit boards (PCBs). The package provides mechanical protection to the diode and also facilitates heat dissipation. For example, some packages may have a small form factor, which is suitable for compact electronic devices, while others may be designed for better heat transfer to handle higher power applications.
- **Temperature Range**: The series is designed to operate within a specified temperature range. This is important because the electrical characteristics of the diode can be affected by temperature. The BZV55C75 diodes are typically rated to operate over a wide temperature range, ensuring reliable performance in different environmental conditions, from low - temperature industrial settings to high - temperature consumer electronics applications.
## 3. Working Principle
When a Zener diode like those in the BZV55C75 series is forward - biased, it behaves like a normal diode, allowing current to flow easily in the forward direction with a small forward voltage drop. However, when it is reverse - biased, a small reverse leakage current flows until the reverse voltage reaches the Zener voltage (Vz). Once the Zener voltage is reached, the diode enters the reverse - breakdown region. In this region, the diode conducts a relatively large reverse current while maintaining a nearly constant voltage across its terminals. This property makes it useful for voltage regulation, as it can be used to maintain a stable voltage in a circuit even when the input voltage or load current varies.
## 4. Applications
### Power Supplies
In power supply circuits, the BZV55C75 series can be used to regulate the output voltage. By connecting the Zener diode in parallel with the load, it can ensure that the voltage across the load remains constant. For example, in a DC power supply, if the input voltage fluctuates, the Zener diode will adjust the current flowing
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