BZX79B3V9 A0G
Product Overview
Category
The BZX79B3V9 A0G belongs to the category of Zener diodes.
Use
It is commonly used for voltage regulation and protection in electronic circuits.
Characteristics
- Zener voltage: 3.9V
- Power dissipation: 500mW
- Package type: Axial leaded
- Operating temperature range: -65°C to +200°C
- Reverse leakage current: 5µA
Package
The BZX79B3V9 A0G is typically available in a DO-35 package.
Essence
This Zener diode is essential for maintaining a constant voltage across a circuit, especially in applications where voltage stability is critical.
Packaging/Quantity
It is usually packaged in reels or bulk quantities, with specific quantities varying by manufacturer.
Specifications
- Zener voltage: 3.9V ±5%
- Power dissipation: 500mW
- Maximum forward voltage: 1.2V
- Reverse current: 5µA
- Temperature coefficient: 5mV/°C
Detailed Pin Configuration
The BZX79B3V9 A0G has two leads, with the cathode marked by a band on the body of the diode.
Functional Features
- Voltage regulation: The diode maintains a constant voltage across the circuit.
- Overvoltage protection: It prevents excessive voltage from damaging sensitive components.
Advantages
- Precise voltage regulation
- Compact size
- Wide operating temperature range
Disadvantages
- Limited power dissipation capability
- Sensitivity to temperature changes
Working Principles
The BZX79B3V9 A0G operates based on the Zener effect, where it begins to conduct in the reverse-biased direction once the voltage across it reaches its specified Zener voltage. This allows it to regulate the voltage across the circuit.
Detailed Application Field Plans
The BZX79B3V9 A0G is widely used in various electronic devices such as: - Voltage regulators - Power supplies - Signal clamping circuits - Overvoltage protection circuits
Detailed and Complete Alternative Models
Some alternative models to the BZX79B3V9 A0G include: - BZX79B3V3 A0G (3.3V Zener voltage) - BZX79B4V3 A0G (4.3V Zener voltage) - BZX79B5V6 A0G (5.6V Zener voltage)
In conclusion, the BZX79B3V9 A0G Zener diode is a crucial component in electronic circuits, providing precise voltage regulation and overvoltage protection. Its compact size and wide operating temperature range make it suitable for various applications, although it does have limitations in power dissipation and sensitivity to temperature changes.
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What is the BZX79B3V9 A0G?
- The BZX79B3V9 A0G is a 3.9V Zener diode with a tolerance of ±5%.
What are the typical applications of the BZX79B3V9 A0G?
- It is commonly used in voltage regulation, overvoltage protection, and signal clamping circuits.
What is the maximum power dissipation of the BZX79B3V9 A0G?
- The maximum power dissipation is 500mW.
What is the operating temperature range for the BZX79B3V9 A0G?
- The operating temperature range is -65°C to +200°C.
What is the voltage tolerance of the BZX79B3V9 A0G?
- The voltage tolerance is ±5%.
What is the forward voltage drop of the BZX79B3V9 A0G?
- The forward voltage drop is typically 1.2V.
What is the reverse leakage current of the BZX79B3V9 A0G?
- The reverse leakage current is typically 5µA.
Can the BZX79B3V9 A0G be used for voltage regulation in low-power applications?
- Yes, it is suitable for low-power voltage regulation due to its 500mW power dissipation.
Is the BZX79B3V9 A0G suitable for automotive applications?
- Yes, it can be used in automotive electronics within its specified operating temperature range.
What are some common alternatives to the BZX79B3V9 A0G?
- Alternatives include other Zener diodes with similar voltage ratings and power dissipation capabilities, such as the BZX55C3V9 or BZT52C3V9 series.