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BZX79C3V9
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BZX79C3V9 Diode Encyclopedia Entry

Product Overview

Category

The BZX79C3V9 diode belongs to the category of Zener diodes.

Use

It is commonly used for voltage regulation and protection in electronic circuits.

Characteristics

  • Voltage: 3.9V
  • Power Dissipation: 500mW
  • Package: DO-35
  • Tolerance: ±5%
  • Operating Temperature: -65°C to +200°C

Packaging/Quantity

The BZX79C3V9 diode is typically available in reels or bulk packaging, with quantities varying based on supplier and customer requirements.

Specifications

  • Zener Voltage: 3.9V
  • Test Current: 5mA
  • Maximum Reverse Leakage Current: 100nA
  • Maximum Zener Impedance: 40Ω

Detailed Pin Configuration

The BZX79C3V9 diode has two pins, anode, and cathode. The anode is connected to the positive terminal, while the cathode is connected to the negative terminal.

Functional Features

  • Precise voltage regulation
  • Overvoltage protection
  • Stable performance over a wide temperature range

Advantages

  • Small form factor
  • High reliability
  • Low cost

Disadvantages

  • Limited power dissipation capability
  • Sensitivity to temperature variations

Working Principles

The BZX79C3V9 diode operates based on the Zener effect, where it maintains a constant voltage across its terminals when reverse biased, providing a stable reference voltage for circuit operation.

Detailed Application Field Plans

The BZX79C3V9 diode finds applications in various electronic circuits, including: - Voltage regulators - Overvoltage protection circuits - Signal clamping circuits - Voltage reference circuits

Detailed and Complete Alternative Models

Some alternative models to the BZX79C3V9 diode include: - 1N4728A (3.3V) - BZT52C3V6 (3.6V) - 1N4732A (4.7V)

In conclusion, the BZX79C3V9 diode is a versatile component widely used for voltage regulation and protection in electronic circuits, offering precise voltage control and overvoltage protection. While it has limitations in power dissipation and temperature sensitivity, its small form factor, reliability, and cost-effectiveness make it a popular choice in various applications.

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Énumérez 10 questions et réponses courantes liées à l'application de BZX79C3V9 dans les solutions techniques

  1. What is the BZX79C3V9?

    • The BZX79C3V9 is a 3.9V Zener diode designed for voltage regulation and protection in electronic circuits.

  2. What are the typical applications of BZX79C3V9?

    • It is commonly used in voltage reference, voltage stabilization, and overvoltage protection circuits.

  3. What is the maximum power dissipation of BZX79C3V9?

    • The maximum power dissipation is typically around 500mW.

  4. What is the voltage tolerance of BZX79C3V9?

    • The voltage tolerance is typically ±5%.

  5. What is the operating temperature range for BZX79C3V9?

    • The operating temperature range is usually from -65°C to +150°C.

  6. How does BZX79C3V9 provide voltage regulation?

    • It operates in the reverse breakdown region, maintaining a nearly constant voltage across its terminals.

  7. Can BZX79C3V9 be used for overvoltage protection?

    • Yes, it can be used to limit the voltage across a circuit to a safe level by shunting excess current.

  8. What is the forward voltage drop of BZX79C3V9?

    • The forward voltage drop is typically around 1.2V.

  9. Is BZX79C3V9 suitable for low-power applications?

    • Yes, it is suitable for low-power applications due to its moderate power dissipation capability.

  10. Are there any alternative components to BZX79C3V9 with similar characteristics?

    • Yes, other Zener diodes such as BZX55C3V9 or BZT52C3V9 may have similar characteristics and can be used as alternatives.