Vishay Semiconductor Diodes Division
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BZX85B47-TR
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BZX85B47-TR: Product Overview and Detailed Information

Introduction

The BZX85B47-TR is a crucial component in the field of electronics, belonging to the category of Zener diodes. This entry provides an in-depth overview of the BZX85B47-TR, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Zener Diode
  • Use: Voltage regulation and protection in electronic circuits
  • Characteristics: Precise voltage regulation, low impedance, and high reliability
  • Package: Axial leaded package
  • Essence: Provides stable voltage reference
  • Packaging/Quantity: Typically available in reels or bulk packaging

Specifications

  • Voltage: 47V
  • Power Dissipation: 1.3W
  • Zener Impedance: 5Ω
  • Operating Temperature Range: -65°C to +200°C
  • Tolerance: ±5%

Detailed Pin Configuration

The BZX85B47-TR has a standard axial leaded package with two leads. The anode is connected to one lead, while the cathode is connected to the other lead.

Functional Features

  • Voltage Regulation: Maintains a constant voltage across the load
  • Overvoltage Protection: Safeguards sensitive components from voltage spikes
  • Stable Reference: Provides a stable voltage reference for precision circuits

Advantages and Disadvantages

Advantages

  • Precise voltage regulation
  • Low impedance
  • High reliability
  • Overvoltage protection

Disadvantages

  • Limited power dissipation capability
  • Tolerance of ±5% may not be suitable for some applications

Working Principles

The BZX85B47-TR operates based on the Zener effect, where it maintains a constant voltage drop across its terminals by allowing current to flow in reverse bias when the applied voltage reaches the Zener voltage.

Detailed Application Field Plans

The BZX85B47-TR finds extensive use in various electronic applications, including: - Voltage regulation in power supplies - Overvoltage protection in automotive electronics - Precision voltage references in instrumentation

Detailed and Complete Alternative Models

  • BZX85C47-TR: Similar characteristics with a tighter tolerance of ±2%
  • BZX85A47-TR: Lower power dissipation but with a higher voltage tolerance of ±10%
  • 1N4747A: Comparable voltage rating with a different package type

In conclusion, the BZX85B47-TR Zener diode plays a vital role in providing stable voltage regulation and overvoltage protection in electronic circuits. Its precise characteristics make it suitable for a wide range of applications, and it has several alternative models that cater to specific requirements within the electronics industry.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av BZX85B47-TR i tekniska lösningar

  1. What is the BZX85B47-TR?

    • The BZX85B47-TR is a 47V Zener diode designed for voltage regulation and overvoltage protection in electronic circuits.

  2. What are the typical applications of BZX85B47-TR?

    • The BZX85B47-TR is commonly used in voltage regulator circuits, voltage reference circuits, and as a protective element against voltage spikes.

  3. What is the maximum power dissipation of BZX85B47-TR?

    • The maximum power dissipation of BZX85B47-TR is typically around 1.3W.

  4. What is the voltage tolerance of BZX85B47-TR?

    • The voltage tolerance of BZX85B47-TR is typically +/-5%.

  5. What is the operating temperature range of BZX85B47-TR?

    • The BZX85B47-TR can typically operate within a temperature range of -65°C to +175°C.

  6. How does BZX85B47-TR provide overvoltage protection?

    • When the voltage across the BZX85B47-TR exceeds its breakdown voltage (47V), it starts conducting and clamps the voltage to protect the circuit.

  7. Can BZX85B47-TR be used in reverse bias?

    • Yes, the BZX85B47-TR can be used in reverse bias as a voltage reference or as a protective element.

  8. What is the forward voltage drop of BZX85B47-TR?

    • The forward voltage drop of BZX85B47-TR is typically around 1.2V at a specified current.

  9. Is BZX85B47-TR suitable for high-frequency applications?

    • No, BZX85B47-TR is not suitable for high-frequency applications due to its inherent capacitance and response time.

  10. Are there any alternative components to BZX85B47-TR with similar characteristics?

    • Yes, other alternatives include BZT52C series, 1N4731A, and 1N746A, which have comparable voltage ratings and characteristics.