BZX84C47ET1 - Encyclopedia Entry

Product Overview

Category

The BZX84C47ET1 belongs to the category of Zener diodes, which are semiconductor devices designed to maintain a fixed voltage across their terminals.

Use

This product is commonly used for voltage regulation and protection in various electronic circuits.

Characteristics

• Voltage Regulation: The BZX84C47ET1 provides stable voltage regulation, making it suitable for precision applications.
• Small Size: This diode is compact, allowing for integration into space-constrained designs.
• Low Power Dissipation: It exhibits low power dissipation, contributing to energy-efficient operation.

Package

The BZX84C47ET1 is typically available in a small surface-mount package, such as SOT-23, offering ease of assembly onto circuit boards.

Essence

The essence of the BZX84C47ET1 lies in its ability to provide precise voltage regulation and protection in a compact form factor.

Packaging/Quantity

It is commonly supplied in reels or tape and reel packaging, with quantities varying based on manufacturer specifications.

Specifications

• Voltage: 47V
• Power Dissipation: 350mW
• Zener Impedance: 40Ω
• Operating Temperature Range: -65°C to +150°C

Detailed Pin Configuration

The BZX84C47ET1 typically features three pins: anode, cathode, and a reference terminal. The anode is connected to the positive side of the circuit, the cathode to the negative side, and the reference terminal serves as the fixed voltage output.

Functional Features

• Voltage Regulation: The diode maintains a constant voltage drop across its terminals, ensuring stability in the circuit.
• Overvoltage Protection: It acts as a safeguard against excessive voltage spikes, protecting sensitive components.

Advantages and Disadvantages

Advantages

• Precise voltage regulation
• Compact size
• Low power dissipation

Disadvantages

• Limited current handling capability
• Susceptible to thermal drift at high temperatures

Working Principles

The BZX84C47ET1 operates based on the principle of the Zener effect, where it allows current to flow in reverse bias once the voltage reaches its specified breakdown level, maintaining a constant voltage drop.

Detailed Application Field Plans

Voltage Regulation

The diode can be employed in voltage regulator circuits for stabilizing power supply outputs in various electronic devices, including consumer electronics and industrial equipment.

Overvoltage Protection

It finds application in surge protection circuits to prevent damage to sensitive components from voltage transients and surges.

Detailed and Complete Alternative Models

• BZX84C5V1: 5.1V Zener diode with similar characteristics
• BZX84C12: 12V Zener diode offering comparable performance
• BZX84C30: 30V Zener diode suitable for alternative voltage requirements

In conclusion, the BZX84C47ET1 Zener diode offers precise voltage regulation and overvoltage protection in a compact package, making it a versatile component for various electronic applications.

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