BZX84C12ET1 - Encyclopedia Entry

Product Overview

Category

The BZX84C12ET1 belongs to the category of Zener diodes, which are semiconductor devices designed to maintain a fixed voltage across their terminals.

Use

This particular Zener diode is commonly used for voltage regulation and overvoltage protection in various electronic circuits.

Characteristics

• Voltage Regulation: The BZX84C12ET1 maintains a constant voltage across its terminals, making it suitable for stabilizing voltage in electronic circuits.
• Small Size: This diode is compact, making it ideal for applications with limited space.
• Low Power Dissipation: It exhibits low power dissipation, contributing to its efficiency in electronic circuits.

Package

The BZX84C12ET1 is typically available in a small surface-mount package, such as SOT-23, which facilitates easy integration into circuit boards.

Essence

The essence of the BZX84C12ET1 lies in its ability to provide stable voltage regulation and protect sensitive components from overvoltage conditions.

Packaging/Quantity

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

Specifications

• Voltage: 12V
• Power Dissipation: 250mW
• Zener Voltage Tolerance: ±5%
• Operating Temperature Range: -65°C to +150°C
• Forward Voltage: 0.9V (max) at 10mA

Detailed Pin Configuration

The BZX84C12ET1 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 provides the stable 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, preventing damage to sensitive components.

Advantages

• Stable Voltage Output: Ensures consistent voltage levels in electronic circuits.
• Compact Size: Ideal for applications with space constraints.
• Overvoltage Protection: Safeguards sensitive components from potential damage.

Disadvantages

• Limited Current Handling: May not be suitable for high-current applications.
• Voltage Tolerance: The specified voltage may have a tolerance that could impact precision-critical applications.

Working Principles

The BZX84C12ET1 operates based on the Zener effect, where it allows current to flow in reverse bias once the voltage reaches its breakdown voltage, maintaining a relatively constant voltage drop across its terminals.

Detailed Application Field Plans

• Voltage Regulation: Used in power supplies and voltage reference circuits to ensure stable output.
• Overvoltage Protection: Employed in electronic systems to protect sensitive components from voltage spikes.

Detailed and Complete Alternative Models

• BZX84C5V6ET1: 5.6V Zener diode with similar characteristics
• BZX84C15ET1: 15V Zener diode offering a different voltage option
• BZX84C20ET1: 20V Zener diode for higher voltage requirements

In conclusion, the BZX84C12ET1 Zener diode offers reliable voltage regulation and overvoltage protection in a compact package, making it suitable for a wide range of electronic applications.

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