BZX84B12-HE3-18

Introduction

The BZX84B12-HE3-18 is a semiconductor product belonging to the category of Zener diodes. This entry provides an overview of its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Basic Information Overview

• Category: Zener Diode
• Use: Voltage regulation and protection in electronic circuits
• Characteristics: Low leakage current, precise voltage regulation, small package size
• Package: SOT-23
• Essence: Semiconductor device for voltage regulation
• Packaging/Quantity: Available in tape and reel packaging with quantities varying by manufacturer

Specifications

• Voltage: 12V
• Power Dissipation: 250mW
• Zener Voltage Tolerance: ±5%
• Operating Temperature Range: -65°C to +150°C
• Storage Temperature Range: -65°C to +175°C

Detailed Pin Configuration

The BZX84B12-HE3-18 typically has three pins: anode, cathode, and no connection (NC). The anode is connected to the positive terminal of the circuit, the cathode to the negative terminal, and the NC pin is left unconnected.

Functional Features

• Voltage Regulation: Maintains a constant voltage across its terminals, providing stability in electronic circuits.
• Overvoltage Protection: Safeguards sensitive components by diverting excess voltage away from the circuit.

Advantages and Disadvantages

Advantages

• Precise voltage regulation
• Small package size
• Low leakage current

Disadvantages

• Limited power dissipation capability
• Vulnerable to overcurrent conditions

Working Principles

The BZX84B12-HE3-18 operates based on the principle of the Zener effect, where it maintains a nearly constant voltage drop across its terminals when reverse-biased at or above its breakdown voltage.

Detailed Application Field Plans

The BZX84B12-HE3-18 finds applications in various electronic circuits, including: - Voltage regulators - Overvoltage protection circuits - Signal clamping circuits - Voltage reference circuits

Detailed and Complete Alternative Models

• BZX84C12-HE3-18: Similar characteristics with a slightly different voltage rating
• BZX84B10-HE3-18: Lower voltage rating with similar characteristics
• BZX84B15-HE3-18: Higher voltage rating with similar characteristics

In conclusion, the BZX84B12-HE3-18 Zener diode is a crucial component in electronic circuits, providing precise voltage regulation and overvoltage protection. Its compact size and low leakage current make it suitable for various applications, although its limited power dissipation capability and susceptibility to overcurrent conditions should be considered in circuit design.

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