BDW94 Transistor: Encyclopedia Entry

Introduction

The BDW94 transistor is a crucial component in electronic circuits, belonging to the category of power transistors. This entry provides an overview of the BDW94 transistor, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Power Transistor
• Use: Amplification and switching of electrical signals in power applications
• Characteristics: High voltage and current capability, low saturation voltage
• Package: TO-220
• Essence: Power amplification and switching
• Packaging/Quantity: Typically sold in packs of 10 or more

Specifications

• Maximum Collector-Emitter Voltage (VCEO): 100V
• Maximum Collector Current (IC): 12A
• Power Dissipation (Pd): 90W
• DC Current Gain (hFE): 15 - 70
• Transition Frequency (ft): 2 MHz

Detailed Pin Configuration

The BDW94 transistor has a standard TO-220 package with three pins: 1. Base (B): Input terminal for controlling the flow of current 2. Collector (C): Terminal connected to the positive supply voltage 3. Emitter (E): Terminal connected to the ground or return path for the load

Functional Features

• High voltage and current capability
• Low saturation voltage
• Fast switching speed
• Good thermal stability

Advantages and Disadvantages

Advantages

• Suitable for high-power applications
• Low saturation voltage reduces power loss
• Fast switching speed enables efficient operation

Disadvantages

• Relatively low DC current gain compared to other transistors
• Limited frequency response for high-speed applications

Working Principles

The BDW94 operates based on the principles of bipolar junction transistors (BJTs). When a small current flows into the base terminal, it controls a larger current flowing between the collector and emitter terminals. This allows the transistor to amplify or switch electrical signals in power applications.

Detailed Application Field Plans

The BDW94 transistor finds extensive use in various power applications, including: - Audio amplifiers - Power supplies - Motor control circuits - Voltage regulators - Inverters and converters

Detailed and Complete Alternative Models

• BDW93
• BDW95
• TIP35C
• TIP36C
• 2N3055

In summary, the BDW94 transistor is a versatile power transistor with high voltage and current capabilities, making it suitable for a wide range of power applications. Its unique characteristics, functional features, and application field plans position it as a key component in electronic circuits.

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