BD239D-S Product Overview

Introduction

BD239D-S is a semiconductor device that belongs to the category of power transistors. It is commonly used in electronic circuits for amplification and switching applications due to its unique characteristics.

Basic Information Overview

• Category: Power Transistor
• Use: Amplification and Switching
• Characteristics: High voltage capability, high current capability, low saturation voltage
• Package: TO-220
• Essence: Silicon NPN Epitaxial Planar Transistor
• Packaging/Quantity: Typically sold in reels or tubes containing 50 to 100 units

Specifications

• Voltage Rating: 100V
• Current Rating: 2A
• Power Dissipation: 25W
• Transition Frequency: 30MHz
• Operating Temperature Range: -65°C to 150°C

Detailed Pin Configuration

The BD239D-S transistor has three pins: 1. Base (B): Input terminal for controlling the flow of current 2. Collector (C): Output terminal where the main current flows 3. Emitter (E): Terminal from which the current exits

Functional Features

• High voltage capability allows it to handle large loads
• Low saturation voltage minimizes power loss during operation
• Fast switching speed enables efficient performance in switching applications

Advantages

• Robust construction for reliable operation in demanding environments
• Low saturation voltage results in reduced power dissipation
• High current capability makes it suitable for power applications

Disadvantages

• Limited frequency response compared to specialized high-frequency transistors
• Relatively larger package size may not be suitable for compact designs

Working Principles

The BD239D-S operates based on the principles of bipolar junction transistors, where the flow of current between the collector and emitter is controlled by the base current. When a small current is applied to the base, it modulates the larger current flowing between the collector and emitter, allowing for amplification or switching functions.

Detailed Application Field Plans

• Amplification: Used in audio amplifiers, power supplies, and instrumentation circuits
• Switching: Employed in motor control, lighting control, and power management systems

Detailed and Complete Alternative Models

1. BD237
2. BD238
3. BD240
4. BD241

In conclusion, the BD239D-S power transistor offers high voltage and current capabilities, making it suitable for various amplification and switching applications. Its robust design and functional features make it a reliable choice for electronic circuit designers.

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