TIP145G

Introduction

The TIP145G is a power transistor that belongs to the category of bipolar junction transistors (BJTs). It is commonly used in electronic circuits for amplification and switching applications due to its high voltage and current capabilities. This entry provides an overview of the TIP145G, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Bipolar Junction Transistor (BJT)
• Use: Amplification and switching in electronic circuits
• Characteristics: High voltage and current capabilities
• Package: TO-220
• Essence: Power transistor for high-power applications
• Packaging/Quantity: Typically available in reels or tubes containing multiple units

Specifications

• Collector-Emitter Voltage (VCEO): 60V
• Collector-Base Voltage (VCBO): 80V
• Emitter-Base Voltage (VEBO): 5V
• Collector Current (IC): 10A
• Power Dissipation (Pd): 65W
• Transition Frequency (ft): 2MHz
• Operating Temperature Range: -65°C to 150°C

Detailed Pin Configuration

The TIP145G transistor has a standard TO-220 package with three pins: 1. Collector (C): Connected to the positive supply voltage 2. Base (B): Input control terminal 3. Emitter (E): Connected to the ground or load

Functional Features

• High voltage and current capability
• Low saturation voltage
• Fast switching speed
• Robust construction for reliable performance in high-power applications

Advantages and Disadvantages

Advantages

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

Disadvantages

• Higher heat dissipation due to high power handling capability
• Larger physical size compared to low-power transistors

Working Principles

The TIP145G operates based on the principles of bipolar junction transistors. When a small current flows into the base terminal, it controls a larger current flow between the collector and emitter terminals. This allows the transistor to amplify signals or switch high-power loads in electronic circuits.

Detailed Application Field Plans

The TIP145G is widely used in various applications, including: - Audio amplifiers - Power supplies - Motor control circuits - Switching regulators - Electronic ballasts

Detailed and Complete Alternative Models

Some alternative models to the TIP145G include: - TIP142G - TIP146G - MJL21193 - MJL21194

In conclusion, the TIP145G is a versatile power transistor suitable for high-power amplification and switching applications in electronic circuits. Its robust construction, high voltage and current capabilities, and fast switching speed make it a popular choice among electronics enthusiasts and professionals.

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