BUL128: Product Overview and Specifications

Introduction

The BUL128 is a power transistor belonging to the category of electronic components. It is widely used in various electronic applications due to its specific characteristics and functional features.

Basic Information Overview

• Category: Power Transistor
• Use: Amplification and switching in electronic circuits
• Characteristics: High power handling capacity, low saturation voltage
• Package: TO-220
• Essence: Silicon NPN epitaxial planar type
• Packaging/Quantity: Typically available in reels of 1000 units

Specifications

• Maximum Collector-Emitter Voltage (Vce): 400V
• Maximum Collector Current (Ic): 8A
• Power Dissipation (Pd): 80W
• Transition Frequency (ft): 4MHz
• Operating Temperature Range: -65°C to 150°C

Detailed Pin Configuration

The BUL128 power transistor has a standard TO-220 package with three leads: 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 power amplification capability
• Low saturation voltage for efficient switching
• Fast switching speed
• Robust construction for reliable operation

Advantages and Disadvantages

Advantages

• High power handling capacity
• Low saturation voltage reduces power loss
• Suitable for high-frequency applications

Disadvantages

• Relatively larger package size compared to SMD alternatives
• Limited operating temperature range

Working Principles

The BUL128 operates based on the principles of bipolar junction transistors. When a small current flows into the base terminal, it controls a much larger current between the collector and emitter terminals, allowing for amplification and switching functions in electronic circuits.

Detailed Application Field Plans

The BUL128 finds extensive use in the following applications: - Audio amplifiers - Switching power supplies - Motor control circuits - Electronic ballasts

Detailed and Complete Alternative Models

Some alternative models to BUL128 include: - TIP31C - 2N3055 - MJ15003

In conclusion, the BUL128 power transistor offers high power handling capabilities and efficient switching characteristics, making it a versatile component in various electronic applications.

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