2N4898 Transistor

Product Overview

The 2N4898 is a silicon NPN power transistor that belongs to the category of electronic components. It is commonly used in amplification and switching circuits due to its high current and voltage capabilities. The transistor exhibits characteristics such as high power dissipation, low saturation voltage, and fast switching speed. It is typically available in a TO-220 package and is widely recognized for its reliability and performance.

Package and Quantity

The 2N4898 transistor is usually packaged in a TO-220 case, which provides efficient heat dissipation. It is commonly sold in quantities of one or more, depending on the supplier.

Specifications

• Maximum Collector-Emitter Voltage: 80V
• Maximum Collector Current: 7A
• Power Dissipation: 50W
• Transition Frequency: 4MHz
• Operating Temperature Range: -65°C to 200°C

Detailed Pin Configuration

The 2N4898 transistor has three pins: the emitter (E), base (B), and collector (C). The pin configuration is as follows: - Emitter (E): Pin 1 - Base (B): Pin 2 - Collector (C): Pin 3

Functional Features

The 2N4898 transistor offers high current gain and low saturation voltage, making it suitable for power amplification and switching applications. Its fast switching speed enables efficient control of high-power loads, while its rugged construction ensures reliable performance in demanding environments.

Advantages and Disadvantages

Advantages

• High power dissipation capability
• Low saturation voltage
• Fast switching speed
• Rugged construction for reliability

Disadvantages

• Limited maximum collector-emitter voltage
• Relatively high transition frequency

Working Principles

The 2N4898 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 amplification effect allows the transistor to regulate high-power signals in various electronic circuits.

Detailed Application Field Plans

The 2N4898 transistor finds extensive use in power amplification, motor control, voltage regulation, and switching applications. It is commonly employed in audio amplifiers, power supplies, motor drivers, and voltage regulators due to its high current and voltage handling capabilities.

Detailed and Complete Alternative Models

Several alternative models to the 2N4898 transistor include the TIP31, TIP32, MJE3055, and MJ15003. These alternatives offer similar power handling capabilities and can be used interchangeably in many applications where the 2N4898 is utilized.

In conclusion, the 2N4898 transistor is a versatile electronic component with high power dissipation, fast switching speed, and reliable performance. Its application spans across various electronic circuits, making it an essential component in power amplification and switching systems.

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