2N4858UB

Product Overview

Use

This product is commonly used in electronic circuits for amplification and switching purposes.

Characteristics

High gain
Low noise
Small package size

Package

The 2N4858UB is typically available in a TO-92 package.

Essence

The essence of the 2N4858UB lies in its ability to provide reliable amplification and switching capabilities in various electronic applications.

Packaging/Quantity

The 2N4858UB is usually packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

Maximum Power Dissipation: 350mW
Collector-Base Voltage: 30V
Collector Current: 100mA
Transition Frequency: 400MHz
Noise Figure: 3dB

Detailed Pin Configuration

The 2N4858UB features a three-pin configuration: 1. Base 2. Emitter 3. Collector

Functional Features

High voltage gain
Low noise performance
Wide frequency response

Advantages

Suitable for low-power applications
Compact package size
Reliable performance in amplification circuits

Disadvantages

Limited power handling capability
Sensitive to temperature variations

Working Principles

The 2N4858UB operates based on the principles of bipolar junction transistors, utilizing the control of current flow for amplification and switching functions.

Detailed Application Field Plans

The 2N4858UB finds application in various electronic systems, including: - Audio amplifiers - Signal processing circuits - Oscillator circuits

Detailed and Complete Alternative Models

Some alternative models to the 2N4858UB include: - 2N4858 - 2N4859 - 2N4860

In conclusion, the 2N4858UB is a versatile transistor that offers high gain and low noise characteristics, making it suitable for a wide range of electronic applications. Its compact package and reliable performance make it a popular choice for amplification and switching needs in diverse electronic systems.

[Word Count: 297]

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 2N4858UB v technických řešeních

What is the 2N4858UB transistor used for?
- The 2N4858UB transistor is commonly used for amplification and switching applications in electronic circuits.
What are the key features of the 2N4858UB transistor?
- The 2N4858UB transistor features high voltage capability, low input and output capacitance, and low on-resistance.
What are the typical applications of the 2N4858UB transistor?
- Typical applications include audio amplifiers, signal processing circuits, and power management systems.
What is the maximum voltage and current rating for the 2N4858UB transistor?
- The maximum voltage rating is typically around 30V, and the maximum continuous current rating is around 200mA.
How does the 2N4858UB compare to similar transistors in terms of performance?
- The 2N4858UB offers comparable performance to other transistors in its class, with a good balance of voltage, current, and frequency capabilities.
What are the recommended operating conditions for the 2N4858UB transistor?
- The recommended operating conditions include a specified range of voltage, current, and temperature to ensure optimal performance and reliability.
Are there any specific layout or thermal considerations when using the 2N4858UB in a circuit?
- It's important to consider proper heat sinking and layout to manage thermal dissipation and ensure stable operation, especially in high-power applications.
Can the 2N4858UB be used in both analog and digital circuits?
- Yes, the 2N4858UB can be used in both analog and digital circuits, making it versatile for a wide range of applications.
What are the common failure modes of the 2N4858UB transistor?
- Common failure modes include overvoltage stress, overcurrent conditions, and excessive junction temperatures leading to thermal breakdown.
Where can I find detailed specifications and application notes for the 2N4858UB transistor?
- Detailed specifications and application notes can be found in the manufacturer's datasheet and technical documentation, providing comprehensive information for design and implementation.