FMB3904 Transistor

Product Overview

Category:

The FMB3904 transistor belongs to the category of small signal NPN bipolar junction transistors.

Use:

It is commonly used for amplification and switching of electronic signals in various electronic circuits.

Characteristics:

Small size
Low power consumption
High gain
Fast switching speed

Package:

The FMB3904 transistor is typically available in a TO-92 package.

Essence:

This transistor is essential for amplifying weak electronic signals and controlling the flow of current in electronic devices.

Packaging/Quantity:

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

Specifications

Maximum Collector-Base Voltage: 60V
Maximum Collector Current: 200mA
Power Dissipation: 625mW
Transition Frequency: 300MHz
Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

The FMB3904 transistor has three pins: 1. Emitter (E) 2. Base (B) 3. Collector (C)

Functional Features

Amplification of weak electronic signals
Switching function in electronic circuits
High input impedance

Advantages

Small size allows for use in compact electronic devices
Low power consumption
High gain for signal amplification

Disadvantages

Limited maximum collector current compared to other transistors
Sensitive to temperature variations

Working Principles

The FMB3904 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.

Detailed Application Field Plans

The FMB3904 transistor finds applications in various electronic circuits, including: - Audio amplifiers - Signal processing circuits - Switching circuits - Oscillator circuits

Detailed and Complete Alternative Models

Some alternative models to the FMB3904 transistor include: - 2N3904 - BC547 - 2SC945 - PN2222A

In conclusion, the FMB3904 transistor is a versatile component that finds widespread use in electronic circuits due to its small size, high gain, and low power consumption. Its applications range from audio amplifiers to signal processing circuits, making it an essential part of modern electronic devices.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací FMB3904 v technických řešeních

What is FMB3904?
- FMB3904 is a common NPN bipolar junction transistor (BJT) widely used in electronic circuits for amplification and switching applications.
What are the typical applications of FMB3904?
- FMB3904 is commonly used in audio amplifiers, signal amplification circuits, voltage regulators, and digital logic circuits.
What are the key electrical characteristics of FMB3904?
- The key electrical characteristics of FMB3904 include a maximum collector current of 200mA, a maximum collector-base voltage of 60V, and a maximum power dissipation of 625mW.
How do I identify the pinout of FMB3904?
- FMB3904 typically has three pins: the emitter, base, and collector. The flat side of the transistor package usually corresponds to the emitter pin.
Can FMB3904 be used for high-frequency applications?
- Yes, FMB3904 can be used for moderate to high-frequency applications due to its relatively fast switching speed and low capacitance.
What are some common alternatives to FMB3904?
- Common alternatives to FMB3904 include 2N3904, BC547, and PN2222A, which have similar electrical characteristics and pinouts.
How should FMB3904 be biased in a circuit?
- FMB3904 is typically biased in the active region by applying a suitable base current to allow it to operate as an amplifier or switch.
What are the temperature limitations of FMB3904?
- FMB3904 is rated for operation within a temperature range of -55°C to 150°C, making it suitable for a wide range of environmental conditions.
Can FMB3904 be used in low-power applications?
- Yes, FMB3904 is suitable for low-power applications due to its low saturation voltage and low leakage current.
Are there any specific layout considerations when using FMB3904 in a PCB design?
- It's important to minimize lead lengths, provide adequate heat sinking if necessary, and ensure proper isolation between the transistor and other components to avoid interference.

Please let me know if you need further information on any of these questions!