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PMBT3904

Name: PMBT3904
Rating: 4.7 (12 reviews)

Bipolar Transistors - BJT

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概述

Description

PMBT3904 is a course designed to provide students with an understanding of project management principles and practices. It focuses on the methodologies, tools, and techniques essential for effective project planning, execution, and control. The course covers key topics such as project lifecycle, stakeholder management, risk assessment, and resource allocation. Students will learn to utilize project management software and frameworks, enabling them to analyze real-world case studies and apply theoretical concepts to practical situations. By the end of the course, participants should be equipped to manage projects efficiently and contribute positively to organizational goals. The course is suitable for aspiring project managers and professionals seeking to enhance their project management skills.

Features

The PMBT3904 is a NPN bipolar junction transistor (BJT) designed for general-purpose applications. Here are its key features:
1. Type: NPN transistor
2. Voltage Rating: Maximum collector-emitter voltage (Vce) of 40V.
3. Current Rating: Continuous collector current (Ic) of up to 200mA.
4. Power Dissipation: Maximum power dissipation of about 625mW.
5. Gain: High current gain (hFE) typically ranges from 100 to 300, providing efficient signal amplification.
6. Frequency Response: Transition frequency (fT) up to 250MHz, enabling high-frequency operation.
7. Package Type: Available in a variety of packages, commonly in SOT-23 and TO-92 for versatile application use.
8. Applications: Suitable for switching and amplification in audio, RF, and digital circuits.
These features make the PMBT3904 ideal for a wide range of electronic applications, including signal processing and low-power switching tasks.

Package

The PMBT3904 is commonly available in a surface-mount package type, specifically the SOT-23. This compact package is designed for efficient space utilization in electronic circuits.

Pinout

The PMBT3904 is a general-purpose NPN bipolar junction transistor (BJT) commonly used for switching and amplification applications. It comes in a TO-92 package and has three pins with the following functions:
1. Collector (C): The terminal where the output current flows out. It is connected to the load in switching applications.
2. Base (B): The control terminal that regulates the current flow between the collector and emitter. A small current at the base allows a larger current to flow from collector to emitter.
3. Emitter (E): The terminal where the output current flows in. It is usually connected to ground in common-emitter configurations.
The pin configuration (looking at the flat side of the TO-92 package) is: Emitter (left), Base (middle), Collector (right).

Manufacturer

The PMBT3904 is a type of NPN bipolar junction transistor (BJT) that is commonly manufactured by various semiconductor companies. One of the well-known manufacturers of the PMBT3904 is ON Semiconductor, a company recognized for its broad range of semiconductor solutions.
ON Semiconductor specializes in designing and manufacturing a variety of semiconductor components, including power management, analog, and logic devices, as well as sensors and other integrated circuit solutions. The company serves multiple markets such as automotive, industrial, and consumer electronics, positioning itself as a key player in the semiconductor industry.
In addition to ON Semiconductor, the PMBT3904 may also be produced by other companies, including Fairchild Semiconductor (now part of ON Semiconductor) and NXP Semiconductors, highlighting its widespread usage in electronic applications.

Application

The PMBT3904 is a low-power NPN transistor commonly used in various applications, including signal amplification, switching, and digital logic circuits. Its compact size makes it suitable for portable devices, audio electronics, and low-frequency applications. It can also be used in current regulation and as a driver for LEDs or other low-power loads in consumer electronics.

Equivalent

The PMBT3904 is a NPN bipolar junction transistor (BJT). Equivalent products include the 2N3904, BC547, and 2N2222. These transistors can be used in similar applications, but always check specific parameters like voltage, current, and gain for compatibility.