Product Overview: PMBT3904 from NXP Semiconductors

The PMBT3904 is a small-signal, general-purpose NPN bipolar junction transistor (BJT) designed and manufactured by NXP Semiconductors. This versatile and reliable transistor is housed in a compact SOT-23 plastic package, making it well-suited for automated surface mount assembly processes and applications where space is at a premium.

As a fundamental building block in electronic circuits, the PMBT3904 is engineered to deliver high performance in a wide range of applications. It is commonly used for amplification and switching purposes, and can be found in consumer electronics, industrial systems, and communication devices, among others.

Key Features:

• Transistor Type: NPN - The PMBT3904 is an NPN transistor, which means it is designed to pass electrons from the emitter to collector and is typically operated with the emitter at a lower voltage than the collector.
• High Current Gain: The device features a high current gain (hFE), typically in the range of 100 to 300, providing effective amplification of the input signal.
• Low Voltage Operation: It operates at a maximum collector-emitter voltage (VCEO) of 40V, making it suitable for low-voltage applications.
• Collector Current: The PMBT3904 supports a continuous collector current (IC) of up to 200 mA, allowing it to control a variety of loads.
• Power Dissipation: With a total power dissipation (Ptot) of 300 mW, the PMBT3904 can handle moderate levels of power in its compact form factor.
• Operating Temperature: The device is designed to operate within a temperature range of -65°C to +150°C, ensuring reliability across diverse environmental conditions.

Applications:

The PMBT3904's versatility allows it to be used in a myriad of applications, including but not limited to:

• Signal amplification in audio and video equipment
• Switching operations in power management circuits
• Driver stages in amplifiers and oscillators
• Digital logic circuits
• Interface circuits between different voltage levels

With its combination of compact size, high performance, and NXP's reputation for quality, the PMBT3904 is an excellent choice for designers looking to optimize their circuit designs for efficiency and reliability.