MMBT3904,215 NPN Transistor: The Ultimate High-Performance BJT for Modern Electronics

The MMBT3904,215 from Nexperia USA Inc. is a premium NPN bipolar junction transistor (BJT) engineered for superior performance in a wide range of discrete semiconductor applications. As part of the Discrete Semiconductor Products category, this transistor is specifically designed for engineers and designers who demand reliability, efficiency, and cost-effectiveness in their electronic projects. Whether you're working on amplification circuits, switching applications, or high-frequency signal processing, the MMBT3904,215 delivers exceptional results.

Comprehensive Features and Specifications

1. NPN Transistor Structure

The MMBT3904,215 is an NPN transistor, which means it operates by allowing current to flow from the collector to the emitter when a small input current is applied to the base. This makes it highly versatile for applications such as signal amplification, switching, and digital logic circuits.

2. High Current Handling: 200mA Collector Current

With a maximum collector current (Ic) of 200mA, this transistor is perfect for low to medium-power applications. It is commonly used in audio amplifiers, LED drivers, and power management circuits where moderate current handling is required.

3. Robust Voltage Tolerance: 40V Collector-Emitter Breakdown

The collector-emitter breakdown voltage (Vce) of 40V ensures reliable operation in circuits with higher voltage requirements. This makes the MMBT3904,215 suitable for power supplies, motor control, and industrial automation systems.

4. Low Saturation Voltage: 300mV @ 5mA, 50mA

The saturation voltage (Vce) is just 300mV at a base current of 5mA and a collector current of 50mA. This low saturation voltage minimizes power loss, making the transistor highly efficient for switching applications.

5. Ultra-Low Leakage Current: 50nA (ICBO)

With a collector cutoff current (ICBO) of only 50nA, the MMBT3904,215 ensures minimal leakage, enhancing performance in low-power and battery-operated devices.

6. High DC Current Gain: hFE of 100 @ 10mA, 1V

The DC current gain (hFE) of 100 at 10mA collector current and 1V collector-emitter voltage ensures excellent signal amplification, making it ideal for audio and sensor circuits.

7. Power Dissipation: 250mW

The maximum power dissipation of 250mW allows the transistor to handle moderate power levels without overheating, ensuring long-term reliability.

8. High-Frequency Operation: 300MHz Transition Frequency

The transition frequency (fT) of 300MHz enables the MMBT3904,215 to perform exceptionally well in RF and high-speed switching applications, such as wireless communication and signal processing.

9. Wide Operating Temperature: Up to 150 C (TJ)

With a maximum junction temperature of 150 C, this transistor is built to withstand harsh environments, making it suitable for automotive, industrial, and consumer electronics.

10. Surface-Mount Design: SOT-23-3 Package

The SOT-23-3 package is compact and ideal for surface-mount technology (SMT), enabling seamless integration into modern PCB designs for space-constrained applications.

Applications of the MMBT3904,215

The MMBT3904,215 is widely used in:

• Audio Amplifiers: Provides clear signal amplification for speakers and headphones.
• Switching Circuits: Efficiently controls power in digital and analog systems.
• RF Applications: Supports high-frequency signal processing in wireless devices.
• Logic Buffers: Drives higher current loads in microcontroller and FPGA circuits.
• Power Management: Used in voltage regulators and DC-DC converters.

Why Choose the MMBT3904,215?

The MMBT3904,215 stands out due to its high performance, reliability, and versatility. Its combination of low saturation voltage, high current gain, and excellent thermal characteristics makes it a top choice for engineers. Additionally, its availability in multiple packages (SOT-23-3, TO-236AB) ensures compatibility with various design requirements.

Conclusion

The MMBT3904,215 NPN transistor from Nexperia is a high-quality component that excels in amplification, switching, and high-frequency applications. Its robust specifications, compact design, and wide operating range make it indispensable for modern electronics. Whether you're a professional engineer or a hobbyist, the MMBT3904,215 is a reliable solution for your next project.

For purchasing options or technical support, visit our website today. We offer competitive pricing, fast shipping, and expert assistance to help you achieve your design goals.