Diodes Incorporated MMBT3904-7 NPN Transistor

The MMBT3904-7 from Diodes Incorporated is a high-quality NPN bipolar junction transistor (BJT) designed for general-purpose amplifier and switching applications. This versatile component is a fundamental building block in electronic circuits, encapsulated in an SOT-23 surface-mount package, which provides a compact footprint suitable for high-density PCB designs.

Key Features

• Transistor Type: NPN - This device is designed to control the flow of current between the collector and emitter, making it ideal for a wide range of applications.
• Collector-Emitter Voltage (Vceo): 40V - The MMBT3904-7 can withstand substantial voltage across the collector-emitter terminals without breakdown.
• Collector Current (Ic Max): 200mA - It supports a maximum continuous collector current of 200mA, making it suitable for driving small loads.
• DC Current Gain (hFE): 100 to 300 - The transistor has a DC current gain within this range, ensuring efficient amplification in various circuits.
• Power Dissipation (Pd): 350mW - It can dissipate up to 350 milliwatts of power, which is adequate for its intended general-purpose applications.
• Operating and Storage Junction Temperature Range: -55°C to +150°C - This wide temperature range ensures reliable operation under extreme conditions.
• RoHS Compliant: The MMBT3904-7 meets the Restriction of Hazardous Substances (RoHS) directive, making it environmentally friendly and suitable for use in a variety of markets.

Applications

The MMBT3904-7 transistor is commonly used in a multitude of electronic circuits, including, but not limited to:

• Signal amplification
• Switching applications
• Linear amplification and oscillator circuits
• Voltage and current regulation systems
• Driver stages in audio amplifiers
• Low-power consuming portable devices

Diodes Incorporated's MMBT3904-7 offers the performance and reliability required by a diverse range of electronic applications. Its SOT-23 package is perfect for space-constrained applications, while its compliance with the RoHS directive ensures it is a responsible choice for manufacturers looking to minimize environmental impact.