The MMST3904-7 from Diodes Incorporated is a high-quality NPN small-signal transistor designed for general-purpose amplifier and switching applications. This versatile transistor is housed in a compact SOT-323 package, making it suitable for surface-mount technology (SMT) and ideal for use in space-constrained applications.

Key Features

• High Current Gain: The MMST3904-7 boasts a high current gain (hFE), typically around 100 to 300, providing efficient amplification of electrical signals in various electronic circuits.
• Low Voltage Operation: With a collector-emitter voltage (VCEO) of 40V, it operates effectively at low voltage levels, making it compatible with a range of electronic devices.
• Collector Current: It can handle a continuous collector current (IC) of up to 200mA, suitable for driving small loads within a circuit.
• High Transition Frequency: Featuring a high transition frequency (fT) of 300MHz, this transistor is capable of operating at high frequencies, which is essential for RF and high-speed signal processing applications.
• Thermal Performance: The MMST3904-7 is designed to dissipate heat effectively, ensuring reliable performance even under conditions of high ambient temperature or high power dissipation.

Applications

The MMST3904-7 transistor is versatile and can be used in a wide range of applications, including:

• General-purpose amplification
• Switching circuits
• Audio amplifiers
• Signal processing
• Driver stages in hi-fi amplifiers and television circuits

Quality and Reliability

Diodes Incorporated is committed to providing high-quality products that meet rigorous industry standards. The MMST3904-7 transistor is no exception, undergoing stringent testing to ensure its performance and reliability. It is RoHS compliant, ensuring that it meets environmental standards by being free from hazardous substances.

With its combination of efficiency, thermal performance, and high-frequency operation, the MMST3904-7 is an excellent choice for designers looking for a reliable NPN transistor for their electronic projects.