DiodesZetex Small Signal NPN Transistor 200 mA 40 V 3-Pin SOT-323 MMST3904-7-F

The DiodesZetex MMST3904-7-F is a small signal NPN bipolar transistor designed for use in a wide variety of electronic and industrial applications requiring moderate current and voltage handling capabilities. Packaged in the compact SOT-323 surface mount format with three pins, this transistor is suitable for efficient assembly on printed circuit boards.

This transistor supports a maximum collector current of 200 mA and collector-emitter voltage rating of 40 V, making it ideal for low to moderate power switching and amplification tasks in consumer electronics, automotive circuits, and industrial controls. The device features a single transistor configuration with NPN polarity and a minimum DC current gain (hFE) of 30 to ensure reliable signal amplification.

It is capable of dissipating up to 200 mW of power, allowing it to operate effectively in circuits where energy consumption remains low to moderate. The device can function within a wide operating temperature range from -55°C to 150°C, which supports its use in harsh environmental conditions including automotive and industrial electronics. The maximum transition frequency of 300 MHz further enables its application in high-frequency analog and switching circuits.

Compliance with the automotive standard AEC-Q101 guarantees high reliability and adherence to strict quality and performance tests, making it suitable for rigorous automotive electronic systems. The physical size of the transistor, measuring 2.2 mm in length and width, and 1.1 mm in height, facilitates integration in compact and miniaturized electronic devices.

Maximum DC collector current: 200 mA. Collector-emitter voltage rating: 40 V. Compact 3-pin SOT-323 surface mount package. Single NPN transistor configuration. Power dissipation up to 200 mW. Minimum DC current gain of 30.

High transition frequency of 300 MHz. Wide operating temperature range from -55°C to 150°C. Automotive standard AEC-Q101 certified. Compact device dimensions 2.2 mm x 2.2 mm x 1.1 mm.

This Transistor is widely used in industrial electronics, automotive control systems, telecommunications, and consumer electronic devices. It provides reliable switching and amplification while maintaining efficiency in compact circuit designs. Discover more DiodesZetex semiconductors and components at EnvMart to support your electronic manufacturing and prototyping needs.