The MMBT3906W is a PNP bipolar junction transistor (BJT) manufactured by Weitron Technology. It's designed for general purpose amplification and switching applications. This transistor is widely used in various electronic circuits due to its reliable performance and compact size.

Applications

• General purpose amplification
• Switching circuits
• Driver stages in amplifiers
• Linear mode applications
• Portable devices
• Signal processing circuits

Features

• PNP Polarity
• Low saturation voltage
• High current gain (hFE)
• Small Surface Mount Device (SMD) package (SOT-323)
• Halogen Free

Benefits

• Efficient amplification due to high current gain
• Fast switching speeds suitable for high-frequency applications
• Compact size allows for high-density circuit designs
• Reliable performance in diverse operating conditions
• Reduced power consumption in switching applications

Technical Specifications

The MMBT3906W features a collector-emitter voltage (VCEO) of -40V, a collector current (IC) of -200mA, and a power dissipation of 300mW. It boasts a typical current gain (hFE) of 100 to 300. The transition frequency (fT) is typically around 250 MHz, making it suitable for medium to high-frequency applications. The operating and storage junction temperature range is -55°C to +150°C. Its low saturation voltage ensures minimal voltage drop across the transistor when fully turned on, increasing circuit efficiency.

The transistor is packaged in a small SOT-323 package, making it suitable for surface mount technology (SMT) assembly, allowing for miniaturization of electronic devices. The device is Halogen free and RoHS compliant, making it environmentally friendly. It is also available in tape and reel packaging for automated assembly lines.