The MMBTA42 with Transistors (NPN/PNP) SOT-23 RoHS manufactured by LGE is a high-performance, low-power, surface-mount transistor. It is designed to provide an effective way to switch, amplify, or otherwise affect electrical signals. The MMBTA42 is a three-terminal device with the collector, base, and emitter connections, each of which is labeled on the SOT-23 package. It is built using an NPN/PNP architecture, meaning that it allows the user to easily switch between NPN and PNP functionality. The transistor has a maximum collector current rating of 150mA, a maximum power dissipation of 500mW, and a collector-emitter voltage range of -20 to 70V. Additionally, the MMBTA42 is compliant with RoHS standards, making it an ideal choice for applications requiring high quality and reliability.