The MMBTSC4098W is a bipolar transistor made by Semtech as a surface-mounted space saver in a SOT-323 package. It has an NPN type, a current gain of 82 (@1mA), 500nA collector-emitter saturation voltage, 300mV@10mA collector-emitter leakage current, 20V collector-emitter voltage, 200mW power dissipation, 50mA collector-base voltage, 6V emitter-base voltage, and 300MHz frequency. It has a maximum operating temperature of +150? (Tj). It is ROHS compliant.