The BSS123NH6327XTSA1 is a N-channel metal oxide semiconductor field effect transistor (MOSFET) fabricated by Infineon. The device is part of the family of unipolar, 100V transistors designed to operate at 0.19A at a power dissipation of 0.5W. It is housed in a SOT23 package and provides an ideal level of performance for low power applications.