Thanks to ON Semiconductor, your circuit can handle high levels of voltage using the NPN SMMBT5551LT1G general purpose bipolar junction transistor. This bipolar junction transistor"s maximum emitter base voltage is 6 V. Its maximum power dissipation is 300 mW. Tape and reel packaging will encase this product during shipment, in order to ensure safe delivery and enable quick mounting of components. It has a maximum collector emitter voltage of 160 V and a maximum emitter base voltage of 6 V. This bipolar junction transistor has an operating temperature range of -55 °C to 150 °C.