The JANTX2N4931U4 is a voltage-controlled silicon NPN transistor manufactured by Microchip. It features a maximum collector-emitter voltage of 175 V, a maximum collector current of 1.6 A, and a maximum power dissipation of 2 watts. It also has an isolation voltage of 1,500 VDC, a collector-emitter saturation voltage of 0.3 V, a transition frequency of 10 MHz, a gain-bandwidth product of 8 kHz, and a storage temperature range of -65°C to +150°C. It is suitable for applications such as amplifier and switching circuits, and is available in TO-92, SOT-223 and TO-220 packages.