The C4AQUBU4180A1XJ is a Kemet High Voltage MOSFET Transistor, rated for 40V VDSS, IdS = 15A, and 28.8 mOhm Rdson. It is a through-hole packaged device, featuring an N-channel, unipolar, enhancement mode transistor suitable for high voltage DC to DC conversion circuits, as well as other automotive, lighting and consumer switch mode applications. This device provides excellent power efficiency, ruggedness and low on-resistance resistance.