The MBRF1040CT is an NPN Transistor made by Good-Ark. It is an Epitaxial planar type construction and features a Maximum Collector-Base Voltage of 600V and a Maximum Collector-Emitter Voltage of 400V. It has a Minimum Collector current of 0.5A and a Maximum DC Current Gain of 700. The package is a 3-pin TO-220F RoHS leaded. This device is useful for high-speed switching applications with medium to low power.