SiA427DJ 8V TrenchFET® Power MOSFETs Vishay Semiconductors SiA427DJ 8V TrenchFET® Power MOSFETs have the lowest on-resistance for a p-channel device in the thermally enhanced PowerPAK® SC-70 2mm by 2mm footprint area. The on-resistance of the SiA427DJ is up to 47% lower than the closest competing p-channel device. The 1.2V low on-resistance rating of SiA427DJ TrenchFET power MOSFETs makes them ideal for low bus voltages.