FC4T Metal Foil Current Sense Resistors Ohmite FC4T Metal Foil Current Sense Resistors are designed with four terminals, also known as a Kelvin configuration. The Kelvin configuration allows the current to be applied through two opposite terminals. These FC4T resistors offer a low resistance value of 50ppm and excellent temperature coefficient of resistance (TCR). The series is available in a 1206 package size, 0.5W power rating, and 0.005Ω to 0.100Ω resistance range. Ohmite FC4T Metal Foil Current Sense Resistors operate in a -55°C to +155°C temperature range. The resistors are produced in a flip-chip design to provide cost-effective yet superior specifications.