Ohmite FC4T Series — Power Resistors | Metal Foil Low Value Chip:

The FC4T series from Ohmite provides a great TCR rating and low values. The 4 terminal construction is suited for current sense applications and helps deliver an accurate reading to the sensing circuit. The FC4T series is produced in a flip chip design providing outstanding specifications at a lower cost. The FC4T series carries a range of resistance from 0.005-0.100 ohms and a TCR down to 50ppm. Another great specification is the 0.5% tolerance in all values. Combining tolerance, values, and stability in a cost conscience package draws attention from a multitude of engineers.

The FC4T chip features four terminals, also known as a “Kelvin" configuration. This configuration enables current to be applied through two opposite terminals and a sensing voltage to be measured across the other two terminals, eliminating the resistance and temperature coefficient of the terminals for a more accurate current measurement. Ohmite’s proprietary Metal Foil technology offers an excellent Temperature Coefficient of Resistance (TCR) even for very low resistance values ( down to 50ppm).

Series Features:

Resistance 0.005-0.100

Operating Temp. Range -55°C to +155°C

Rated Power 0.5 watt

Resistance Tolerance 0.5% and 1% standard

Temperature Coefficient within ±50ppm, ±100ppm for 5mΩ

Coating Material Epoxy resin

Terminals Cu/Ni/Sn

Max. Current √(Max. power÷ Resistance value)

Res. of Electrodes <5mΩ