LCS Current Sense Thin Film Chip Resistors Welwyn / TT Electronics LCS Current Sense Thin Film Chip Resistors provide accurate current sensing in electronic systems. Welwyn LCS resistors feature ±0.5% and ±50ppm/°C precision. LCS resistors feature anti-sulfur construction and offer a 0.1 to 1.0W power rating at +70°C. The series is available in five case sizes from 0603 to 2512.