Bourns® PWR4412 and PWR4413 Series consist of low ohmic wire with a TCR of ±20 PPM which is formed, cut and welded to tin-plated copper terminations. The terminations are 1mm in diameter and can carry current up to 78A. To ensure accurate measurements which could be distorted by the copper which has a very high TCR, it is important to make measurements from the designated measurement points.