Tin vs. Nickel Plating — Corrosion, Solderability, Cost

Choosing between tinned copper (TC) and nickel-plated copper (NPC) isn’t just about cost—it’s about performance, environment, and long-term reliability. The right finish depends on factors such as temperature, corrosion exposure, assembly method, and service life. In this guide, we break down the key differences between tin and nickel plating and share practical tips to help you specify the right conductor the first time.