The RMCF and RMCP Series from Stackpole Electronics have a part marking update that took effect April 1, 2025.
Parts that have E24 Values for the 0603 series will now have an underline on the part marking if they have a date code newer that April 1, 2025, denoting the parts are 1% tolerance. If the parts do not have an underline on the parts and they have a date code after April 1, 2025, then the parts have a 5% tolerance.
