1. Excellent solderability and high stability in environment 2. Excellent long time aging stability 3. High accuracy in resistance and B-constant 4. Flow / Reflow soldering possible 5. Same B-Constant in the same resistance in the three sizes (0805 size / 0603 size / 0402 size) Easy to use smaller size in the circuits 6. Lead is not contained in the product. 7. UL/cULcertified product.(UL1434, File No. E137188)