Both the ceramic and tantalum capacitors feature derating characteristics under operating conditions such as temperature, overvoltage, ESR, and leakage current. Tantalum capacitors' derating is provided in voltage, and ceramic capacitors' derating is provided in capacitance values. Derating for tantalum capacitors is based on the material that the capacitors are constructed with. Design engineers should refer to ROHM's tantalum capacitor datasheet for derating information when transitioning from ceramic capacitors to tantalum capacitors.