T494 Industrial-Grade Tantalum Capacitors KEMET T494 Industrial-Grade Tantalum Capacitors offer a lower ESR than the T491 series and are designed for highly automated surface-mount processes and equipment. KEMET T494 capacitors offer 100% matte tin as a standard termination and provide excellent wetting characteristics and compatibility with surface-mount solder systems. Other features include capacitance values of 0.1µF to 1,000µF, a voltage rating of 2.5VDC to 50VDC, low-profile cases, and an operating temperature range -55°C to +125°C.