T491D106K025AT is a Kemet brand ceramic chip capacitor manufactured with a low-loss X7R dielectric material. It has a 0.1µF capacitance, a 25V rated voltage, and a ±10% tolerance. The unit measures 4.7mm in length and 2.2mm in diameter. It is typically used for power supply decoupling, bypassing, and smoothing applications in electronic circuits.