The 251M2501107MR12S from Matsuo Electric is a Power Capacitor with Capacitance 100 µF, Voltage Rating 2.5V, Equivalent Series Resistance (ESR) 4000 mOhm, Operating Temperature -55 to 125 Degree C. Tags: Surface Mount, Film Capacitor. More details for 251M2501107MR12S can be seen below.