The T551B127K040AH from KEMET Corporation is a Power Capacitor with Capacitance 120 uF, Voltage Rating 40 V, Equivalent Series Resistance (ESR) 120 mOhm, Mass 3.63 Gram, Operating Temperature -55 to 105 Degree C. Tags: Through Hole, Polymer Capacitor. More details for T551B127K040AH can be seen below.