The CSTLS27M0X51-A0 is a surface mount low ESR type ceramic capacitor from Murata. It is an ultra-small capacitive component that is designed for bypass and decoupling applications, with a voltage rating of up to 6.3VDC, capacitance of 0.039µF, and low ESR of 0.004O. The capacitor has a variety of features such as a low profile design, high temperature capability, and excellent solderability. The capacitor is rated for use up to 125°C and is recommended for reflow soldering.