The ESA4.19430F20M25F with DIP Crystal Resonators 49S RoHS is a monolithic electronic part manufactured by MONEC. It is a 4-pin dual in-line package (DIP) crystal resonator with RoHS compliance. Its nominal frequency is 19430 Hz and it has a 20.000 MHz frequency tolerance. It features a maximum operating voltage of 5 VDC, a typical load capacitance of 18 pF, and a maximum shunt capacitance of 6 pF. The frequency aging rate is above -4/+10 ppm per year and the thermal stability is between -4/+8 ppm/°C. This quartz crystal resonator has a low series resistance of 400 ohms, an operating temperature range of -20 to +70 °C, and a maximum storage temperature of -45 to +85 °C. It offers precise control of frequencies and timing in electronic circuits such as watches, clocks, radio communication, and automotive applications.