The ECS INC. INTERNATIONAL part ECS-.327-12.5-17X-TR is a crystal oscillator with a frequency of 32.768KHz and an accuracy of ±20ppm. It has a capacitance of 12.5pF and a resistance of 50kohm. This crystal operates in a wide temperature range of -40°C to 85°C. It is a surface mount device (SMD) with a 4-SOJ package and a 5.50mm pitch. The dimensions of this crystal are 0.315x 0.150 (8.00mm x 3.80mm). It is a reliable and compact component suitable for various applications.