ECS ECX-.327-CDX-2096 32.768KHz SMD Tuning Fork Crystal features a compact 3.2mm x 1.5mm x 0.9mm ceramic package. This ultra-miniature crystal offers a frequency of 32.768KHz and a low ESR of 50KΩ maximum. The series has a frequency tolerance of ±5ppm. ECS ECX-.327-CDX-2096 32.768KHz SMD Tuning Fork Crystal is ideal for mobile devices, real-time clocks, and wireless applications.