ECS-200-18-4X-CKM

Crystal - 20.0000MHz ±10ppm - 18pF - 30 Ohm - ±10ppm -20°C to 70°C - Thru Hole - HC49/USX - 0.447" x 0.183" x 0.138" (11.35mm x 4.65mm x 3.50mm)