ECS-200-18-33-AGM-TR 20MHz晶振 ECS晶振 3225晶振 18PF ¥1.10 ECS-147.4-12-33-AGM-TR ECS晶振 14.7456M晶振 3225 12PF ¥1.10 ECS-240-8-33-AGN-TR 24MHz晶振 ECS晶振 3225晶振 8PF ¥1.10 27MHz晶振 3225晶振 ECS-270-18-33-AGM-TR ECS晶振 18PF ¥1.10 24.576M晶振 ECS-245.7-18-33-JEM-TR 3225封装 18PF 20PPM ¥1.10 ECS晶振 ECS-270-18-33-JGN-TR 27MHz晶振 3225 18PF 20PPM ¥1.10