ECS-160.003-18-5PTRCRYSTAL 16.000312MHZ 18PF SMD|ECS INC|Lead All|RoHS Mixed ECS-160.003-18-5PX-TR ECS-160.003-18-5PTRCRYSTAL 16.000312MHZ 18PF SMD|ECS INC (VA)|Lead All|RoHS Mixed ECS-160.003-18-5PX-TR