AT5231-4.8KDR AT5231-4.8KER AT5231-4.8KM5R AT5231-5.0KER AT5231H-3.9KER AT5231T-1.2KDR AT5231T-1.2KER AT5231T-1.2KGR AT5231T-1.2KM5R AT5231T-1.5KDR