These heavy duty 600V diodes are used for restricting current flow isolation and clamping and have a max of 3 amps. 20 per Pack., 3 Amp diode, Great for restricting current flow isolation and clamping, Heavy-duty, 20 per package, N, N, N, N, N, N, Weight (lb)0.25, Height (in)7.5,Width (in)4,Depth (in)1