Amathuluzi ahambisana nemfuneko yokuhlolwa kwegagasi elihlanganisiwe lomkhiqizo we-SPD II wokusabalalisa amandla kagesi aphansi, okuvumela ukukhiqiza amandla kagesi (1.2/50μs) kanye nomfutho wamanje (8/20μs), usetshenziselwa ukuhlolwa kwebanga lesi-III kanye nokuhlola umkhawulo kagesi. ye-SPD nezingxenye.