"6540R304, REFERENCE IS 6540-13-2-36; 0 6540R318 1.12 A/PH 2 OHM 6600R174 OEM 6600R279 6630R289 820R011 820R018 820R029 8366R001 OEM!! 8660R050 OEM 9103R002 discontinued, no replacement;Mikroschrittmotorendstufe / micro stepping driver Art.-Nr. 9103R002 (Typ / type: SMD 9103) 8660R016 OEM for Sidel 6540R522 OEM PRODUCT, CANT OFFER!!!; 8366R001/AL171909 5846R341 OEM!!