EXB-U Anti-Sulfur Resistors Panasonic EXB-U Anti-Sulfur Resistors are array type devices that achieve high resistance to sulfurization by adopting an Ag-Pd-based inner electrode. EXBU2 (0402 Array) and EXBU3 (0603 Array) Chip Resistor Arrays improve placement efficiency by two, four, or eight times that of flat type chip resistors. Panasonic EXB-U devices meet IEC 60115-9, JIS C 5201-9, and EIAJ RC-2129 standards. These resistor arrays are TS 16949 certified and AEC-Q200 applicable.