Impedance and rated current ranges: SMTBW104L 0.36~4.3uH 18.0~5.0A SMTBW104S 0.22~2.5uH 18.0~5.0A SMTBW105L 0.36~8.8uH 19.0~4.8A SMTBW105S 0.22~5.0uH 19.0~4.9A SMTBW105H 0.15~3.0uH 19.0~4.9A Test equipments: L : HP4284A LCR meter DCR : Milli-ohm meter. Electrical specifications at 25oC. Applications : Notebook /Desktop/server applications Battery Power equipment DC/DC converters Power supplier, etc