Complex sentence: In 1991 Panasonic launched its polymer Al-e-cap series "SP-Cap", These e-caps used PPy polymer electrolyte and reached ESR values that were directly comparable to ceramic multilayer capacitors (MLCCs).
Split into simpler sentences: In 1991 Panasonic launched its "SP-Cap", a polymer Al-cap. These used polymer electrolytes to achieve ESR values that were directly comparable to ceramic multilayer capacitors (MLCCs).