Patent ID: 7443267

Claim:
A low-pass filter comprising: a capacitor including a dielectric body having first and second faces opposing each other, and first to third internal electrodes arranged within the dielectric body; first and second varistors arranged on the first face; a resistor arranged on the first face; and first to third external electrodes arranged on the second face; wherein the first internal electrode is arranged so as to be connected to the third external electrode physically and electrically while extending in a direction parallel to the opposing direction of the first and second faces; wherein the second internal electrode is arranged so as to be connected to the second external electrode physically and electrically while at least a portion of the second internal electrode opposes the first internal electrode through at least a portion of the dielectric body; wherein the third internal electrode is arranged so as to be connected to the first external electrode physically and electrically while at least a portion of the third internal electrode opposes the first internal electrode through at least a portion of the dielectric body; wherein the first varistor is connected in parallel to a capacitor constituted by the first and third internal electrodes; wherein the second varistor is connected in parallel to a capacitor constituted by the first and second internal electrodes; and wherein the resistor is connected electrically to the second and third internal electrodes.