公开(公告)号：US20250069819A1

公开(公告)日：2025-02-27

申请号：US18726790

申请日：2023-01-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUTA MATSUKI ,  YOUHEI ASHIMORI ,  TATSUJI AOYAMA ,  SHINTARO WAKIYAMA

IPC: H01G9/10 ,  H01G9/00 ,  H01G9/012 ,  H01G9/15

Abstract: An electrolytic capacitor includes a winding portion, an anode lead member, and a cathode lead member. The winding portion includes an anode foil and a cathode foil that are wound. The anode lead member is connected to the anode foil and extends in a first direction. The cathode lead member is connected to the cathode foil and extends in the first direction. The winding portion has a shape viewed in the first direction, the shape including a first peripheral region and a second peripheral region that are opposed to each other in a second direction intersecting the first direction, and a third peripheral region and a fourth peripheral region that are opposed to each other in a third direction intersecting the first direction and the second direction. The length of the winding portion in the third direction is larger than the length of the winding portion in the second direction. The anode lead member and the cathode lead member are arranged point-symmetrically with respect to a center of the winding portion when viewed in the first direction.