Topics
- 2025-09-30 ECQUA and ECQUB series have been discontinued.
- 2025-03-31 ECPU(A) series have been discontinued.
- 2025-03-03 The ECWU(X), ECWU(C), and ECWU(V16) series are NOT Recommended for New Design.
- 2023-09-29 Production of ECQE(F) series (15 product numbers) has been discontinued.
- 2023-06-01 ECQUA, ECQUB, ECPU(A) series are Not Recommended for New Design.
- 2022-10-31 TSome parts of ECQE(F), ECQUA series are Not Recommended for New Design.
- 2022-04-28 The design support tool "Film capacitor selection tool" has been posted.
- 2022-02-09 ECQUG, ECQUL and ECQUV series has been discontinued.
- 2021-11-29 The video of "Fuse Function Technology of Panasonic Film Capacitors" has been posted.
- 2020-07-31 The ECQUB series has been commercialized.
- 2020-04-21 The part number of ECQUA has been added (96 part number).
- 2019-12-02 ECQUL, ECQUG and ECQUV are Not Recommended for New Design.
- 2019-07-31 The part number of ECWFD series has been added (32 part number).
- 2019-05-31 The part number of ECWFE has been added (12 parts number).
- 2019-04-26 The part number of ECWFE has been added (36 parts number).
- 2019-01-31 The part number of ECWFE has been added (16 parts number).
- 2018-02-28 The part number of ECQUA has been added (3.3μF, 4.7μF).
- 2017-07-31 Film Capacitors for Electronic Equipment Use page has been updated.
- 2017-04-05 The rated voltage range of ECWFD has been added (630 VDC).
- 2016-10-28 Registration certificates of quality and environment certifications (ISO, TS) are available for download
- 2016-07-24"Cross reference" has been posted
Radial lead type
Features
Radial lead-type film capacitors that achieve downsizing and high safety
(ECWFA,
ECWFD,
ECWFE)
Radial lead-type film capacitors for high voltage/frequency and Safety standard approved products have a fuse in each of the cells formed by separating vapor deposition films using Panasonic's original vapor deposition pattern technology. When a local breakdown occurs due to an overcurrent, etc., only the fuse in one cell is cut off, allowing the capacitor to maintain its overall function. The use of thin films has enabled downsizing in addition to high safety.
Construction of inner electrodes
Each cell has a fuse.
Operation of fuse function
When a breakdown occurs, the fuse of the cell is cut off by a short circuit current. The cell of the broken part becomes an open circuit, allowing the capacitor to maintain its function.
AC step-up breakdown comparison test
Panasonic products are unlikely to result in a short mode breakdown (Emitting smoke/catching fire).
Fuse Function Technology of Panasonic Film Capacitors | Panasonic
In this video, we’ll review the Fuse function Technology that is built into Panasonic Film Capacitors.
Application
| Application | ① X capacitor | ② Y capacitor | ③ PFC/Smoothing | ④ Snubber | ⑤ Resonance |
|---|