Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Offline Flyback: HV Electrolytic capacitor lifetime

Status
Not open for further replies.
C

cupoftea

Advanced Member level 5
Joined
Jun 13, 2021
Messages
2,589
Helped
54
Reputation
108
Reaction score
115
Trophy points
63
Activity points
13,602
Hi,
We are doing an offline 180-265VAC Flyback (15W) with Mornsun LS15-13B12 AC/DC power module. We must add a primary side HV DC bus capacitor….
Which of the following capacitance choices would dry out quicker?...


1…One 33uF , 450V EKXF451ELL330MM20S Electrolytic capacitor
OR
2..Two 68uF , 250V UCY2E680MHD3TN Electrolytic capacitors in series.


Please also answer with relation to…
A)…Flyback on 1W standby load all the time
B)…Flyback on Full power all the time…approx. (200mA of AC rms ripple current at 100Hz)


EKXF451ELL330MM20S Electrolytic capacitor datasheet (33uF, 450V)
https://www.chemi-con.co.jp/products/relatedfiles/capacitor/catalog/KXFLL-e.PDF

UCY2E680MHD3TN Electrolytic capacitor datasheet (68uF, 250V)
https://www.nichicon.co.jp/english/products/pdfs/e-ucy.pdf
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top