Nov 25, 2008 #1 E eem2am Banned Joined Jun 22, 2008 Messages 1,179 Helped 37 Reputation 74 Reaction score 24 Trophy points 1,318 Activity points 0 hello, how do i do a 10W isolated smps with no electrolytic caps ? its for LED driving and electrolytics will fail in the heat of this enclosed product.
hello, how do i do a 10W isolated smps with no electrolytic caps ? its for LED driving and electrolytics will fail in the heat of this enclosed product.
Nov 26, 2008 #2 ferdinand_leo Junior Member level 2 Joined Nov 16, 2008 Messages 23 Helped 4 Reputation 8 Reaction score 3 Trophy points 1,283 Location Philippines Activity points 1,425 hi eem2am, may i ask you, how hot is your ambient temp? there are E-caps rated 105°C, you may be able to use it. we use them for enclosed PSU, like chargers with no overheating encountered.
hi eem2am, may i ask you, how hot is your ambient temp? there are E-caps rated 105°C, you may be able to use it. we use them for enclosed PSU, like chargers with no overheating encountered.
Nov 26, 2008 #3 E eem2am Banned Joined Jun 22, 2008 Messages 1,179 Helped 37 Reputation 74 Reaction score 24 Trophy points 1,318 Activity points 0 hello thankyou ferdinand_leo, it is very hot , it is residing in the base if a light bulb, completely enclosed. say 110 degree C. No fan, no vent holes.
hello thankyou ferdinand_leo, it is very hot , it is residing in the base if a light bulb, completely enclosed. say 110 degree C. No fan, no vent holes.
Nov 27, 2008 #4 ferdinand_leo Junior Member level 2 Joined Nov 16, 2008 Messages 23 Helped 4 Reputation 8 Reaction score 3 Trophy points 1,283 Location Philippines Activity points 1,425 ooh... that's really hot eem2am, ok, let me know the other specs you need for your cap and what is its specific purpose in the circuit...? maybe you first try to use an e-cap then measure it's actual temp while in operation. that would help you know how hot that cap would be.
ooh... that's really hot eem2am, ok, let me know the other specs you need for your cap and what is its specific purpose in the circuit...? maybe you first try to use an e-cap then measure it's actual temp while in operation. that would help you know how hot that cap would be.
Nov 27, 2008 #5 Awarapunshee Advanced Member level 1 Joined Jul 11, 2007 Messages 409 Helped 93 Reputation 186 Reaction score 31 Trophy points 1,308 Location Some Where In Heaven Activity points 3,184 Use Mil Grade Tantulum Capacitor from KEMET or VISHEY etc. Enjoy!
Nov 27, 2008 #6 V vaibhav.k Advanced Member level 4 Joined Apr 12, 2006 Messages 112 Helped 9 Reputation 18 Reaction score 3 Trophy points 1,298 Location India Activity points 1,779 Mil grade tantalum will be very costly than normal caps