MechaTronix: MODULED 9950-B LED Star heatsink for 3590?

welight

welight

Well-Known Member
Greengenes707 said:
@welight
I did say every RADIAL sink they make. Pin sinks are their own category with almost every supplier, or search category...including mechatronics. Mechatronics can call their radials Modulars all they want. Still a basic radial design that do differ from pins.
View attachment 3633689

Don't quote me unless you have real information or a suggestion about what you're quoting. Not a vague saving face cause I mentioned one of your suppliers in a bad way. You can come and SHOW whatever, for whatever reason. But if you quote me to do it, you better be on point and have something behind it.
Click to expand...
no worries, I just term any non linear plate sink, radial and thats pretty much what Mechatronix make. I have no problem having my supplier bagged out if their products do not come up to spec
Cheers
Mark
 
thetr33man

thetr33man

Well-Known Member
Some info I got back from MechaTronix. Basically this heatsink should work fine for 36v @ 700mA, if you want to run up to 50w through the cxb3590, they recommend going up to their larger size, same diameter just taller. Seems like a reasonable solution at only $7 for the smaller and $9.50 US for the taller profile... They actually went so far as to mount one to verify that it will work... Nice of them!

Also I asked them about the reported flatness issues and this was the response I got.
"We have a +/-0.1mm tolerance for our surface flatness and suggest to put a TIM between heatsink and COB to fill the gap and help the heat conduction."
 
V

VegasWinner

Well-Known Member
@thetr33man outstanding. you sad it would fit, proved the experts wrong, and the company even mounted a 3590 COB to the HS and it works, inexpensive and workable for 50w. I guess our sponsors are going to have to rethink their pricing and choices of radial heat sinks. I am surprised the same folks that said it could not work are not congratulating you for your success. great job. We all win with this news. Better HS pricing in the future, now. peace.
 
thetr33man

thetr33man

Well-Known Member
I wasnt out to prove anyone wrong, but this is good news. Individual radial heatsinks for <$10 that should work passively for cxb3590s up to 50 watts, pretapped and anodized is a pretty sweet deal IMO... No someone just needs to build a fixture and run them for a month to see how things go. Would be nice to see some temp measurements of them in action... Malinda @ Mecha has been VERY helpful, gotta give her some credit!
 
nevergoodenuf

nevergoodenuf

Well-Known Member
A lot of use are looking for much cooler case temps, so I would use it for 30 watts or less. She is most likely using 85c. And for that they are a steal.
 
welight

welight

Well-Known Member
thetr33man said:
Some info I got back from MechaTronix. Basically this heatsink should work fine for 36v @ 700mA, if you want to run up to 50w through the cxb3590, they recommend going up to their larger size, same diameter just taller. Seems like a reasonable solution at only $7 for the smaller and $9.50 US for the taller profile... They actually went so far as to mount one to verify that it will work... Nice of them!

Also I asked them about the reported flatness issues and this was the response I got.
"We have a +/-0.1mm tolerance for our surface flatness and suggest to put a TIM between heatsink and COB to fill the gap and help the heat conduction."
Click to expand...
A lot of Mechatronix sinks come with a nice range of holes that allow for the use of different holders, I have to agree and say 700ma would be max on this, you could go to the LSB9980 for another 30mm of meat for safety. No doubt the TIM selection will help on minor coplanar issue on the surface
Cheers
Mark
 
V

VegasWinner

Well-Known Member
thetr33man said:
I wasnt out to prove anyone wrong, but this is good news. Individual radial heatsinks for <$10 that should work passively for cxb3590s up to 50 watts, pretapped and anodized is a pretty sweet deal IMO... No someone just needs to build a fixture and run them for a month to see how things go. Would be nice to see some temp measurements of them in action... Malinda @ Mecha has been VERY helpful, gotta give her some credit!
Click to expand...
I know you were not trying to prove anyone wrong. You are looking for an affordable solution and found it perhaps. peace.
 
V

VegasWinner

Well-Known Member
sixstring2112

sixstring2112

Well-Known Member
VegasWinner said:
So i listened to @thetr33man and shopped around and found two of these 99mmx 80mm passive heat sinks for $9.49. These should handle CX_3590 COB's to about 80W I figure, 50w for a 99m x 50m heat sink. Shiping was like $9.00 tax I will find out as well as duty. I am sure they are not very high. perhaps a great source for passive cooled heat sinks for CXB3590's here -> https://www.cdiweb.com/ProductDetail/MODULEDXTRA9980B-mechatronix/574061/#.VvEYhTHz8gu
peace.
Click to expand...
wow that is cheap and to be able to run up to 80w it should keep a 50w cob nice n cool.what kind of hole pattern does it have,had to tell from the one pic they show on that site?
 
V

VegasWinner

Well-Known Member
sanjuan

sanjuan

Well-Known Member
thetr33man said:
These are the stats of the smallest heatsink rated for the 3590 cobs, obviously huge overkill and more than 3x the price.... Also has about 4x the surface area required for the 3590 @ 700mA!

Manufacturer: MechaTronix
Status: Standard
Datasheet: MODULED GIGA 152100-B-HBG DataSheet
RoHS Compliance:
Yes
Specifications:
Diameter:
152 mm
Height:
100 mm
Thermal Resistance:
0.52 °C/W
Total cooling surface (mm²):
363547
Volume (mm³):
566553
Weight:
1530 g
Anodized Color:
Black
Dissipated Power Pd:
95 W
Click to expand...
I bought a ten pack of these from CDIweb.com for the CXB3590/CXA3590. I haven't measured flatness but quality looks good. Also bought a ten pack of HBG-90 (1400mA, dimmable) from onlinecomponents.com. Edit: adapter plate required for Giga; direct fit on Mega ModuLED.
 
Last edited:
Abiqua

Abiqua

Well-Known Member
Mechatronix can claim whatever they want.....take your own chances @700ma....Their rth values aren't even close to a real world calc unfortunately....guess you will find out, I did.

Kind of disappointing too...they look purty, but mass imho is what is all worth...You need 400+grams of mass for 15W-20W of dissapated heat imho...for passive.

I weighed those slugs @ 200 grams +- 5 grams....again imho its just not enough for what they claim.
 
You must log in or register to reply here.
Top