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F5X -- the EUVL Approach - The Build Thread
F5X -- the EUVL Approach - The Build Thread
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Old 7th January 2020, 07:32 AM   #1261
Morde is offline Morde  Finland
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F5X -- the EUVL Approach - The Build Thread
Thanks ashaw, I'm interested if you find the bi-color LEDs.

"The difficult part for me for the protection board was crimping those 2mm connectors.
Had I known ashaw was using 2mm pitch, I would have asked for change back to 2.5mm.
Too late ...
."

What would be suggested connectors to the PCB and cable assembly? The ones in the BOM could not be found anymore from Mouser.
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Old 7th January 2020, 08:02 AM   #1262
ashaw is offline ashaw  Australia
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I cannot check right now, but I will have a look tomorrow afternoon. I think the Sherlock series from molex works, the 4 contact has pn 35363-0460. I will have to check fit though.
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Old 7th January 2020, 08:47 AM   #1263
Morde is offline Morde  Finland
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F5X -- the EUVL Approach - The Build Thread
Thanks for the tip. Here's a link for the Sherlock series in Digi-Key: Sherlock Connector System - Molex Connector | DigiKey
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Old 7th January 2020, 09:22 AM   #1264
EUVL is offline EUVL  Europe
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I am using Molex microblade 2mm.


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Old 7th January 2020, 09:40 AM   #1265
soldersober is offline soldersober  Hong Kong
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Quote:
Originally Posted by Morde View Post

What would be suggested connectors to the PCB and cable assembly? The ones in the BOM could not be found anymore from Mouser.
Digikey have the PCB headers https://www.digikey.hk/product-detai...1721-ND/926628
But again the mating cable parts seem to be only at Mouser 51065-0400 Molex | Mouser 香港
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Old 14th January 2020, 09:55 AM   #1266
ashaw is offline ashaw  Australia
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I was in Shenzhen markets today, and picked up another 100 of the 3mm r/b common-cathode leds. So if you want a few just pm me your address i will send you a few on a card.
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Old 22nd January 2020, 06:02 PM   #1267
EUVL is offline EUVL  Europe
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I have had a look at previous posts of this thread.
I'll see if I have time this weekend to post some relevant links.
And send BoM of GB2 to the GB3 subscribers, including updates due to obsolete parts.

Please be patient. I'll do my best.


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Old 23rd January 2020, 11:06 AM   #1268
Morde is offline Morde  Finland
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F5X -- the EUVL Approach - The Build Thread
Great to have an updated BOM! Thank You very much Patrick and take your time.
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Old 24th January 2020, 11:23 AM   #1269
EUVL is offline EUVL  Europe
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Default GB3 Updates

The F5X project has gone through 2 batches already with more than 50 examples in the field.
So GB3 is very matured and everything is basically the same as GB2.

There are a lot of information and discussions already in this build thread.
I have gone throught the thread again and picked some posts with particlular relevance.
But I still encourage you to go through the entire thread.
Post 661, 664, 738, 740, 823, 847, 933, 938, 948, 973, 977, 978, 983, 988, 1008, 1026, 1044, 1046, 1049, 1076, 1095, 1231

The GB3 subscribers will receive per Email an updated BoM in pdf format.
These are essentially the same as GB2, with the exception of some components which have become obsolete.


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Old 24th January 2020, 11:25 AM   #1270
EUVL is offline EUVL  Europe
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The most "difficult" of these are the power supply caps.
The original Panasonic 22000F 35V is very compact at D30mm x H45mm.
It is also rated at 105C, which is important in a warm housing.
Unfortunately it is no longer produced.
None of the readily available alternatives can fit 1:1.
So we have to make some choices.

Firstly why 35V ?
The cap has to survive the peak voltage after the rectifiers.
With 15Vrms secondaries and 15% no-load margin, this comes to ~23V
Too close for comfort to use 25V.

The closest I can find is Rubycon 35MXC22000MEFCSN30X50.
It is also 22000F 35V, and slightly longer with 50mm.
But it is non-stock with a MoQ of 100 and delivery of 17 weeks.
MoQ is no issue with you group together to GB.
So it is an realistic option.

If you accept less capcitance (in theory not a big deal because of cap multipliers instead of CRC),
then Nichicon LGY1V153MELB45 (15000F 35V) will fit, and is in stock.

You can of course ask the transformer supplier to limit no-load rectified voltage to 23V max.
Then you can use 25V caps with more choices.
Examples are EPCOS B41252A5229M000, or Nichicon LGY1E223MELB45.

If you are not worries about lifetime, but want to use Audio caps, then you can consider Nichicon LKG1V183MESBAK.
Non-stock, 200 MoQ, and 85C.

I never like using caps to their full voltage with no margin.
So if I have to choose, I would stick to 35V, 105C.
And then the choice would be between Rubycon MXC or MXG (non-stock), and Nichicon LGY.


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