Hi Jean-Samuel.
As known, hardware developing impossible without soldering iron. With UmTRXv2 I found that was used very infusible solder paste. As I understand it is due to compliance to Pb-free. Nevertheless, could you please to ask fab to use more fusible solder paste . I ask, because lab users can easy damage PCB due to the local overheat. For example, I was forced to use simultaneously soldering iron (300 deg C) and air heater (350 deg C) to solder linear regulators.
Best regards, Andrey Sviyazov.
On Wed, Nov 7, 2012 at 8:54 PM, Andrey Sviyazov andreysviyaz@gmail.com wrote:
Nevertheless, could you please to ask fab to use more fusible solder paste . I ask, because lab users can easy damage PCB due to the local overheat.
You mean if they need to change something?
-- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru
Yes. At least to fix our issues, for example.
Best regards, Andrey Sviyazov.
2012/11/7 Alexander Chemeris alexander.chemeris@gmail.com
On Wed, Nov 7, 2012 at 8:54 PM, Andrey Sviyazov andreysviyaz@gmail.com wrote:
Nevertheless, could you please to ask fab to use more fusible solder
paste .
I ask, because lab users can easy damage PCB due to the local overheat.
You mean if they need to change something?
-- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru
Just another data point... I used PbFree solder paste on the GAPfiller boards, but did all of the fixes using leaded solder. It wasn't ideal, but it was much easier than trying to use PbFree solder for modifications.
On Wed, Nov 7, 2012 at 12:27 PM, Sylvain Munaut 246tnt@gmail.com wrote:
Seems so. Do you know low fusible lead free solder paste ?
No unfortnately all the lead free board I worked with sucked from that PoV :( When you have to rework anything connected to a ground plane, it's hell to avoid burning the FR4, lifting traces, ...
Cheers,
Sylvain
I use this http://www.boilpass.com/lukey-702-digital-hot-air-rework-station-solder_p4611.htmlrework station (it doesn't advertising). I can work with almost all components (except BGA and so on), but feel smell of burned FR-4 :)
Best regards, Andrey Sviyazov.
2012/11/7 Robin Coxe coxe@close-haul.com
Just another data point... I used PbFree solder paste on the GAPfiller boards, but did all of the fixes using leaded solder. It wasn't ideal, but it was much easier than trying to use PbFree solder for modifications.
On Wed, Nov 7, 2012 at 12:27 PM, Sylvain Munaut 246tnt@gmail.com wrote:
Seems so. Do you know low fusible lead free solder paste ?
No unfortnately all the lead free board I worked with sucked from that PoV :( When you have to rework anything connected to a ground plane, it's hell to avoid burning the FR4, lifting traces, ...
Cheers,
Sylvain-- Robin Coxe | Close-Haul Communications, Inc. | Boston, MA +1-617-470-8825
Dear all,
On Wed, Nov 07, 2012 at 08:54:29PM +0400, Andrey Sviyazov wrote:
As known, hardware developing impossible without soldering iron. With UmTRXv2 I found that was used very infusible solder paste. As I understand it is due to compliance to Pb-free.
Please note that RoHS is not a requirement in Europe for telecom equipment! So if you have a SMT factory that still uses solder with Pb, you can avoid those issues.
On Wed, Nov 7, 2012 at 9:12 PM, Harald Welte hwelte@sysmocom.de wrote:
On Wed, Nov 07, 2012 at 08:54:29PM +0400, Andrey Sviyazov wrote:
As known, hardware developing impossible without soldering iron. With UmTRXv2 I found that was used very infusible solder paste. As I understand it is due to compliance to Pb-free.
Please note that RoHS is not a requirement in Europe for telecom equipment! So if you have a SMT factory that still uses solder with Pb, you can avoid those issues.
You mean it's a requirement only for consumer electronics? Didn't know that.
-- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru
As known, hardware developing impossible without soldering iron. With UmTRXv2 I found that was used very infusible solder paste. As I understand it is due to compliance to Pb-free.
Please note that RoHS is not a requirement in Europe for telecom equipment! So if you have a SMT factory that still uses solder with Pb, you can avoid those issues.
You mean it's a requirement only for consumer electronics? Didn't know that.
The exact rules are a bit more complicated than this, but yes, there is a lot of exemptions from RoHS.
Cheers,
Sylvain
On Wed, Nov 7, 2012 at 10:26 PM, Sylvain Munaut 246tnt@gmail.com wrote:
As known, hardware developing impossible without soldering iron. With UmTRXv2 I found that was used very infusible solder paste. As I understand it is due to compliance to Pb-free.
Please note that RoHS is not a requirement in Europe for telecom equipment! So if you have a SMT factory that still uses solder with Pb, you can avoid those issues.
You mean it's a requirement only for consumer electronics? Didn't know that.
The exact rules are a bit more complicated than this, but yes, there is a lot of exemptions from RoHS.
Good to know, thanks!
-- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru
What about Pb-free for SoHo telecom equips?
Best regards, Andrey Sviyazov. (Sent from my mobile client) 07.11.2012 22:55 пользователь "Alexander Chemeris" < alexander.chemeris@gmail.com> написал:
On Wed, Nov 7, 2012 at 10:26 PM, Sylvain Munaut 246tnt@gmail.com wrote:
As known, hardware developing impossible without soldering iron. With UmTRXv2 I found that was used very infusible solder paste. As I understand it is due to compliance to Pb-free.
Please note that RoHS is not a requirement in Europe for telecom equipment! So if you have a SMT factory that still uses solder with
Pb,
you can avoid those issues.
You mean it's a requirement only for consumer electronics? Didn't know
that.
The exact rules are a bit more complicated than this, but yes, there is a lot of exemptions from RoHS.
Good to know, thanks!
-- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru
On Wed, Nov 7, 2012 at 11:04 PM, Andrey Sviyazov andreysviyaz@gmail.com wrote:
What about Pb-free for SoHo telecom equips?
According to Harald's definition and if read the Directive correctly, it's excempt:
Applications of lead, mercury, cadmium and hexavalent chromium, which are exempted from the requirements of Article 4(1) ... 7. - Lead in high melting temperature type solders (i.e. tin-lead solder alloys containing more than 85 % lead), - lead in solders for servers, storage and storage array systems (exemption granted until 2010), - lead in solders for network infrastructure equipment for switching, signalling, transmission as well as network management for telecommunication, - lead in electronic ceramic parts (e.g. piezoelectronic devices).
http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:32002L0095:EN:HT...
-- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru
On Wed, Nov 07, 2012 at 11:04:13PM +0400, Andrey Sviyazov wrote:
What about Pb-free for SoHo telecom equips?
From http://www.dti.gov.uk/sustainability/weee/RoHS_Guidance_November05_Final.pdf:
==== Annex C Section 8 (Page 18). Lead in solders for servers, storage and storage array systems, network infrastructure equipment for switching, signaling, transmission as well as network management for telecommunication.
For the purpose of the RoHS Regulations, ‘network infrastructure equipment for telecommunication purposes’ is viewed by the Department as equipment meeting one of the two following criteria:
Any system used for routing, switching, signalling, transmission, or network management or network security; or Any system which can simultaneously enable more than one end user terminating equipment to connect to a network.
It is also any such system in a network, except for end user terminating equipment such as voice terminals and facsimile machines.
This would include all servers, power suppliers, display devices and similar electronic units that are incorporated into network infrastructure equipment. It would also include all cables and cable assemblies, and all connectors and connector assemblies used to provide interconnections for network infrastructure equipment but is not intended to include desktop or notebook computers, telephones, fax machines or consumer – type modems or switches etc. ====
As a BTS is not end-user terminating and can simultaneously enable more than end user terminating equipment, I don't think the solder of a BTS ever needs to be Pb-free.
Hi Alexander,
On Wed, Nov 07, 2012 at 10:19:08PM +0400, Alexander Chemeris wrote:
Please note that RoHS is not a requirement in Europe for telecom equipment! So if you have a SMT factory that still uses solder with Pb, you can avoid those issues.
You mean it's a requirement only for consumer electronics? Didn't know that.
Please read the EU directive. It's not as simple as consumer/professional equipment, but generally anything installed in a telcommunications network, or even a 19" rackmount server in a data center are not required to be lead-free.
-
Alexander Chemeris -
Andrey Sviyazov -
Harald Welte -
Robin Coxe -
Sylvain Munaut