Looking to buy some New solder for my tv repair I bought some and the size was too thin. What is a good brand and size or kind
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Re: whats the best solder to use
I have tw0 (2) rolls. 1/16" for fine work and 1/8" for normal work and tinning wires. I use 60/40 Sn/Pb (Tin/Lead). Hope this helps. -
Re: whats the best solder to use
what did you actually buy??
i use .7mm for general use.Comment
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Re: whats the best solder to use
I use 63/37 no-clean, Multicore brand solder, the diameter is 0.56mm (0.022").
Quality solder with good amount of flux is key. Also a separate flux pen or a small bottle of flux helps a lot.
It's best to have one roll with thin diameter for tiny through hole or surface mount soldering (under 0.5mm / 0.022) and one with a larger diameter for bigger soldering jobs (0.7mm / ~0.03" or larger)
63/37 is one of the best leaded solders because it's euctetic, meaning as soon as the temperature goes below an exact level ( 183C +/- a couple of degrees), the solder solidifies instantly.
Regular 60/40 leaded solder is quite popular, well known but stays semi-liquid between a range of temperatures (I think about 10 degrees around 180C) so if your hand is shaky or there's lots of pins to solder you have to be more careful. That semi-liquid state makes it easier to use for beginners but if you did a bunch of soldering you'd do fine with 63/37.
If you want, you can also go with solders that use a tiny bit of silver (Ag) in them, like 62/36/2 which means there's 2% silver. In theory, the silver helps solder bind better with surface mounted components that have silver in their terminations (there used to be a lot of surface mount parts with silver on them, now I think there's fewer)
A good store to buy from is :
* Digikey: http://www.digikey.com/product-searc...solder/1310838
* Newark : http://www.newark.com/solder-wire
* Mouser: http://www2.mouser.com/Tools-Supplie...der/_/N-b11qq/
Buy no-clean or rosin activated solder, stay away from water soluble because it's harder to clean boards from the water soluble flux remains (which can continue to do their job unless they're cleaned properly).
Rosin activated flux can often be left on the boards without issues, or simply cleaned with a bit of isopropyl alcohol. Same for no-clean solder.
Good brands : Multicore, MG Chemicals , Kester , Edsyn, StannolLast edited by mariushm; 08-29-2015, 02:58 PM.Comment
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Re: whats the best solder to use
or you could keep it legal and ditch the lead - just saying.Comment
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Problem
This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached.... -
This is a guide that I am writing for helping others to replace their MEC1503 EC chip if it breaks (or to get around an inconvenient prompt to the BIOS). This forum has been extremely helpful to me so I would like to contribute to help others. I will tell you right now that this task is very difficult to do. You MUST have experience and tools to do precision micro-soldering, BGA reballing, trace repair, and general laptop repair skills.
There are some specialty tools needed to do this task. The replacement MEC1503 chips can be acquired from Aliexpress. Do not buy the bare chips as... -
Hello, I'm a beginner for micro soldering. Right now I have some difficult to solder a qfn 20, I guess I put too much solder on the thermal-ground pad, the result is a corner of chip wich don't touch the board (last try).
I use a wire solder with hot air, I tin the board and chip before with iron and I use good flux.
I will have to solder a LVDS connector (40 pins, laptop pc), I saw a solder paste in seringe, good quality (it does not scatter).
See the test :
https://youtu.be/bNAzC-EvqHs?t=1767
With hot air from bellow the board, that's... -
Can someone recommend any good UV solder mask? But i need a solder mask that will stand high temperetures. The thing is...sometimes i have a bigger cooper ripped from the board, lets say mosfet pad... i reconstract it with cooper sheet, then i "glue it" with solder mask...then i use UV light...and let it cool a bit. After, i try to clean the cooper of extra solder mask..and till that part all is ok. But, when i use a soldering iron to solder that pad/cooper...the solder mask gets weaker or destroyed and finally the pad is ripped again from the board .
Is there any solder mask... -
So I though in my spare time I’d set myself up repairing motherboards mainly pin damaged lga1151 sockets types.
I’m using an achi ir sc pro rework station (gave up on my Achie ir6500 - don’t recommend)
I’ve managed to get my rework profile somewhere in the correct region (after a lot of trial and error) to get the old sockets off and reflow new ones back on again, the problems I’m getting is not all of the solder balls are re-attaching when re-flow occurs. I know this because when socket is removed pads still look clean and have no solder...
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