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Post by tjdreams on Sept 17, 2024 15:43:28 GMT -5
Alex your instructions mentioned using a Soldering Iron with a 1mm tip But what about temperature?
For those who have Soldering Irons with adjustable settings what Temperature do you recommend we set them to for soldering wires onto your ZM05A-1?
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Post by scanrail on Sept 18, 2024 2:24:19 GMT -5
I recommend using 1 mm tip because the soldering pads on the circuit board of the digital decoder are very small. There is a risk of making bridges with thicker tip.
Regarding the temperature: it depends on what type of solder you use. For 'classic' Sn63Pb37 alloys, 320 degrees C would be enough; lead-free alloys like Sn96.5Ag3Cu0.5 or similar require higher temperature - around 350 degrees C.
What I would never recommend: don't go above 400 degrees C - it doesn't help to improve the soldering, but exposes the board to the risk of being damaged instead. Also, regardless of the temperature, it is of course always recommended to solder as quickly as possible due to the same reason.
Please also note that some soldering stations often tend to show not too correct temperature. The most common reason for this is because the thermal sensor is located not inside the tip itself, but inside the heating element behind it. Modern soldering irons with a newer construction, where the heating element is integrated into the tip directly, are free from this shortcoming.
Best regards,
Alex
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Post by husafreak on Sept 18, 2024 10:17:00 GMT -5
BAZman told me years ago to use 600-650F for lead solder and 650-700F for unleaded solder. Those temps are right in line with scanrail 's from above. FWIW In the last year I got back into building small FPV acrobatic quads and assembling them requires a lot of tiny solder connections to fragile electronics. The numbers above and equipment have worked perfectly with my Weller soldering station for that and Z scale. Seems awfully hot but since the point of contact is so small it works perfectly.
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