If it's for DIY purposes you can still use leaded solder if you prefer it. Otherwise, not all lead-free solder is the same. Try Senju M705 or a similar SnAgCu

If it's for DIY purposes you can still use leaded solder if you prefer it. Otherwise, not all lead-free solder is the same. Try Senju M705 or a similar SnAgCu alloy, you may be pleasantly surprised. M705 datasheet: https://www.opendatasheets.com/datasheet/m705-senju-metal-industry-41405482.html https://www.opendatasheets.com/datasheet/m705-senju-metal-in...