toninlg
Member level 1
triac soldering temperature 220vac
Hi,
I have to do a PCB with a triac (TO-220 isolated package) and an heatsink.
The maximum current is 9A. I've found tables for the track width but how can I choose the tolerated temperature rise in order to calculate the dimensions of tracks?
I've seen a table with clearance distances (**broken link removed**), with 220VAC it seems that clearance should be 1.50mm. With the required diameter for the (elongated) pad (regarding the pin diameter), the distance between the pads is less than 1mm and less than 0.9mm between the pads and the heatsink. So, what can I do in order to respect clearance distances?
Thank you.
Hi,
I have to do a PCB with a triac (TO-220 isolated package) and an heatsink.
The maximum current is 9A. I've found tables for the track width but how can I choose the tolerated temperature rise in order to calculate the dimensions of tracks?
I've seen a table with clearance distances (**broken link removed**), with 220VAC it seems that clearance should be 1.50mm. With the required diameter for the (elongated) pad (regarding the pin diameter), the distance between the pads is less than 1mm and less than 0.9mm between the pads and the heatsink. So, what can I do in order to respect clearance distances?
Thank you.