Ik vergat een weerstand op mijn PCB-prototype – hoe voeg ik er een toe?

I need to add a resistor into a data line on my project. The data line is a trace and carries low speed data. A through-hole resistor will be fine. The pins for both ends of the trace are exposed, but how do I add the resistor and remove the trace?

oktober 26, 2023

If your PCB has a solder mask, you can fix this with an SMT resistor even when traces are close together. Cut the trace and scrape the solder mask away on both sides of the cut, over a few mm. Solder an 0603 of 0402 over the cut. If I patch like that, I actually make two cuts a mm apart, and remove the trace by dental pick between both cuts to make sure there’s a decent interruption of the trace.
alternatief, you can do the same and solder a PTH resistor, whose wires you first bent so that they lay flat on the trace. Won’t probably work as well on narrow traces, like 0.5mm.

Lees verder: Een korte handleiding voor prototype PCB-assemblage

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Olivier Smit

Oliver is een ervaren elektronica-ingenieur met kennis van PCB-ontwerp, analoge circuits, ingebedde systemen, en prototyping. Zijn diepgaande kennis omvat schematisch vastleggen, firmware-codering, simulatie, indeling, testen, en probleemoplossing. Oliver blinkt uit in het omzetten van projecten van concept naar massaproductie met behulp van zijn elektrische ontwerptalenten en mechanische vaardigheden.

Olivier Smit

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Ik vergat een weerstand op mijn PCB-prototype – hoe voeg ik er een toe?

Olivier Smit

Olivier Smit

Wat anderen vragen

Is aluminium foil a good substitute for kapon tape when soldering?

CEM3 or FR4 PCB, which is the lightest material?

How can I mount a pulse oximeter on the surface of PCB without putting too much stress?

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