3 ms·

If anybody else wonders why a 0-ohm resistor is a thing, apparently it is because it makes it possible to install a jumper on printed circuit boards with the sa

• l33tman 2y ago
  You put 0-ohms where you think you might at some point want to have something else there like a > 0 ohm resistor or an inductor (for EMI blocking for example), it's much easier to just reprogram the SMD robot than to make a new PCB.
  • a1369209993 2y ago
    That's accurate, but given the lack of words to the effect of "You can also put", it deserves the clarification that the most common something else is - as the parent suggested - a ∞-ohm resistor, either as a specific component or more commonly in the form of the absense of a component.
• lazide 2y ago
  Resistor shaped wires are also a lot less dangerous than fuse shaped ones. In my experience.
• 4gotunameagain 2y ago
  It can serve multiple purposes. You can have 0 ohm resistors to serve as a bridge to run a trace below if you're running out of space. You can have multiple resistor footprints and depending on where the 0 ohm is placed, different configurations are enabled. You can use it to be able to isolate parts of the circuit after the fact, although solder jumpers are more common for that purpose
• nine_k 2y ago
  A "0-ohm resistor" could also be more clearly called a "conductor", but it's not, despite its electrical function. I suppose it's because the mechanical function is more salient: it is a standard SMD part like other resistors, capacitors, LEDs, etc, not a conductor etched on the PCB.