Can I substitute this resistor with one that has a different series code?

What’s the circuit? Resistors are resistors, and their main property is the nominal resistance. All other things depend on where the resistor is used:

  • Tolerance (how important is the exact resistance value in the given circuit?).
  • Footprint (if you have an existing PCB).
  • Power rating (if exposed to enough voltage, and the resistance is low enough, it needs to be able to handle the current going through it)
  • Temperature coefficient (if used in temperature-sensitive precision circuits, where the resistance value must change in the same way as other component values elsewhere in the circuit)
  • Voltage rating (if using in high-voltage circuits)
  • Packaging (if you’re using a machine to populate your PCBs)

For most cases, the first and maybe the second additional property is all that matters.

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