it would be more helpful if you could let us know what device it was in and, even more helpful, show the circuit.Hi can anyone help identify this resistor? Its burnt out (open) and the colors are tough to read. Any help would be appreciated.
To be fair, modern 1% resistors are quite hard to read the colours on anyway, and colours very often change when overheated.Thanks for everyone's help here. The resistor was open, and burnt quite badly so colours were not true. I thought it might be 100 ohms but after all the feedback it seems that 1 meg is the right choice. I'll try it today. Many thanks again to everyone, its appreciated.
True.Assuming it is 1 Meg? - it's not really a value which you would expect to 'burn up', as it's power dissipation should be pretty low.
Resistors do have voltage ratings - and historically resistors in such circuits do go O/C, but they don't generally 'burn up' as there's not enough power dissipated in them.True.
But the thought occurs to me that resistors also have a voltage rating, and that resistor will have been subjected to mains voltage for long periods.
It seems reasonable that overvolt operation will eventually result in failure.