Re: Voltage ratings of SM resistors

According to my RN73 datasheets, the Working voltage is guaranteed
across the normal operating temperature range. For these devices,
that's normally -55C to +125C (although they do state they have +150C
devices avalable for special order).

The data *** shows that for a 0805 device, there will be a surface
temperature rise of 12C at 100% rated power.

The 0805s on this data *** are rated at 100V max working, with an
absolute max overload voltage of 200V.

That differs from your numbers a little, so it could be the
construction (RN73 is thin film NiCr) and perhaps the level of detail
in the data ***.

Cheers

PeteS

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