Hope Electronics Technology Manual Edition V1.0 79
Conductive properties of metals and alloys
Temperature Correction Function (TC)
The temperature coefficient changes according to the temperature and
conductivity.
If the temperature coefficient at 20°C is a
20
and the temperature coefficient
for conductivity C at t°C is a
Ct
, a
Ct
is determined as follows near the ambient
temperature.
For example, the temperature coefficient of international standard annealed
copper is 3930 ppm/°C at 20°C. For tinned annealed copper wire (with a
diameter from 0.10 to less than 0.26 mm), the temperature coefficient a
20
at
20°C is calculated as follows:
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