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Ultra low ohm ( metal strip ) LR series
Ultra low ohm ( metal strip ) LR series
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RF & logic switching reed relay 9200 series
RF & logic switching reed relay 9200 series
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RTD mineral insulated with lead RPL13-P
RTD mineral insulated with lead RPL13-P
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40kV high voltage through hole resistors HVR series
40kV high voltage through hole resistors HVR series
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120W - 600W edge wound resistor KR series
120W - 600W edge wound resistor KR series
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Applcation Notes

Engineering calculators





Resistors
PPM/% calculator

PPM / % calculator

This calculator converts from ppm ( parts per million ) to percentage, and from percentage to ppm. This is particulary useful when working out the total error contributed by a resistor.

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Maximum resistor power for given heatsink

This calculator enables the user to calculate the maximum power that a resistor can dissipate with a given heatsink size and ambient temperature.

Heatsink size calculator

Heatsink size calculator

This calculator calculates the heatsink size for given resistor power and ambient conditions.

Inrush current limiters
Inrush current limiter energy calculator

Inrush current limiter energy calculator

When designing a circuit that uses an inrush current limiter one of most important parameters is the energy rating of the circuit. This calculator helps determine this parameter.