Four-terminal resistors provide ultralow values

New four-terminal bare element resistors from Ohmite combine the advantages of a Kelvin configuration with PC board mounting capability.

Providing ultralow resistance values (to 5mohm) for relatively high current requirements, new four-terminal bare element resistors from Ohmite combine the advantages of a Kelvin configuration with PC board mounting capability.

Specifically designed for low resistance applications requiring the highest accuracy and temperature stability The four terminal resistors are a new version of Ohmite's 60 Series resistor which was specially designed for use in a Kelvin configuration where a current is applied through two opposing leads and sensing voltage is measured across the other two leads.

The Kelvin configuration enables the resistance and temperature coefficient of the leads to be effectively eliminated.

The four terminal design also results in a lower temperature coefficient of resistance and lower self-heating drift which may be experienced on two-terminal resistors.

The need to connect to the leads at precise test points is eliminated, allowing for tighter tolerance on the end application.

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