STACKPOLE Electronics, represented in Australia by Multi Components , has released a new 1225-sized current sense chip resistor capable of handling 3W of power at 70°C.
Designated the CSR3, it features resistance values from 0.002Ω to 0.200Ω, in tolerances to ±1%. The resistor has a TCR of ±200ppm/°C and demonstrates inductance of less than 0.2nH (measured at 1GHZ).
The CSR3 is rated for operation from -55°C to +150°C and is manufactured with a bottom side, 4-pad termination to allow for a Kelvin connection. It is fully compatible with automated assembly equipment and wave or reflow soldering methods.
According to Stackpole, the CSR3’s wide terminations on the long side allow engineers to run wider copper traces, thereby reducing solder joint resistance and increasing current carrying capacity at lower temperatures. The design of the SCR3 is aimed at providing a new alternative in reliable, ultra-low resistance and high current resistor options.
In addition to portable electronics devices, CSR3 is finding application in current-sensing and feedback circuits in disk drives, power supplies, automotive systems and instrumentation.