Stackpole Electronics, Inc. is releasing 1 to 2 mOhm 1W all metal current sense chip resistors in 0805 size.
Electronics designers are driven to downsize circuitry to make products lighter, smaller, more efficient and to allow for added features. Downsizing takes place in allaspects of the circuit design including the power control and delivery. This can be challenging since it isn’t always possible to reduce the actual power being delivered. One method of downsizing without reducing the power capability is to increase the power handling for a given component.
Stackpole’s CSSH0805 offers an all metal 1W current sense chip in resistance values of 1, 1.5, and 2 milliohms. This combination of high-powerhandling and low resistance along with the TCR of 100 ppm allow the CSSH0805 to be used in power delivery platforms normally requiring a much larger current sense resistor. Pricing for the CSSH0805 is $0.125 each in full reel quantities.