CSL Series miniature wired open-loop current sensor, 1 A sensed current, sink or source output, through-hole, operates on ac or dc current, bottom mount CSL Series in-circuit analog current sensors incorporate the SS490 Series linear Hall-effect sensor ICs. The sensing element is encapsulated in a printed circuit board-mountable plastic package. The combination of sensor and flux collector comprises the current sensor assembly. These sensors are ratiometric.