CT4051 and CT4052 contactless sensors measure current via the magnetic field generated by flowing current, both sensors are coreless (with no ferromagnetic core), non-intrusive (they don’t cut the current path) and differential in the case of CT4052 which enables immunity to external magnetic field disturbance or Common-Mode Field Rejection (CMFR).

The CT4051 is offered in an industry standard 8-lead SOIC package and 8-lead TSSOP that are “green” and RoHS compliant.

The CT4052 is offered in an industry standard 8-lead TSSOP that are “green” and RoHS compliant.