Coilcraft is launching its new CST2010 series of current sense transformers designed to detect switching current up to 40 A over a frequency range of 50 to 500 kHz while also isolating circuits electrically, resulting in significantly lower power dissipation than current sense resistors.
This makes them ideal for switched-mode power supply applications, including feedback control, overload detection and load drop/shutdown detection.
The surface mount devices have a 14,55 x 19,91 mm footprint with a maximum height of 10,50 mm. Coilcraft offers 11 turns ratios (primary-to-secondary) ranging from 1:20 to 1:200. The CST2010 series also features 500 Vrms isolation between windings and very low primary DC resistance (0,36 mΩ). It uses RoHS compliant tin-silver, over tin, over nickel, over phosphor bronze terminations, and has an ambient temperature rating of -40°C to +125°C.
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