Current sense transformers provide reinforced insulation
Able to sense current up to 40A, Coilcraft’s CST2020 series current sense transformers operate over a frequency range of 400Hz to 1.0MHz and offer 4000V rms isolation voltage between the sense and output windings. They provide Reinforced Insulation per UL 60950-1.
The CST2020 series current sense transformers provide output feedback for load current measurement and control in switching power supplies and overload/short-circuit protection. They are qualified to AEC-Q200 Grade 1 (-40 to +125 degree C) standards, making them suitable for automotive applications like current measurement in traction motor and battery management systems, says Coilcraft. They are also well suited for use in 48V vehicle systems. Other applications include aerospace power management systems, three-phase solar inverters, industrial motor controls and other applications requiring high isolation between the sense and output windings.
The CST2020 series is available with four turns ratios ranging from 1:70 to 1:300, and offers very low sense resistance of 0.00084-Ohms.
Free evaluation samples are available online now. Parts are available from stock.
Headquartered outside of Chicago in Cary, Illinois, USA, Coilcraft supplies magnetic components including high performance RF chip inductors, power magnetics and filters. In addition to a large selection of standard components, Coilcraft also designs and builds custom magnetics to fit a customer’s exact electrical requirements.
In independent surveys, engineers consistently rank Coilcraft the number one magnetics company they would recommend to a friend.
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