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FG-R02-4A is listed in the Current Sensors range at ChipApex. The manufacturer field lists KEMET. Its product description is FLUX GATE TYPE RESIDUAL CURRENT. Review the specifications below when checking this part for your BOM.
The KEMET FG-R02-4A is a fluxgate-based residual current sensor designed for high-sensitivity AC and DC leakage detection. It operates on a 4.75V to 5.25V supply with a maximum current draw of 13mA. The device features a 34.45mm bore and measures frequencies up to 55Hz. Response times are specified at 250ms for AC and 1s for DC, with an overall response time listed as 280ms in some documentation. It functions as an open-loop sensor suitable for board mounting.
Verify the specific datasheet version when ordering, as response time specifications may vary slightly between 250ms/1s and 280ms across different documentation sources. Confirm that the 5V supply requirement aligns with your system design. Ensure the 34.45mm bore diameter accommodates the target conductor or cable size for proper installation.
Select this component when precise detection of both alternating and direct current leakage is required. The fluxgate principle offers superior stability compared to simple transformer-based sensors. Consider the 13mA power consumption if battery efficiency is critical. The analog output allows for custom thresholding rather than relying solely on digital alarms.
This part belongs to the KEMET FG Series, which utilizes fluxgate technology for residual current sensing. The series includes various models tailored for different current ratings and bore sizes. The FG-R02-4A specifically targets applications needing reliable detection of small leakage currents in mixed AC/DC environments.
No public confirmed substitute part numbers are available in the provided data. Consult KEMET technical support for cross-referencing alternatives based on bore size and sensitivity requirements.
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