Current Sensors

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S4sensors stands for Smart Sensors System Solutions. Based in Landshut, Germany, the company has a passion for developing sensor solutions to solve problems in a wide range of customer applications. Products are designed with the complete system in mind to provide intelligent and cost-effective solutions.

Founded in 2020 and part of the SPARC Group, the company offers customized current and position sensors worldwide with development teams in Germany, Bulgaria and Italy.

S4sensors is strengthened by LFoundry's expertise in CMOS technology and manufacturing. This enables them to develop sensors based on a unique Hall technology IP, giving their products outstanding features and benefits. You will experience these benefits in the form of superior sensor performance and a reliable, mature manufacturing and supply chain. Extensive experience in automotive manufacturing is part of the package.

More than just measuring: smart sensors.

Thanks to its patented backside semiconductor technology, the S4Sensors current sensor can measure the magnetic field in the direction parallel to the busbar surface. In addition to the conventional measuring method, the S4-CSA01/CSA02 can significantly reduce the influence of external magnetic fields by using a differential measuring mode. A robust, built-in temperature compensation algorithm provides high stability and excellent long-term drift.

As a result, the Hall effect sensor is ideally suited for use in the electrified powertrain.

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In-house LFoundry with approximately 1,500 employees and a capacity of 40,000 wafers per month

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Very wide current range: +/-3A - +/-2000A and higher

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Operating temperature range: -40°C - +105°C

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Supply voltage range: 4.5V - 5.5V

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No maximum magnetic field limitation and no hysteresis error thanks to unique backside vertical Hall sensor technology

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No significant busbar modification required compared to non-SFI solutions thanks to side measurement direction

Further product groups

Power semiconductors

Thermal interface
material

Magnetics

Film capacitors