IN Brief:
- Cyntec specifies calibration-free shunts and functional safety modules with current measurement accuracy reaching ±0.1% in stated configurations.
- Its vehicle power portfolio includes transformers with claimed size or height reductions and integrated traction-inverter EMI filtering.
- A three-in-one silicon carbide traction inverter module is claimed to reduce package size by 60% and stray inductance by 50%.
Cyntec will present automotive current sensors, magnetic components and silicon carbide power modules at electronica 2026, with specified designs for traction inverters, on-board chargers and AI server power systems. The portfolio includes shunt modules with stated measurement accuracy of up to ±0.1% and integrated inverter hardware for which the company claims substantial package and stray inductance reductions.
Advanced driver assistance processors and sensors draw power through compact conversion stages in the vehicle electronics. Cyntec supplies low-loss inductors for system-on-chip devices and power management ICs, alongside Power over Coax inductors that allow a camera or radar connection to carry both power and high-speed data. The same portfolio includes common mode filters for Automotive Ethernet and CAN communications to control unwanted interference in the links.
Power over Coax requires the power and signal paths to coexist without degrading the camera data. The inductor must carry the required DC current while presenting suitable impedance at the frequencies used for communication. Selecting the part therefore involves current rating, frequency response and the cable interface together. Common mode filtering addresses a related but separate interference mechanism, reducing unwanted noise shared by signal conductors without intentionally blocking the differential data.
Current flowing through a battery disconnect unit must be measured accurately enough to support its protection functions. A resistive shunt develops a voltage as current passes through it, which the measurement circuit converts into a current reading. Temperature-dependent resistance, offsets and interference influence accuracy. Cyntec is presenting calibration-free shunt sensors and modules described as compliant with ASIL-C/D requirements under ISO 26262, with accuracy reaching ±0.1% in designated configurations.
Those measurements can contribute to overcurrent detection, battery monitoring and protective switching. Their value to the safety function depends on more than the shunt alone: signal processing, fault diagnostics and the disconnect device must respond as intended under the operating conditions. The ±0.1% figure and the stated functional safety provisions apply to designated modules and their specified operating conditions.
Magnetic component height affects how an on-board charger fits into a vehicle’s available volume. Cyntec claims that selected charger transformers reduce size or height by up to 30%, while low-profile transformers for high-voltage DC-DC converters reduce height by up to 40%. Core construction, winding losses, isolation requirements and cooling determine which arrangement can meet the converter’s electrical and thermal limits. The percentage reductions are manufacturer comparisons associated with the particular constructions.
Traction inverter electromagnetic interference filters are being integrated into smaller moulded structures. Cyntec specifies reductions of up to 35% in size and 30% in weight for selected designs. The mechanical packaging also has to support current handling and thermal conditions, while the filter’s electrical characteristics must suit the switching waveform and interference spectrum. A smaller filter package therefore requires an accompanying check of the power stage and its mounting arrangement.
The company’s three-in-one SiC traction inverter module uses a leadframe-less package with a uniform cooling design. Cyntec reports a 60% reduction in package size and a 50% reduction in stray inductance relative to its comparison configuration. Stray inductance can contribute to transient voltage overshoot during rapid current changes, making the layout and internal interconnections part of the switching design. Device temperature, isolation and cooling paths remain integral to the assembled module.
Cyntec will also show magnetics and modules for AI servers, where it identifies platforms drawing more than 5 kW at board level. Its applications include power supplies, battery backup units, capacitor banks, rack power shelves and downstream DC-DC converters. These systems share power density and heat removal constraints with automotive converters, although their voltage arrangements and operating requirements differ. The company’s electronica display runs from 10 to 13 November in Hall A6, stand 303.
