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Bourns Introduces Semi-Shielded Power Inductor Series with Polarity Control for Optimized EMI Suppression

New automotive grade, AEC-Q200 compliant SRN5040TA-P Series meets stringent temperature and reliability requirements for advanced automotive systems

RIVERSIDE, Calif., September 24, 2025 – Bourns, Inc., a leading manufacturer and supplier of electronic components for power, protection, and sensing solutions, today announced its SRN5040TA-P Series of Semi-Shielded Power Inductors. The new series features polarity control that optimizes Electromagnetic Interference (EMI) protection for a wide range of automotive systems. These automotive grade, AEC-Q200 compliant semi-shielded power inductors provide excellent power management performance and thermal stability, meeting the demanding temperature and reliability requirements of advanced systems, including DC-DC converters, power supplies, driver assistance, infotainment and lighting systems.

The new SRN5040TA-P semi-shielded power inductors feature a specialized construction that minimizes magnetic field radiation while delivering high heating current and saturation current capabilities. In addition, the series supports a wide operating temperature range of -55 °C to +125 °C, making it ideal for space-constrained automotive applications. The semi-shielded design utilizes a magnetic-epoxy coating around the winding perimeter, providing effective EMI suppression and lower magnetic field radiation compared to non-shielded inductors.

The Bourns® SRN5040TA-P Series is available now through Bourns’ authorized distribution partners. It is RoHS* compliant and halogen** free. For more detailed product information, please see: bourns.com/products/magnetic-products/power-inductors-aec-q200-compliant.

About Bourns
Bourns, Inc. is a leading manufacturer and supplier of position and speed sensors, circuit protection solutions, magnetic components, microelectronic modules, panel controls and resistive products. Headquartered in Riverside, California, USA, Bourns serves a broad range of markets, including automotive, industrial, consumer, communications, medical (low/medium risk)***, audio and various other market segments. Additional company and product information is available at www.bourns.com.

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