Bourns, Inc. Announces New Series of Automotive-Qualified Planar Signal Transformers
Bourns Introduces the SM91808AL: An AEC-Q200 Compliant BMS Signal Transformer
Bourns Magnetics Product Line has launched the Model SM91808AL, an AEC-Q200 compliant, automotive-grade Battery Management System (BMS) signal transformer designed for next-generation applications. This single-channel basic insulation transformer utilizes a planar structure optimized for BMS applications in electric vehicles (EVs), hybrid electric vehicles (HEVs), and energy storage systems.
The Model SM91808AL is specifically designed for compatibility with leading BMS ICs, including Analog Devices' LTC6815 Series, NXP’s MC33771C Series, and Texas Instruments’ BQ79616. Manufactured with full automation, the SM91808AL ensures high quality and cost-effectiveness. Its low-profile, no-base design results in a height of under 3.5 mm above the PCB, making it suitable for space-constrained applications. The model offers a working voltage of up to 1000 VDC and a high-potential (hi-pot) isolation voltage of up to 4300 VDC (or 2500 VAC), providing robust isolation in high-voltage battery systems. It also features an extended operating temperature range from -40°C to +125°C, making it suitable for demanding automotive and industrial environments.
Key Features of the Model SM91808AL:
- Planar Technology: Utilizes planar technology optimized for next-generation BMS signal applications, offering advantages in size, performance, and reliability.
- Low Profile Design: Features a low-profile design with a height of under 3.5 mm above the PCB, ideal for space-constrained applications.
- High Working Voltage: Supports a working voltage of up to 1000 VDC, suitable for high-voltage battery systems.
- High Isolation Voltage (Hi-Pot): Offers a high-potential isolation voltage of up to 4300 VDC or 2500 VAC, providing robust isolation and safety.
- Basic Insulation: Compliant with IEC 60664-1, IEC 61558-1, and IEC 62368-1 standards for basic insulation.
- Enhanced Safety Features:
- Clearance distance > 8.2 mm, Pollution degree 2
- Material group CTI I (Comparative Tracking Index)
- Creepage distance > 8.2 mm, Over-voltage Category II, up to 2 km above sea level
- Partial discharge level up to 1200 V per IEC 60664
- Wide Operating Temperature Range: Operates reliably across an extended temperature range from -40°C to +125°C, suitable for demanding environments.
- Environmental Compliance: RoHS compliant and halogen-free, meeting environmental regulations.
- Automotive Qualification: AEC-Q200 compliant, ensuring suitability for automotive applications.
Key Applications of the Model SM91808AL:
- Battery management systems (BMS) in EVs, HEVs, and other battery-powered applications.
- Energy storage systems (ESS) for grid storage, backup power, and other energy management applications.
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