Reliable insulation and communication for next-generation battery systems
Elec & Eltek offers a robust range of transformers specifically designed for Battery Management Systems (BMS), ensuring safe high-voltage insulation, reliable signal transmission, and compatibility with serial communication protocols. These components are ideal for electric vehicles (EVs), hybrid electric vehicles (HEVs), and energy storage systems (ESS), where safety, efficiency, and long-term durability are critical.
Key Benefits
🔹 High-Voltage Insulation
- Rated up to 4300 V for safe operation in high-energy battery environments
- Fully compliant with AEC-Q200 automotive-grade standards
- Functional insulation protects systems from voltage surges and potential differences
🔹 Optimized for Serial Communication
- Supports isoSPI and SPI daisy-chain connections
- High common-mode rejection ratio (CMRR) and low insertion loss ensure signal integrity
- Compact form factor for seamless integration into space-constrained BMS layouts
🔹 Wide Temperature Operating Range
- Reliable performance from -40 °C to +125 °C (up to +150 °C for selected models)
- Designed for demanding automotive environments
🔹 EMI Suppression and Signal Stability
- Engineered to reduce electromagnetic interference
- Return loss up to -20 dB @ 4 MHz enhances signal reliability
- Minimum insulation resistance of 400 MΩ ensures long-term data stability
🔹 Compact and Durable Package
- Surface-mount 6-pin transformers with footprints as small as 7.62 × 9.27 × 5.72 mm
- Creepage distance exceeding 5 mm for added electrical safety
Target Applications
- EV/HEV Systems:
Ensure safe insulation between high-voltage battery cells and control units. Reliable communication across daisy-chained BMS modules.
- Energy Storage Systems (ESS):
Used in battery-based energy management platforms. Improve system longevity and operational safety.
- Industrial and Renewable Installations:
Suitable for power electronics in solar, wind, and grid applications requiring high isolation integrity.
Why Choose Elec & Eltek for Your BMS Design?
✅ Automotive-Grade Reliability: Built to meet AEC-Q200 qualifications
✅ Compact, High-Efficiency Design: Strong insulation, EMI control, and thermal stability
✅ Custom Solutions Available: Tailored options for specific BMS configurations
✅ Designed for Harsh Conditions: Withstands extreme temperatures and electrical stress
An Efficient and Competitive Alternative for Modern BMS Designs
Elec & Eltek’s BMS transformers provide a high-performance, cost-effective solution referenced in designs from qualified automotive manufacturers. Whether you’re developing next-gen EV platforms or scaling energy storage systems, these transformers offer the insulation, signal clarity, and durability your application demands.
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