High-Reliability Closed-Loop Power Line Filter for Switch Mode Power Supplies -

Product Specification

Engineered for robustness, our LEF17T series Power Line Filter features a closed-loop core for superior EMI suppression in 20-90W designs. Achieve high efficiency & compliance in power adapters, LED drivers, and industrial systems.

Product Description

Build unparalleled reliability into your power electronics with the LEF17T series, a premium Power Line Filter designed to serve as the foundation for noise-free operation. This component integrates critical common mode and differential mode filtering within a single, high-performance 90W Power Supply EMI Filter, effectively eliminating conductive noise across a broad frequency spectrum. Its advanced closed magnetic circuit construction ensures maximum efficiency and minimal flux leakage, providing a cleaner and more stable power delivery that is essential for modern, dense PCB layouts. Selecting this robust Power Line Filter is a decisive step toward enhancing product durability and achieving global EMC certification with confidence, making it an indispensable 90W Power Supply EMI Filter for quality-conscious manufacturers.

Key Features & Benefits

• Advanced Closed-Loop Design: The heart of this Power Line Filter is a closed magnetic circuit core, which significantly reduces electromagnetic interference (EMI) radiation and improves overall filtering efficiency compared to open-core designs, a critical feature for any high-performance 90W Power Supply EMI Filter.
• Exceptional Safety Compliance: Certified with high-grade insulation (withstands AC 1000V between windings) and high insulation resistance (100 MΩ Min. at 500V DC), this Power Line Filter guarantees safe operation and protects end-users, mitigating risks in your final application.
• Optimized for Thermal Management: Designed with low DC resistance (DCR) and rated for currents up to 0.8A, this 90W Power Supply EMI Filter maintains a low temperature rise, ensuring long-term stability and preventing thermal degradation in continuous operation.
• Simplified Design-In Process: By combining two filtering functions into one monolithic package, this Power Line Filter accelerates your development cycle, reduces assembly costs, and minimizes the footprint on your PCB.

Target Applications

This versatile and robust Power Line Filter is ideally suited for noise suppression in a wide array of applications, including but not limited to:

• 90W Power Supply EMI Filter for laptop adapters, LED drivers, and electronic ballasts.
• Power input stages of Industrial Control Systems and Automation equipment.
• Telecom and Networking infrastructure power modules.
• Consumer electronics, including LCD/PDP televisions and computer peripherals.
  It helps products comply with FCC, VCCI, CISPR, and other major international EMC standards.

Technical Specifications

(Detailed specifications are provided for reference; please refer to the official datasheet for comprehensive design-in data.)

Technical Notes

• Test Condition: Inductance measured at 10kHz, 50mV, 0A DC.

• Rated Current: Defined as the current causing a temperature rise of ΔT=40°C (Ta=25°C).

• Operating Temperature Range: -50°C to +110°C.

Our Commitment to Your Success

We provide more than just components; we offer solutions that empower innovation. Our technical support team is ready to assist you in integrating this high-performance Power Line Filter into your designs.

Next Steps

• Download the full technical datasheet for complete performance data.

• Request Samples to validate performance in your specific application circuitry.

• Contact our engineering support to discuss custom requirements or application-specific solutions. Let's work together to optimize your product's performance and reliability.