BLF820

Overview

The BLF820 is a sixth-order band-pass EMI/RFI filter manufactured by TE Connectivity Corcom Filters. It utilizes LC technology and features two channels with an inductance of 2µH and capacitance of 820pF per channel. The component has a current rating of 2.2 A and a voltage rating of 56.6V. It is designed for data line protection in mobile devices and portable electronics, offering compliance with ELV standards.

Feature Summary

• Sixth-order band-pass filtering architecture for enhanced noise suppression
• Dual-channel configuration supporting differential signal lines
• Compact LC network design integrating specific inductance and capacitance values

Applications

• Data lines for mobile devices
• Portable electronic equipment
• Battery chargers

Procurement Notes

Verify the obsolete status of this part number before initiating procurement processes. Confirm availability through authorized distributors or secondary market suppliers, as standard manufacturing supply may be discontinued. Ensure that any sourced units meet original specification requirements for critical mobile device applications.

Selection Notes

Select this component specifically for applications requiring sixth-order band-pass characteristics on dual data lines. The 2.2A current rating and 56.6V voltage limit define its operational boundaries. Consider alternative active filters if higher current handling or different frequency responses are required for modern high-speed interfaces.

Part Context

This component belongs to the TE Connectivity Corcom Filters portfolio, specializing in EMI/RFI suppression solutions. The BLF820 represents a specialized LC network solution distinct from their standard power line filters, targeting sensitive data transmission lines rather than AC power inputs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation due to the obsolete status of the BLF820. Engineering teams should evaluate equivalent sixth-order band-pass LC filters from other manufacturers or newer TE Connectivity series with compatible electrical parameters.

FAQ

What is the order of the filter topology used in the BLF820?

The BLF820 utilizes a sixth-order band-pass filter topology.

Does the BLF820 support single-ended or differential signals?

It features a two-channel configuration, indicating support for differential signal lines.