HM1188NLT

Overview

The Pulse Electronics HM1188NLT is a high-performance, surface-mount common mode choke designed for data line protection. It features a compact 0603 (1608 metric) package, enabling integration into space-constrained printed circuit boards. The component provides effective suppression of electromagnetic interference and radio frequency interference in high-speed digital circuits. Its construction utilizes advanced magnetic materials to ensure stable performance across varying temperature conditions while maintaining low insertion loss for signal integrity.

Feature Summary

• Provides robust common mode noise attenuation for high-speed data interfaces
• Optimized for minimal signal distortion in differential signaling applications
• Designed for reliable operation under demanding thermal environments

Applications

• High-speed USB interface protection
• HDMI and DisplayPort signal line filtering
• Ethernet port EMI suppression

Procurement Notes

Verify the specific suffix code on the ordering information to confirm the exact termination plating and reel quantity specifications. Ensure that the selected variant matches the required impedance tolerance and current rating for the target application design. Cross-reference the manufacturer's latest datasheet to confirm compliance with RoHS directives and halogen-free status before finalizing procurement orders.

Selection Notes

Select this component based on its physical footprint compatibility with existing board layouts and its electrical characteristics relative to the target data rate. Evaluate the DC resistance and saturation current parameters against the specific power requirements of the connected interface. Confirm that the impedance profile at the operating frequency aligns with the necessary noise suppression levels defined by the system EMC standards.

Part Context

This component belongs to Pulse Electronics' series of surface-mount passive filters intended for consumer electronics and telecommunications equipment. It addresses the growing demand for compact EMI solutions in portable devices where board real estate is limited. The product line emphasizes consistency in manufacturing quality to support high-volume assembly processes in modern electronics manufacturing.

Replacement Considerations

Consult official substitution guides for compatible alternatives within the same family or from other manufacturers offering equivalent 0603 common mode chokes. Verify that any substitute part maintains identical impedance values and current handling capabilities to ensure no degradation in signal integrity or noise suppression performance.