HM5004EFNL

Overview

The HM5004EFNL is a single-channel LAN transformer module manufactured by Pulse Electronics, designed for 1000Base-T applications. It features an inductance of 350 uH and a maximum DC resistance of 650 mOhms. The component supports a frequency range from 1 MHz to 125 MHz and provides an isolation voltage of 1.5 kV. It operates within a temperature range of -40°C to +105°C and holds AEC-Q200 qualification. The physical dimensions are 17.526 mm in length, 16.002 mm in width, and 5.715 mm in height. It utilizes SMD/SMT termination and is unshielded.

Feature Summary

• Supports 1000Base-T Ethernet standards
• AEC-Q200 qualified for automotive reliability
• Single channel signal transformation
• Surface mount construction

Applications

• 1000Base-T network interfaces
• Automotive Ethernet systems
• Signal isolation circuits

Procurement Notes

Verify the exact part number suffix against official Pulse Electronics documentation, as variations such as ENL or EFNL may indicate different packaging or minor specification adjustments. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component when designing for Gigabit Ethernet over twisted pair with automotive grade requirements. Consider the 1.5 kV isolation voltage and wide operating temperature range for harsh environments. Verify that the unshielded design meets electromagnetic interference constraints for the specific board layout and application context.

Part Context

The HM5004EFNL belongs to the HM series of LAN transformers from Pulse Electronics. These components are specialized audio and signal transformers intended for data interface isolation. The series includes various models tailored for different Ethernet speeds and form factors, with this specific model focusing on 1000Base-T performance.

Replacement Considerations

HM5004ENL is listed as an alias for this part number. Verify functional equivalence through official datasheets before substitution.