HCT80809EAL-E

Overview

The HCT80809EAL-E is an automotive-grade pulse transformer from the Bourns HCT8 series, designed for board mount applications. It features a single primary and single secondary winding with an 8:9 turns ratio. Key electrical parameters include an inductance of 160 µH, DC resistance of 0.65 ohms, and an ET constant of 14 Vµs. The device supports an isolation voltage of 5 kVDC and operates within a temperature range of -40°C to +125°C. Its surface-mount package measures 14.2 mm in length, 10.6 mm in width, and 8 mm in height.

Feature Summary

• High clearance and creepage design optimized for safety isolation requirements
• AEC-Q200 qualified for reliable performance in demanding automotive environments
• Compact surface-mount footprint suitable for space-constrained circuit boards

Applications

• Automotive power electronics systems
• Isolated gate drive circuits
• Signal transmission in high-voltage automotive modules

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number and date code against official Bourns documentation. Ensure the received units match the specified HCT80809EAL-E designation to confirm correct turns ratio and insulation ratings. Check packaging integrity to prevent damage to the surface-mount terminals during handling and storage.

Selection Notes

Select this component when a specific 8:9 turns ratio and 160 µH inductance are required for isolated signal or power transfer. Consider the 5 kVDC isolation rating and -40°C to +125°C operating range for harsh automotive conditions. Evaluate the 14.2 mm x 10.6 mm x 8 mm dimensions against available PCB real estate and mounting constraints.

Part Context

This part belongs to the Bourns HCT8 Series of automotive isolation transformers. The series is characterized by high reliability and compliance with AEC-Q200 standards. These components are engineered for use in automotive electronic control units and power management systems requiring robust galvanic isolation.

Replacement Considerations

The HCT80308EAL-E is a related model within the same HCT8 series but features a different 3:8 turns ratio. Verify that the specific turns ratio and electrical characteristics of the replacement match the original circuit design requirements before substitution.