HCT80403EAL-E

Overview

The HCT80403EAL-E is an automotive-grade pulse transformer from the Bourns HCT8xEAL series, designed for board mount applications. It features a single primary and single secondary winding with a turns ratio of 4:3. The component provides high isolation capability with a potential of 5kVDC and maintains clearance and creepage distances of 8.0mm. Key electrical parameters include an inductance of 160µH and a DC resistance of 0.45 ohms. It operates within a temperature range of -40°C to +125°C and utilizes a gull-wing SMD package measuring 14.2mm x 10.6mm x 8.0mm.

Feature Summary

• Delivers high clearance and creepage insulation performance suitable for demanding safety standards
• Supports wide operating temperature ranges for reliable automotive and industrial environments
• Features surface mount gull-wing terminals for automated assembly integration

Applications

• Automotive power supply circuits requiring AEC-Q200 compliance
• Industrial signal isolation interfaces
• Board mount pulse transformation systems

Procurement Notes

Verify that the specific part number matches the required 4:3 turns ratio and 5kVDC isolation voltage for your design. Confirm the gull-wing package dimensions align with your PCB footprint constraints. Ensure the supplier provides documentation confirming AEC-Q200 automotive grade certification. Check lead times as manufacturing cycles may vary. Validate that the component meets your specific thermal management requirements for the -40°C to +125°C operating range.

Selection Notes

Select this component when high voltage isolation with significant physical spacing is critical. The 8.0mm clearance makes it suitable for applications where standard transformers fail safety regulations. Consider the 160µH inductance value for your circuit timing requirements. The gull-wing package offers robust mechanical stability compared to other SMD styles. Evaluate the 0.45 ohm DC resistance against your power loss constraints.

Part Context

This transformer belongs to the HCT8xEAL series, which focuses on high creepage and clearance capabilities. These components are engineered to bridge gaps between isolated sections of a circuit board while maintaining compact footprints. The series supports various input voltages and output configurations through different turn ratios. They are widely used in automotive electronics where space and safety margins are tightly constrained.

Replacement Considerations

Direct substitutes within the same series include the HCT80803EAL-E, which shares similar physical dimensions but differs in electrical specifications such as turns ratio. Verify compatibility by comparing isolation ratings and inductance values before substitution. Cross-reference datasheets to ensure pinout and package integrity match your existing design layout.