HCTSM81017CAL-E

Overview

The HCTSM81017CAL-E is a surface mount pulse transformer from the Bourns HCT series, designed for isolation and data interface applications. It features a toroid core to ensure high coupling efficiency and low radiation. The component has an inductance of 350µH and a turns ratio of 10:17 between primary and secondary windings. Key electrical specifications include an ET value of 11.0VµS. The device operates within a temperature range of -40°C to 125°C and complies with RoHS3 standards.

Feature Summary

• Toroid core construction provides high magnetic coupling and minimizes electromagnetic radiation.
• Designed specifically for combined power isolation and digital data interface transmission.
• Complies with IEC 60950-1, IEC 62368-1, and IEC 60664-1 safety standards.

Applications

• Isolated DC-DC converter circuits
• Digital communication interfaces requiring galvanic isolation
• Power supply control signal transmission

Procurement Notes

Verify the specific suffix designation when ordering, as variants such as HCTSM81017CAL-E1 exist with different physical dimensions. Confirm current availability status directly with the manufacturer or authorized distributors, as product lifecycle changes may affect stock levels. Ensure the selected package type matches the intended surface mount assembly process requirements.

Selection Notes

Select this component for designs requiring a 10:17 turns ratio in a compact surface mount footprint. The 350µH inductance supports standard pulse transformer driving requirements. Verify that the operating voltage and current ratings align with the specific isolated power domain. Consider the -40°C to 125°C temperature range for environmental suitability.

Part Context

This part belongs to the Bourns HCT series of high-performance pulse transformers. These components are engineered for board-mount applications where space constraints and signal integrity are critical. The series utilizes toroidal geometry to optimize performance metrics such as coupling coefficient and leakage inductance for reliable data and power transfer.

Replacement Considerations

The HCTSM81017CAL-E is listed as a manufacturer-recommended alternative to the HCTSM81017CAL-E1. Note that while electrically similar, the E1 variant differs in physical dimensions (15.20mm vs 12.30mm length). Verify mechanical fit before substitution.

FAQ

What is the primary function of the toroid core in this transformer?

The toroid core is utilized to achieve high magnetic coupling between windings and to minimize electromagnetic radiation interference.

Does this component support both power and data signals?

Yes, it is specified for use in isolation and data interface applications, handling both power transfer and digital signal transmission.