TD501D485H-E

Overview

The TD501D485H-E is a digital isolator module manufactured by Mornsun America, LLC. It provides galvanic isolation for RS-485 communication interfaces with a rated isolation voltage of 5000Vrms. The device operates on a supply voltage range of 3V to 5.5V and supports data transmission rates up to 10Mbps. Designed for industrial environments, it functions within an operating temperature range of -40°C to 125°C. The component is housed in a compact surface-mount package suitable for space-constrained PCB layouts.

Feature Summary

• Provides high-voltage galvanic isolation between RS-485 transceivers and microcontrollers
• Supports bidirectional data communication with integrated signal conditioning
• Operates reliably across extended industrial temperature ranges

Applications

• Industrial automation control systems requiring noise immunity
• Building automation networks utilizing RS-485 protocols
• Energy metering devices needing isolated communication channels

Procurement Notes

Verify the specific suffix 'E' against official Mornsun documentation to confirm pinout compatibility and revision status. Check current UL certification validity as recent notices indicate potential archive anomalies affecting post-May 2024 certifications. Ensure sourcing from authorized distributors to guarantee authenticity and traceability.

Selection Notes

Select this component when designing RS-485 networks that require robust isolation against ground potential differences and common-mode noise. Consider the 5000Vrms rating for safety compliance in high-voltage industrial settings. Evaluate the 3V to 5.5V supply range for compatibility with standard logic levels used in embedded controllers.

Part Context

This module belongs to the TD series of digital isolators from Mornsun, which focuses on providing reliable isolation solutions for serial communication interfaces. The series is designed to replace traditional optocouplers in applications demanding higher speed and lower power consumption while maintaining strict safety isolation standards.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing circuit designs before considering alternative components from other manufacturers.