78253/35MC-R

Overview

The Murata Power Solutions 78253/35MC-R is a surface-mount pulse transformer designed for the MAX253 transceiver. It features a 1:2.27 turns ratio and supports 1500VDC isolation. The component operates within a temperature range of 0°C to 70°C and utilizes toroidal construction. It is RoHS compliant and compatible with both 3.3V and 5V system versions.

Feature Summary

• Toroidal core construction for compact design
• Compatible with MAX253 transceiver applications
• Supports high-frequency operation up to 500kHz

Applications

• MAX253 RS-422/RS-485 transceiver circuits
• Industrial communication interfaces
• Data transmission systems requiring galvanic isolation

Procurement Notes

Verify that the specific suffix matches the required isolation voltage and turns ratio, as variants exist within the series. Confirm the package type corresponds to the surface-mount requirement. Check current lifecycle status, as this component may be subject to obsolescence notices or recommended new designs. Ensure compatibility with the target MAX253 variant regarding input voltage levels.

Selection Notes

Select this component when a surface-mount solution is required for MAX253-based designs. Consider the 1500VDC isolation rating against system safety requirements. Evaluate the 500kHz frequency limit for signal integrity. Compare against through-hole alternatives if board space allows for different form factors.

Part Context

This part belongs to the 78253 series of specialty transformers manufactured by Murata Power Solutions. These components are specifically engineered to interface with Maxim Integrated (now Analog Devices) MAX253 transceivers. The series includes various pinout and ratio configurations to support different industrial communication standards.

Replacement Considerations

Public confirmed substitute part numbers: 78253/35JC-R.