RN112-0.4-02-27M

Overview

The Schaffner RN112-0.4-02-27M is a single-phase EMI filter designed for line voltages up to 250 VAC. It provides common-mode attenuation of at least 60 dB at 1 MHz with a rated current of 0.4 A. The unit features a compact through-hole design suitable for space-constrained applications, utilizing ceramic capacitors and ferrite cores for effective noise suppression in sensitive electronic equipment.

Feature Summary

• Compact through-hole construction for PCB integration
• High common-mode attenuation for signal integrity
• Utilizes ceramic capacitor technology for reliability

Applications

• Medical equipment power supplies
• Industrial control systems
• Consumer electronics audio/video interfaces

Procurement Notes

Verify the specific suffix codes against the manufacturer's latest datasheet to ensure correct pinout and mounting configuration. Confirm that the rated current and voltage specifications match the target circuit requirements before procurement. Check for RoHS compliance status if required by local regulations.

Selection Notes

Select this component when low current consumption under 1 A is required alongside significant EMI reduction. Ensure the physical footprint aligns with the PCB layout constraints. Consider thermal derating factors if operating near maximum ambient temperature limits specified in the official documentation.

Part Context

This model belongs to Schaffner's RN series of single-phase EMI filters. These components are engineered for general-purpose noise suppression in low-power applications. The series emphasizes small form factors while maintaining high performance standards for electromagnetic compatibility in regulated environments.

Replacement Considerations

Consult Schaffner's official cross-reference guide for verified substitutes. Ensure any replacement matches the 0.4 A rating and 250 VAC specification. Verify identical mounting hole patterns and terminal configurations to maintain mechanical compatibility.