MEM2012W121R

Overview

The MEM2012W121R is a surface-mount EMI/RFI filter manufactured by TDK Corporation. It operates within a temperature range of -40°C to +85°C and features a single channel with a cutoff frequency of 120 MHz. The component supports a maximum current of 100 mA and lacks integrated ESD protection. Its physical dimensions are 2.00 mm in length, 1.25 mm in width, and 2.20 mm in height, conforming to the 0805 (2012 Metric) package standard.

Feature Summary

• Provides signal filtering for data lines through defined cutoff frequency characteristics
• Designed for compact surface-mount integration using a standardized 0805 footprint
• Capable of operation across a wide industrial temperature spectrum

Applications

• Data line filtering for mobile devices
• EMI suppression in portable electronics
• Signal integrity maintenance in compact circuit boards

Procurement Notes

Verify the specific datasheet version and RoHS compliance status directly with TDK or authorized distributors before procurement. Confirm that the 100 mA current rating and 120 MHz cutoff frequency align with your circuit requirements. Ensure the 0805 package dimensions fit your PCB layout constraints. Check for any specific handling instructions related to the component's thermal and electrical limits.

Selection Notes

Select this component when a low-profile, single-channel filter is required for high-speed data lines in mobile applications. The 120 MHz cutoff frequency makes it suitable for suppressing noise above this threshold while passing lower frequency signals. Consider the 100 mA current limit when designing power or high-current data paths. The absence of ESD protection means additional protection may be needed if electrostatic discharge is a primary concern.

Part Context

This part belongs to TDK's MEM2012W series of EMI/RFI filters. These components are engineered for use in space-constrained environments typical of modern consumer electronics. The series offers various cutoff frequencies and current ratings to suit different signal integrity needs. As a passive filter, it complements other TDK components like capacitors and inductors in comprehensive noise suppression strategies.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.