MEM2012W211R LC EMI Filter Equivalent & Substitute Parts

Part Overview

The MEM2012W211R is a 5th order LC low pass EMI filter manufactured by TDK Corporation, designed for data line applications in mobile devices. This component features a 210 MHz cutoff frequency, 100 mA current rating, and 0805 (2012 metric) surface mount packaging with 3 pad configuration. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

MEM2012W211R

TDK CorporationIn Stock: 1222MEM2012W211R Datasheet

Current PartRFQ

MEM2012V211RT001

TDK CorporationIn Stock: 6591MEM2012V211RT001 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MEM2012W211R is determined by strict alignment of the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Filter type: Low Pass
• Filter order: 5th
• Cutoff frequency: 210 MHz
• Current rating: 100 mA
• Voltage rating: 10V
• Number of channels: 1
• Mounting type: Surface Mount
• Package / Case: 0805 (2012 Metric), 3 PC Pad
• Operating temperature range: -40°C ~ 85°C
• Moisture sensitivity level: 1 (Unlimited)

The MEM2012V211RT001 qualifies as a direct substitute based on matching all critical electrical parameters and identical mechanical specifications. The primary distinction is the technology variant (LC Pi versus LC) and packaging format (Tape & Reel versus Cut Tape), with the substitute offering enhanced attenuation characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The MEM2012V211RT001 is the manufacturer-recommended substitute for the obsolete MEM2012W211R. Selection of this substitute is supported by the following factors:

Product Status: The MEM2012W211R is obsolete, while MEM2012V211RT001 maintains active product status with confirmed inventory availability (6562 pcs), ensuring long-term supply chain reliability.

Compliance & Certifications: MEM2012V211RT001 is ROHS3 compliant, providing enhanced environmental compliance compared to the main part. Both components maintain REACH Unaffected status and EAR99 classification.

Electrical Compatibility: All critical electrical parameters align identically: 210 MHz cutoff frequency, 100 mA current rating, 10V voltage rating, 5th order low pass topology, and single channel configuration. The LC (Pi) technology variant in the substitute provides documented attenuation of 20dB across the 350MHz to 2GHz frequency range.

Mechanical Compatibility: Identical package specification (0805 / 2012 Metric, 3 PC Pad), footprint dimensions (2.00mm x 1.25mm), and operating temperature range (-40°C ~ 85°C) ensure direct PCB compatibility. The reduced height (1.00mm versus 2.20mm) presents no functional constraint and may offer assembly advantages.

Packaging Consideration: The substitute is supplied in Tape & Reel format, standard for production environments, whereas the main part was supplied in Cut Tape format. This represents a packaging transition typical for component lifecycle management.

Frequently Asked Questions (FAQ)

Q: Can MEM2012V211RT001 be used as a direct replacement for MEM2012W211R in existing designs?

A: Yes. Both components share identical electrical specifications (210 MHz cutoff, 100 mA current, 10V rating, 5th order low pass topology) and mechanical footprint (0805 / 2012 Metric, 3 PC Pad). The substitute is the manufacturer-recommended equivalent.

Q: What is the difference between LC and LC (Pi) filter technology in these parts?

A: Both are 5th order low pass topologies with identical cutoff frequency and current ratings. The LC (Pi) variant in MEM2012V211RT001 provides documented attenuation performance of 20dB across 350MHz to 2GHz. The main part does not specify attenuation values.

Q: Does the height difference (2.20mm vs 1.00mm) affect PCB assembly?

A: No. The reduced height of MEM2012V211RT001 (1.00mm) is fully compatible with the original 0805 footprint and may provide assembly benefits. No PCB layout modifications are required.

Q: What is the significance of the packaging format change from Cut Tape to Tape & Reel?

A: Tape & Reel is the standard production packaging format. This change reflects normal component lifecycle management and does not affect electrical or mechanical performance. Tape & Reel packaging is suitable for automated assembly processes.

Q: Are there any compliance differences between the two parts?

A: MEM2012V211RT001 is ROHS3 compliant, providing enhanced environmental compliance. Both parts maintain REACH Unaffected status and EAR99 classification. The substitute offers improved regulatory alignment.

Q: Is inventory availability a factor in selecting the substitute?

A: Yes. MEM2012W211R is obsolete with limited availability. MEM2012V211RT001 is active with 6562 pcs in stock, ensuring reliable supply for current and future production requirements.