MEM2012W181R Equivalent & Substitute Parts

Part Overview

The MEM2012W181R is an LC (Pi) EMI filter manufactured by TDK Corporation, designed for low-pass filtering applications in data line circuits for mobile devices. This 5th order filter operates at a 180 MHz cutoff frequency with a rated current capacity of 100 mA and is packaged in the 0805 (2012 Metric) surface mount form factor.

The MEM2012W181R carries an Obsolete product status. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this component.

Substiute Parts

MEM2012W181R

TDK CorporationIn Stock: 1024MEM2012W181R Datasheet

Current PartRFQ

MEM2012V181RT001

TDK CorporationIn Stock: 4154MEM2012V181RT001 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MEM2012W181R is determined by the following critical parameters:

• Filter Type: Low Pass
• Filter Order: 5th
• Technology: LC (Pi)
• Number of Channels: 1
• Center / Cutoff Frequency: 180 MHz (Cutoff)
• Current Rating: 100 mA
• Voltage - Rated: 10 V
• Mounting Type: Surface Mount
• Package / Case: 0805 (2012 Metric), 3 PC Pad
• Operating Temperature Range: -40°C ~ 85°C

The substitute part MEM2012V181RT001 matches all critical electrical and mechanical parameters. This part maintains identical filter specifications, current handling capacity, voltage rating, and physical package dimensions, ensuring functional equivalence in the target application.

Parameter Comparison

Engineering Selection Recommendations

The MEM2012V181RT001 is the direct substitute for the obsolete MEM2012W181R. Both parts are manufactured by TDK Corporation and share identical electrical specifications and mechanical packaging.

The MEM2012V181RT001 carries Active product status, ensuring ongoing availability and supply chain support. This part is ROHS3 Compliant, providing enhanced environmental and regulatory compliance compared to the obsolete predecessor.

The primary physical difference is component height: the substitute measures 0.039" (1.00 mm) versus the original 0.087" (2.20 mm). This reduced height may provide design benefits in space-constrained applications while maintaining all functional and electrical equivalence.

Frequently Asked Questions (FAQ)

Q: Can MEM2012V181RT001 be used as a direct replacement for MEM2012W181R?

A: Yes. Both parts are identical in filter type, order, technology, cutoff frequency, current rating, voltage rating, and package dimensions. The substitute is electrically and mechanically equivalent.

Q: What is the significance of the product status difference?

A: MEM2012W181R is Obsolete, meaning it is no longer manufactured or supported. MEM2012V181RT001 is Active, ensuring continued availability and manufacturer support for new designs and replenishment orders.

Q: Does the height difference affect PCB layout compatibility?

A: The substitute part is physically shorter (1.00 mm versus 2.20 mm). PCB layouts designed for the original part will accommodate the substitute without clearance issues. The reduced height may provide additional design flexibility.

Q: Are there compliance differences between the two parts?

A: MEM2012V181RT001 is ROHS3 Compliant. Both parts maintain REACH Unaffected status and EAR99 export classification. The substitute provides enhanced regulatory compliance.

Q: Is the attenuation specification difference significant?

A: MEM2012V181RT001 specifies attenuation of 20 dB @ 300 MHz ~ 2 GHz. This represents documented performance data for the active part. Both parts maintain the same 180 MHz cutoff frequency and 5th order filter characteristics required for the application.