MEM2012T201RT0S1 Equivalent & Substitute Parts

Part Overview

The MEM2012T201RT0S1 is a 3rd order LC (T-Type) EMI filter manufactured by TDK Corporation, designed for low-pass filtering applications in data line circuits for mobile devices. This component operates at a 200 MHz cutoff frequency with 30 dB attenuation across the 530 MHz to 2.5 GHz range, supporting up to 250 mA current at 10V rated voltage in a compact 0805 (2012 Metric) surface mount package.

The MEM2012T201RT0S1 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for applications utilizing this filter specification.

Key Parameters

Parameter	Value
Manufacturer Part Number	MEM2012T201RT0S1
Manufacturer	TDK Corporation
Series	MEM
Product Status	Obsolete
Filter Type	Low Pass, 3rd Order
Technology	LC (T-Type)
Number of Channels	1
Center / Cutoff Frequency	200 MHz
Attenuation Value	30 dB @ 530 MHz ~ 2.5 GHz
Current Rating	250 mA
Voltage - Rated	10 V
Operating Temperature Range	-40°C ~ 85°C
Package / Case	0805 (2012 Metric), 3 PC Pad
Size / Dimension	0.079" L x 0.049" W (2.00 mm x 1.25 mm)
Height	0.039" (1.00 mm)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Applications	Data Lines for Mobile Devices

Substitute Part Grouping Explanation

Substitution eligibility for the MEM2012T201RT0S1 is determined by strict equivalence across the following critical parameters:

Filter Specification: Type (Low Pass), Order (3rd), Technology (LC T-Type), and Cutoff Frequency (200 MHz)
Electrical Performance: Attenuation Value (30 dB @ 530 MHz ~ 2.5 GHz), Current Rating (250 mA), Voltage Rating (10 V)
Physical Compatibility: Package Type (0805 / 2012 Metric, 3 PC Pad), Mounting Type (Surface Mount), Footprint Dimensions (2.00 mm x 1.25 mm)
Environmental & Compliance: Operating Temperature Range (-40°C ~ 85°C), RoHS3 Compliance, MSL Level 1

The substitute part MEM2012S201RT001 meets all these criteria and is manufactured by the same supplier (TDK Corporation) within the same MEM series, ensuring functional and mechanical interchangeability.

Parameter Comparison

Parameter	MEM2012T201RT0S1 (Main)	MEM2012S201RT001 (Substitute)	Compatibility
Manufacturer	TDK Corporation	TDK Corporation	Match
Series	MEM	MEM	Match
Product Status	Obsolete	Active	Substitute Available
Filter Type	Low Pass, 3rd Order	Low Pass, 3rd Order	Match
Technology	LC (T-Type)	LC (T-Type)	Match
Number of Channels	1	1	Match
Center / Cutoff Frequency	200 MHz	200 MHz	Match
Attenuation Value	30 dB @ 530 MHz ~ 2.5 GHz	30 dB @ 530 MHz ~ 2.5 GHz	Match
Current Rating	250 mA	250 mA	Match
Voltage - Rated	10 V	10 V	Match
Operating Temperature Range	-40°C ~ 85°C	-40°C ~ 85°C	Match
Package / Case	0805 (2012 Metric), 3 PC Pad	0805 (2012 Metric), 3 PC Pad	Match
Size / Dimension	0.079" L x 0.049" W (2.00 mm x 1.25 mm)	0.079" L x 0.049" W (2.00 mm x 1.25 mm)	Match
Height	0.039" (1.00 mm)	0.037" (0.95 mm)	Compatible (Within tolerance)
Mounting Type	Surface Mount	Surface Mount	Match
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Match
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Match
Applications	Data Lines for Mobile Devices	Data Lines for Mobile Devices	Match

Engineering Selection Recommendations

The MEM2012S201RT001 is the direct equivalent substitute for the obsolete MEM2012T201RT0S1. Both components are manufactured by TDK Corporation and share identical electrical specifications, filter characteristics, and physical footprints. The primary distinction is product status: MEM2012S201RT001 is currently in active production, ensuring supply chain availability and long-term support.

Both parts maintain ROHS3 compliance and MSL Level 1 rating, meeting environmental and handling requirements for mobile device data line applications. The negligible height difference (0.04 mm) between the two parts falls within standard PCB assembly tolerances and does not impact functional performance or mechanical fit.

For new designs or ongoing production requiring the MEM2012T201RT0S1 specification, MEM2012S201RT001 is the appropriate selection. The difference in packaging designation (T201RT0S1 versus S201RT001) reflects manufacturing process updates while maintaining full electrical and mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can MEM2012S201RT001 be used as a direct replacement for MEM2012T201RT0S1 in existing designs?

A: Yes. Both parts are functionally and mechanically equivalent. They share identical filter specifications (200 MHz cutoff, 3rd order LC T-Type, 30 dB attenuation), electrical ratings (250 mA, 10 V), and physical dimensions (0805 / 2012 Metric package). The height difference of 0.04 mm is within standard PCB assembly tolerances.

Q: What is the primary reason for substitution?

A: MEM2012T201RT0S1 is classified as obsolete. MEM2012S201RT001 is the active production equivalent, ensuring continued component availability and supply chain reliability.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, carry MSL Level 1 rating, and are suitable for data line applications in mobile devices. No additional qualification or testing is required for substitution.

Q: Does the packaging format differ between these parts?

A: The main part (MEM2012T201RT0S1) uses standard packaging, while the substitute (MEM2012S201RT001) is supplied in Tape & Reel (TR) format. Both maintain identical component specifications and PCB footprints. Tape & Reel packaging is standard for high-volume surface mount assembly.

Q: Are there any electrical performance differences?

A: No. Both parts deliver identical attenuation characteristics (30 dB @ 530 MHz ~ 2.5 GHz), current handling (250 mA), voltage rating (10 V), and operating temperature range (-40°C ~ 85°C).

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