MRMS211M Equivalent & Substitute Parts

Part Overview

The MRMS211M is a magnetoresistive unipolar switch sensor manufactured by Murata Electronics, designed for digital switching applications with push-pull output configuration. This component operates across a supply voltage range of 1.6V to 4.6V with a maximum supply current of 12µA and features temperature compensation for stable operation across -40°C to 85°C. The product is currently obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

MRMS211M

Murata ElectronicsIn Stock: 755MRMS211M Datasheet

Current PartRFQ

MRMS201A-001

Murata ElectronicsIn Stock: 16523MRMS201A-001 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MRMS211M is based on the following critical parameters that must align for functional compatibility:

Mandatory Alignment Parameters:

• Magnetoresistive technology platform
• Surface mount 3-MM package (TO-236-3, SC-59, SOT-23-3)
• Supply voltage range: 1.6V ~ 4.6V
• Supply current specification: 12µA maximum
• Operating temperature range: -40°C ~ 85°C
• Base product family: MRMS2 series

Functional Considerations: The MRMS211M operates as a unipolar switch with push-pull output and south pole polarization. Substitute components must maintain electrical compatibility within the specified voltage and current parameters while accommodating the physical form factor constraints of the 3-MM package.

Parameter Comparison

Engineering Selection Recommendations

The MRMS201A-001 serves as the manufacturer-recommended substitute for the obsolete MRMS211M. Both components share the same supply voltage range (1.6V ~ 4.6V), maximum supply current (12µA), operating temperature range (-40°C ~ 85°C), and physical package specifications (TO-236-3, SC-59, SOT-23-3).

Key differences exist in functional behavior and sensing characteristics. The MRMS211M operates as a unipolar switch with push-pull output, while the MRMS201A-001 functions as a latch with digital output. The MRMS201A-001 supports dual polarization (North Pole and South Pole) compared to the MRMS211M's south pole-only configuration, and exhibits different sensing thresholds (2.5mT trip / 0.5mT release versus 2.1mT trip / 0.9mT release).

The MRMS201A-001 carries active product status and ROHS3 compliance certification, providing long-term availability and regulatory alignment for new designs and legacy system replacements.

Frequently Asked Questions (FAQ)

Q: Can the MRMS201A-001 directly replace the MRMS211M in existing designs?

A: Both components share identical supply voltage (1.6V ~ 4.6V), supply current (12µA maximum), operating temperature range (-40°C ~ 85°C), and package form factor (TO-236-3, SC-59, SOT-23-3). However, functional differences exist: the MRMS211M is a unipolar switch with push-pull output, while the MRMS201A-001 is a latch with digital output. Circuit-level compatibility depends on whether the application can accommodate latch functionality and digital output characteristics in place of unipolar switch and push-pull operation.

Q: What are the sensing range differences between these components?

A: The MRMS211M operates with a 2.1mT trip threshold and 0.9mT release threshold. The MRMS201A-001 operates with a 2.5mT trip threshold and 0.5mT release threshold. These differences affect magnetic field sensitivity and hysteresis characteristics and must be evaluated against application-specific magnetic field requirements.

Q: Does the MRMS201A-001 support the same polarization as the MRMS211M?

A: The MRMS211M is configured for south pole polarization only. The MRMS201A-001 supports both north pole and south pole polarization, providing greater flexibility for magnetic field orientation in system designs.

Q: What is the packaging difference between these components?

A: Both components use identical surface mount 3-MM packages (TO-236-3, SC-59, SOT-23-3). The MRMS201A-001 is supplied in Tape & Reel (TR) packaging format, while the MRMS211M packaging format is not specified in available documentation.

Q: Are there compliance or regulatory differences?

A: The MRMS201A-001 carries ROHS3 compliance certification. The MRMS211M compliance status is not specified. Both components share identical REACH status (REACH Unaffected), ECCN classification (EAR99), and HTSUS code (8536.41.0030).