MRMS205A Equivalent & Substitute Parts

Part Overview

The MRMS205A is a unipolar magnetoresistive switch sensor manufactured by Murata Electronics, designed for digital switching applications with push-pull output configuration. This component operates in the 3-5.5V supply range with a 3mT trip threshold and 0.2mT release threshold, suitable for surface mount applications in the TO-236-3/SOT-23-3 package format.

The MRMS205A is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently utilizing this sensor.

Substiute Parts

MRMS205A

Murata ElectronicsIn Stock: 791MRMS205A Datasheet

Current PartRFQ

MRMS205A-001

Murata ElectronicsIn Stock: 3333MRMS205A-001 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MRMS205A is determined by strict equivalence across the following critical parameters:

• Function: Unipolar Switch operation
• Technology: Magnetoresistive sensing
• Polarization: South Pole detection
• Sensing Range: 3mT trip threshold and 0.2mT release threshold
• Voltage Supply: 3V ~ 5.5V operating range
• Current Supply (Max): 15µA maximum
• Output Type: Push-Pull configuration
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: TO-236-3, SC-59, SOT-23-3

The MRMS205A-001 meets all substitution criteria as a direct equivalent part. The primary distinction is product status: MRMS205A-001 is active and available in Tape & Reel packaging, whereas the original MRMS205A is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The MRMS205A-001 is the direct substitute for the obsolete MRMS205A. Both parts are manufactured by Murata Electronics and maintain identical electrical and mechanical specifications across all critical parameters.

Selection of MRMS205A-001 is supported by the following factors:

• Active product status ensures ongoing availability and supply chain continuity
• ROHS3 compliance certification on MRMS205A-001 provides regulatory alignment for new designs and production runs
• Tape & Reel packaging format on MRMS205A-001 supports automated assembly processes
• Identical sensing characteristics, voltage range, current consumption, and temperature operating range ensure direct functional equivalence
• Both parts share the same base product number (MRMS2) and package configuration

Frequently Asked Questions (FAQ)

Q: Can MRMS205A-001 be used as a direct replacement for MRMS205A in existing designs?

A: Yes. MRMS205A-001 is electrically and mechanically equivalent to MRMS205A across all specified parameters. No circuit modifications or design changes are required for substitution.

Q: What is the primary difference between MRMS205A and MRMS205A-001?

A: The primary differences are product status and packaging format. MRMS205A is obsolete, while MRMS205A-001 is active. MRMS205A-001 is supplied in Tape & Reel format and carries ROHS3 compliance certification.

Q: Are there any compatibility concerns with the SOT-23-3 package format?

A: No. Both MRMS205A and MRMS205A-001 use the same TO-236-3/SC-59/SOT-23-3 package configuration. PCB footprints and mounting procedures remain identical.

Q: What is the sensing range specification for these parts?

A: Both parts operate with a 3mT trip threshold and 0.2mT release threshold for south pole magnetic field detection in unipolar switch mode.

Q: Are there supply voltage or current consumption differences between these parts?

A: No. Both parts operate within the 3V to 5.5V supply range with a maximum supply current of 15µA. Output current specifications are identical.

Q: What temperature range is supported by MRMS205A-001?

A: MRMS205A-001 operates across the -40°C to 85°C temperature range, matching the MRMS205A specification.