OHS3151U Hall Effect Sensor Equivalent & Substitute Parts

Part Overview

The OHS3151U is a single-axis Hall Effect analog sensor manufactured by TT Electronics/Optek Technology in a TO-92-3 package. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design considerations. The sensor operates as an analog voltage output device with temperature compensation, suitable for magnetic field detection applications requiring through-hole mounting.

Substiute Parts

OHS3151U

TT Electronics/Optek TechnologyIn Stock: 1069OHS3151U Datasheet

Current PartRFQ

MLX90242LUA-GAA-000-SP

Melexis Technologies NVIn Stock: 1075MLX90242LUA-GAA-000-SP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OHS3151U is determined by strict alignment of the following electrical and mechanical parameters:

• Technology Match: Hall Effect sensor technology
• Output Configuration: Single-axis analog voltage output
• Package Compatibility: TO-92-3 through-hole package
• Electrical Operating Range: Supply voltage and current specifications must accommodate the original design envelope
• Temperature Operating Range: Must support the application's thermal requirements
• Compliance Standards: RoHS3 compliance and regulatory certifications

The MLX90242LUA-GAA-000-SP meets these substitution criteria as a Hall Effect analog sensor with identical package configuration and compatible electrical characteristics within the specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

The MLX90242LUA-GAA-000-SP serves as a direct functional substitute for the obsolete OHS3151U based on matching technology, package configuration, and core electrical parameters. Both components are ROHS3 compliant and maintain identical through-hole TO-92-3 package specifications.

The MLX90242LUA-GAA-000-SP is designated as "Not For New Designs" by Melexis Technologies NV, indicating it is a legacy component. For applications currently using the OHS3151U, the MLX90242LUA-GAA-000-SP provides continuity of supply and functional compatibility. The substitute operates within a narrower supply voltage range (4.5V ~ 5.5V versus 4.5V ~ 6V) and delivers significantly lower output current (100µA versus 5mA), requiring verification that existing load circuits accommodate these electrical differences.

Frequently Asked Questions (FAQ)

Q: Can the MLX90242LUA-GAA-000-SP directly replace the OHS3151U in existing designs?

A: The MLX90242LUA-GAA-000-SP is mechanically and functionally compatible as a through-hole TO-92-3 Hall Effect analog sensor. However, the reduced maximum output current (100µA versus 5mA) and narrower supply voltage range (4.5V ~ 5.5V versus 4.5V ~ 6V) require verification against your specific circuit requirements before implementation.

Q: What is the significance of the "Not For New Designs" status on the MLX90242LUA-GAA-000-SP?

A: This designation indicates the MLX90242LUA-GAA-000-SP is a legacy component no longer recommended for new product development. It remains suitable for replacement and repair of existing systems, but alternative current-generation Hall Effect sensors should be evaluated for new applications.

Q: Are both components RoHS3 compliant?

A: Yes, both the OHS3151U and MLX90242LUA-GAA-000-SP are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the primary difference in electrical performance between these sensors?

A: The MLX90242LUA-GAA-000-SP operates at lower supply current (4.5mA maximum versus 10mA) and significantly lower output current (100µA versus 5mA). The substitute also supports an extended upper operating temperature of 150°C compared to 125°C for the OHS3151U.

Q: Are the TO-92-3 packages identical between manufacturers?

A: Both components use the TO-92-3 package designation with identical through-hole mounting configuration. The MLX90242LUA-GAA-000-SP is also designated TO-226AA, which is the equivalent industry standard designation for this package form factor.