HAL502 SF-K Equivalent & Substitute Parts

Part Overview

The HAL502 SF-K is a digital switch Hall Effect magnetic sensor manufactured by TDK-Micronas GmbH, designed for surface mount applications in the SOT-89B-1 package. This component operates as an open drain output device with temperature compensation across a wide supply voltage range of 3.8V to 24V and an operating temperature range of -40°C to 140°C. The product is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

HAL502 SF-K

TDK-Micronas GmbHIn Stock: 1198HAL502 SF-K Datasheet

Current PartRFQ

HAL1502SU-A

TDK-Micronas GmbHIn Stock: 75123HAL1502SU-A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HAL502 SF-K is determined by the following critical parameters:

• Technology: Hall Effect magnetic sensing capability
• Output Configuration: Open drain output type
• Supply Voltage Range: Compatibility within 3.8V to 24V operating window
• Operating Temperature Range: Functional performance across -40°C to 140°C
• Mounting Type: Surface mount configuration
• Manufacturer: TDK-Micronas GmbH product line continuity

The HAL1502SU-A qualifies as a manufacturer-recommended substitute based on matching core functional parameters: Hall Effect technology, open drain output, overlapping supply voltage range (2.7V ~ 24V), surface mount configuration, and TDK-Micronas GmbH manufacturing. The substitute operates within a reduced temperature range (-40°C ~ 70°C) and employs a different package format (SOT-23-3 versus SOT-89B-1), requiring mechanical and thermal design verification during implementation.

Parameter Comparison

Engineering Selection Recommendations

The HAL1502SU-A is the manufacturer-recommended substitute for the obsolete HAL502 SF-K. Selection of this substitute is supported by the following engineering factors:

Product Status: The HAL502 SF-K is obsolete with no ongoing manufacturing. The HAL1502SU-A is in active production status, ensuring long-term component availability and supply chain continuity.

Functional Compatibility: Both components employ Hall Effect technology with open drain output configuration, providing equivalent magnetic sensing functionality. Supply voltage overlap (2.7V ~ 24V for the substitute encompasses the original 3.8V ~ 24V requirement) ensures electrical compatibility in most applications.

Compliance and Qualification: The HAL1502SU-A carries AEC-Q100 automotive qualification and ROHS3 compliance, meeting modern regulatory and quality standards. These certifications are not specified for the obsolete original component.

Design Considerations: The substitute operates within a narrower temperature range (-40°C ~ 70°C versus -40°C ~ 140°C). Applications requiring operation above 70°C junction temperature require thermal analysis and potential design modification. The package change from SOT-89B-1 to SOT-23-3 necessitates PCB layout revision and mechanical footprint verification.

Frequently Asked Questions (FAQ)

Q: Can the HAL1502SU-A directly replace the HAL502 SF-K without PCB modification?

A: No. While both components are Hall Effect open drain magnetic sensors from TDK-Micronas GmbH, they use different packages (SOT-89B-1 versus SOT-23-3). PCB layout modification is required to accommodate the different footprint and pin configuration.

Q: What is the impact of the narrower operating temperature range of the HAL1502SU-A?

A: The substitute operates to 70°C junction temperature, compared to the original 140°C. Applications operating above 70°C require thermal design review. For applications within -40°C to 70°C, the substitute is fully compatible.

Q: Are there electrical parameter differences between these components?

A: The supply voltage range of the HAL1502SU-A (2.7V ~ 24V) extends lower than the original (3.8V ~ 24V), providing broader compatibility. Supply and output current specifications are not provided for the substitute; refer to the HAL1502SU-A datasheet for detailed electrical characteristics.

Q: Does the HAL1502SU-A include the temperature compensation feature of the original?

A: Temperature compensation is specified for the HAL502 SF-K. This feature is not explicitly listed in the provided parameters for the HAL1502SU-A. Consult the component datasheet to confirm temperature compensation implementation.

Q: What is the significance of the AEC-Q100 qualification on the substitute?

A: AEC-Q100 is an automotive industry standard qualification demonstrating reliability and quality in automotive applications. The substitute meets this standard; the original component qualification status is not specified.

Q: Can the HAL1502SU-A be used in applications originally designed for the HAL502 SF-K?

A: Yes, provided that: (1) the application operates within -40°C to 70°C junction temperature, (2) PCB layout is modified for the SOT-23-3 package, and (3) electrical parameter compatibility is verified against the specific application requirements using the HAL1502SU-A datasheet.