HAL575SF-K Equivalent & Substitute Parts

Part Overview

The HAL575SF-K is a digital switch latch Hall effect magnetic sensor manufactured by TDK-Micronas GmbH, designed for applications requiring magnetic field detection with current source output. This component operates as a latch function device with temperature compensation across industrial temperature ranges. The product is currently obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

HAL575SF-K

TDK-Micronas GmbHIn Stock: 3227HAL575SF-K Datasheet

Current PartRFQ

SS561AT

Honeywell Sensing and Productivity SolutionsIn Stock: 3054SS561AT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HAL575SF-K is determined by the following critical parameters:

Functional Compatibility Requirements:

• Latch function operation (magnetic hysteresis behavior)
• Hall effect technology for magnetic field sensing
• South pole polarization matching
• Surface mount package compatibility (SOT-89B form factor)

Electrical Compatibility Requirements:

• Supply voltage range overlap with 3.75V ~ 24V specification
• Output type capability (current source or open collector acceptable for latch applications)
• Maximum supply current within system design limits
• Operating temperature range sufficient for application environment

Mechanical Compatibility Requirements:

• TO-243AA package variant (SOT-89B pinout)
• Surface mount configuration

The SS561AT from Honeywell Sensing and Productivity Solutions meets these substitution criteria through matching latch function, Hall effect technology, south pole polarization, and compatible SOT-89B package configuration.

Parameter Comparison

Engineering Selection Recommendations

The SS561AT is the manufacturer-recommended substitute for the obsolete HAL575SF-K. Both components maintain RoHS compliance and identical moisture sensitivity ratings, ensuring regulatory and environmental consistency.

The SS561AT provides extended operating temperature range (-40°C ~ 150°C versus -40°C ~ 85°C), expanded supply voltage range (3.8V ~ 30V versus 3.75V ~ 24V), and reduced maximum supply current (10mA versus 17mA). The output type differs from current source to open collector; circuit design must accommodate this output configuration change.

Sensing range specifications show minor variation (8.5mT/−8.5mT versus 8mT/−8mT), representing acceptable tolerance within magnetic sensor applications. Both components employ temperature compensation and maintain identical latch function behavior with south pole polarization.

Frequently Asked Questions (FAQ)

Q: Can the SS561AT directly replace the HAL575SF-K without circuit modifications?

A: The SS561AT is pin-compatible in SOT-89B package configuration. However, the output type change from current source to open collector requires circuit design review. Applications using the current source output directly must implement appropriate pull-up resistor networks for open collector operation.

Q: What is the significance of the sensing range difference (8mT versus 8.5mT)?

A: Both specifications represent the magnetic field threshold at which the latch function triggers. The 0.5mT difference falls within typical sensor tolerance and application margin. System design must confirm this variation is acceptable for the specific magnetic field environment.

Q: Does the extended operating temperature range of the SS561AT affect compatibility?

A: The SS561AT's extended range (-40°C ~ 150°C) is a superset of the HAL575SF-K specification (-40°C ~ 85°C). Applications operating within the original temperature range experience no compatibility issues. Applications requiring extended temperature operation benefit from the SS561AT's broader specification.

Q: Are there packaging or moisture sensitivity concerns with substitution?

A: Both components share identical MSL rating (1 - Unlimited) and compatible SOT-89B package variants. No additional moisture handling or storage procedures are required beyond standard component practices.

Q: What supply voltage considerations apply when substituting?

A: The SS561AT accepts 3.8V ~ 30V supply voltage, overlapping the HAL575SF-K range of 3.75V ~ 24V. Systems operating within 3.8V ~ 24V experience full compatibility. Systems requiring operation below 3.8V or above 24V must evaluate the SS561AT's expanded range against specific application requirements.