HAL103TQ-C Equivalent & Substitute Parts

Part Overview

The HAL103TQ-C is a digital switch latch Hall Effect magnetic sensor manufactured by TDK-Micronas GmbH, designed for magnetic field detection applications requiring open drain output configuration. This component operates as a latching switch, responding to South Pole magnetic field transitions within its specified sensing range. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, design updates, and procurement continuity.

Substiute Parts

HAL103TQ-C

TDK-Micronas GmbHIn Stock: 951HAL103TQ-C Datasheet

Current PartRFQ

SS561AT

Honeywell Sensing and Productivity SolutionsIn Stock: 3054SS561AT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HAL103TQ-C is determined by the following critical parameters:

Core Functional Requirements:

• Hall Effect technology with South Pole polarization
• Latching switch function
• Open drain or open collector output configuration
• Surface mount package compatible with TO-243AA footprint

Electrical Compatibility Criteria:

• Supply voltage range must encompass or overlap the 3.8V ~ 24V requirement
• Output current capability must meet or exceed 50mA
• Sensing range threshold must be compatible with application requirements (11.5mT trip/release)
• Temperature compensated operation

Physical & Compliance Requirements:

• SOT-89B or equivalent package footprint
• RoHS Compliant status
• MSL rating of 1 (Unlimited)

The SS561AT from Honeywell Sensing and Productivity Solutions qualifies as a direct substitute based on matching core technology, function, output type compatibility, and package footprint, with enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The SS561AT is the manufacturer-recommended substitute for the obsolete HAL103TQ-C. Both components maintain RoHS compliance and identical MSL ratings, ensuring regulatory and environmental compatibility.

The SS561AT offers extended operational advantages: a wider supply voltage range (3.8V ~ 30V versus 3.8V ~ 24V), expanded temperature operating window (-40°C ~ 150°C versus 0°C ~ 85°C), and active product status ensuring long-term availability and supply chain stability. The substitute's lower sensing threshold (8.5mT versus 11.5mT) provides increased magnetic field sensitivity, which may require circuit-level evaluation in applications with tight magnetic field tolerances.

Output type differs between components: the HAL103TQ-C uses open drain configuration while the SS561AT employs open collector topology. Both configurations are functionally equivalent in standard pull-up resistor circuits commonly used in industrial and automotive applications. Circuit verification is necessary only if the application relies on specific open drain characteristics not present in open collector designs.

Frequently Asked Questions (FAQ)

Q: Can the SS561AT directly replace the HAL103TQ-C without circuit modifications?

A: The SS561AT is footprint-compatible and functionally equivalent for standard latching switch applications. Open drain and open collector outputs are interchangeable in typical pull-up resistor configurations. However, applications with specialized open drain requirements should be evaluated against the SS561AT open collector specification.

Q: What is the primary difference in sensing range between these components?

A: The HAL103TQ-C triggers at 11.5mT, while the SS561AT triggers at 8.5mT. The substitute is more sensitive to magnetic fields. Applications requiring specific trip thresholds must account for this 3mT difference in magnetic field strength requirements.

Q: Is the SS561AT suitable for extended temperature applications?

A: Yes. The SS561AT operates across -40°C ~ 150°C, compared to the HAL103TQ-C range of 0°C ~ 85°C. This extended range supports automotive, industrial, and extreme environment applications beyond the original component's capability.

Q: Are both components RoHS compliant?

A: Yes. Both the HAL103TQ-C and SS561AT are RoHS Compliant with MSL rating 1 (Unlimited), meeting current environmental and reliability standards.

Q: What is the package compatibility between these components?

A: Both components use TO-243AA variant packaging in SOT-89B configuration, ensuring identical PCB footprint compatibility and surface mount assembly processes.