HAL549 UA-E Equivalent & Substitute Parts

Part Overview

The HAL549 UA-E is a digital switch Hall effect magnetic sensor manufactured by TDK-Micronas GmbH, designed for magnetic field detection applications with open drain output architecture. This component operates across a supply voltage range of 4.3V to 24V with a maximum supply current of 5.2mA and maximum output current of 20mA. The device features temperature compensation and operates reliably across -40°C to 100°C junction temperature range.

The HAL549 UA-E is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements. The HAL1508 UA serves as the manufacturer-recommended substitute, offering enhanced specifications and active product status.

Substiute Parts

HAL549 UA-E

TDK-Micronas GmbHIn Stock: 1177HAL549 UA-E Datasheet

Current PartRFQ

HAL1508 UA

TDK-Micronas GmbHIn Stock: 2890HAL1508 UA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The HAL1508 UA qualifies as a direct substitute for the HAL549 UA-E based on the following critical parameters:

Core Compatibility Criteria:

• Identical technology platform: Hall effect magnetic sensing
• Identical output architecture: Open drain configuration
• Overlapping supply voltage range: HAL1508 UA operates 2.7V ~ 24V, encompassing the HAL549 UA-E range of 4.3V ~ 24V
• Identical output feature: Temperature compensation
• Compatible package type: Both utilize TO-92UA through-hole mounting

Substitution Basis: The HAL1508 UA maintains functional equivalence through matching Hall effect technology, open drain output topology, and temperature-compensated operation. The substitute component extends the lower supply voltage limit to 2.7V while maintaining the 24V upper limit, providing broader application flexibility. Both devices employ identical packaging and mounting methodology, ensuring mechanical compatibility in existing circuit layouts.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: HAL1508 UA

The HAL1508 UA is the manufacturer-recommended substitute and represents the appropriate selection for HAL549 UA-E replacement. This component maintains functional equivalence across all critical parameters while offering enhanced specifications:

• Extended operating temperature range (-40°C to 170°C) provides superior thermal performance compared to the obsolete HAL549 UA-E (-40°C to 100°C)
• Reduced minimum supply voltage (2.7V versus 4.3V) enables operation in lower-voltage applications
• Active product status ensures ongoing availability, manufacturing support, and supply chain continuity
• Automotive-grade qualification (AEC-Q100) and ROHS3 compliance provide enhanced reliability documentation
• Identical TO-92UA package and through-hole mounting eliminate circuit board redesign requirements

Compliance & Certification:

The HAL1508 UA carries AEC-Q100 automotive qualification and ROHS3 compliance, establishing suitability for regulated applications. These certifications are not explicitly documented for the obsolete HAL549 UA-E, making the substitute the preferred choice for quality-critical implementations.

Frequently Asked Questions (FAQ)

Q: Can the HAL1508 UA directly replace the HAL549 UA-E without circuit modifications?

A: Yes. Both components utilize identical Hall effect technology, open drain output configuration, and TO-92UA through-hole packaging. The HAL1508 UA operates within the supply voltage range of the HAL549 UA-E (4.3V ~ 24V falls within the 2.7V ~ 24V specification), enabling direct substitution without circuit redesign.

Q: What are the key differences between these components?

A: The HAL1508 UA extends the operating temperature range to 170°C (versus 100°C for the HAL549 UA-E) and reduces the minimum supply voltage to 2.7V (versus 4.3V). These enhancements provide broader application flexibility while maintaining functional equivalence.

Q: Why is the HAL549 UA-E obsolete?

A: The HAL549 UA-E has reached end-of-life status. The HAL1508 UA represents the active successor product within the TDK-Micronas Hall effect sensor portfolio, offering improved specifications and ongoing manufacturing support.

Q: Are there packaging considerations for substitution?

A: Both components utilize identical TO-92UA through-hole packaging with TO-226-3 (TO-92-3) formed leads. No package-related modifications are required for board-level substitution.

Q: What certifications does the HAL1508 UA carry?

A: The HAL1508 UA is AEC-Q100 qualified for automotive applications and ROHS3 compliant. These certifications establish suitability for regulated and quality-critical implementations.

Q: How do the sensing characteristics compare?

A: The HAL1508 UA is specified as a unipolar switch with North Pole polarization, featuring -5.5mT trip and -3.7mT release thresholds. The HAL549 UA-E sensing range is not specified in available documentation, making the HAL1508 UA the reference for magnetic field detection parameters.