Two-Wire Hall-effect ASIL Compliant Speed & Direction Sensor IC



Top Features

Typical Applications


The A19301 is an optimized Hall-effect integrated circuit (IC) that provides a user-friendly two-wire solution for applications where pitch accuracy is important for the determination of speed and direction of the sensed target. The small package includes an integrated capacitor and Hall-based IC in a single overmolded design, with an additional molded lead-stabilizing bar for robust shipping and ease of assembly.

The IC’s SolidSpeed Digital Architecture™ offers intelligent algorithms capable of maintaining stable operation during dynamic air gap movements. The sophisticated digital controller provides highly accurate speed detection and rotational direction detection ideal for ABS applications.

The A19301 was developed in accordance with ISO 26262:2011 as a hardware safety element out of context with ASIL B(D) capability for use in automotive safety-related systems when integrated and used in the manner prescribed in the applicable safety manual and datasheet. The IC includes built-in EEPROM scratch memory available for device traceability throughout sensor module production.

The IC is offered in the UB package, which integrates the IC and a high temperature ceramic capacitor in a single overmolded SIP package for enhanced EMC performance.

The A19301  is available in a lead (Pb) free 2-pin SIP (Suffix UB) package with a 100% matte tin plated leadframe.



• Hall-effect technology allows ease of use for ring magnet and ferromagnetic target sensing
• Integrated capacitor in a single overmolded miniature package provides greater EMC robustness
• SolidSpeed Digital Architecture™ supports advanced algorithms, maintaining pitch accuracy during dynamic air gap disturbances
• ISO 26262:2011 ASIL B(D) with integrated diagnostics and certified safety design process 
• EEPROM enables traceability throughout product life cycle

The A19301 is available in a lead (Pb) free 2-pin SIP (Suffix UB) package with a 100% matte tin plated leadframe.

UB Package Documentation

Part Number Specifications and Availability

Documentation and Resources


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Application Note
Fundamental Properties of Speed Sensors