Hall elements detect small magnetic fields
High-sensitivity InSb Hall elements from Diodes detect rotation speed and current across a broad range of applications, even in weak magnetic fields. The AHE300 sensor supports Hall output voltage (VH) classifications C through G, ranging from 168 mV to 370 mV. The AHE10x sensors support VH classifications C through H, with output voltages from 168 mV to 415 mV.
These Hall elements are well-suited for mobile phone and laptop opening detection, joystick control, and magnetic encoding. They are also used in current measurements with clamp-type overhead wire ammeters, as well as for position detection in brushless motors and wheel rotation speed monitoring.
Additionally, the devices enable contactless commutation, speed measurements, and angular position sensing in consumer appliances, office equipment, and industrial systems. The sensors’ low offset voltage (5 mV to 7 mV) ensures the high resolution required for accurate detection in these applications.
The AHE300 operates from -40°C to +110°C in a SIP-4 package and costs $0.18 each in 500-piece quantities. AHE10x devices cover a wider -40°C to +125°C range, making them suitable for harsh thermal environments. They come in SOT23-4 packages with various height options and cost $0.10 each in 3,000-piece quantities.
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