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Bipolar semiconductor process omnipolar Hall switch chip

Ominipolar Hall Switches

HK451

The HK451 is a versatile Hall-effect switch sensitive to both south and north magnetic poles, offering a wide 3.5 to 60V power supply range. It integrates key components like a voltage generator, temperature compensation, signal amplifier, Schmitt trigger, and open collector output. The switch responds by toggling between low and high outputs when the magnetic flux exceeds its operating point (Bop) or falls below its release point (Brp). It's available in TO-92S and SOT-23 packages, meeting RoHS environmental standards.

Core Parameters & Product Advantages

Micro structure

Sensitivity +/-80/50Gauss (typical value)

Operating voltage range from 3.5 Vdc to

40Vdc

Operating temperature range -40 °C - 125°C

Highest ESD performance up to ±5 kV

open collector output

TO-92S package and SOT-23 package

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