Two Hall-effect switch families, the unipolar AH332xQ and omnipolar AH352xQ from Diodes, offer a range of operating sensitivity options. The automotive-compliant ICs are suitable for a wide range of contactless position and proximity detection applications, including seatbelt fastening, door and trunk latching, windshield wipers, and steering wheel locks.
The unipolar AH332xQ switches provide 10 sensitivity options, ranging from a highly sensitive 30 G BOP to a low-sensitivity 275 G BOP. The omnipolar AH352xQ series includes three high-sensitivity options from ±20 G BOP to ±40 G BOP. Both series feature tight operating and release thresholds with sufficient hysteresis for reliable operation, while a low temperature coefficient ensures stable switching points.
These devices support a wide input voltage range of 3 V to 28 V and are AEC-Q100 Grade 0 qualified, with an extended temperature range of -40°C to +150°C. They deliver ESD protection exceeding 8 kV HBM and 1 kV CDM, along with 40-V load-dump capability. Packaging options include SIP-3, SOT23 (Type S), and SC59.
The AH332xQ and AH352xQ Hall-effect switches cost $0.30 each in lots of 3000 units.
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