Honeywell SS549AT Unipolar Hall Effect Sensor - SOT-89-3 SMD, 3.8-30Vdc, 180-420 G
The Honeywell SS549AT is a unipolar board-mount Hall effect sensor in an SOT-89-3 package, featuring a temperature-compensated quad-Hall IC design for stable magnetic field sensing from 180 G to 420 G. It operates from 3.8V to 30V DC with an open-collector digital output, making it compatible with a wide range of industrial control systems and microcontrollers.
Features
- Quad-Hall IC design minimizes mechanical stress for enhanced stability.
- Temperature-compensated for reliable operation from -40°C to +150°C.
- Wide supply voltage range: 3.8 Vdc to 30 Vdc.
- Digital, open-collector sinking output for easy interface with logic circuits.
- Unipolar magnetic sensing with an operating range of 180 G to 420 G.
Out of stock
The Honeywell SS549AT Hall effect sensor utilizes a sophisticated quad-Hall element integrated circuit. This design inherently cancels out the effects of package stress and thermal gradients, providing a stable and precise magnetic switchpoint over its entire operating temperature range. The sensor is configured for unipolar operation, activating in the presence of a sufficient south-pole magnetic field.
Its broad 3.8V to 30V supply voltage compatibility allows for direct integration into 5V, 12V, or 24V industrial systems without requiring a voltage regulator. The digital output sinks up to 8.7 mA, enabling direct drive of opto-isolators, microcontroller inputs, or small relays for speed sensing, position detection, and motor control applications.
Additional Information
| Weight | 0.011 kg |
|---|---|
| Dimensions | 0.6 × 0.8 × 0.3 cm |













