High Precision Analog Hall Effect Sensor
AST244 Hall Sensor Series
Leads
Ferrite core
Air gap
Hall Effect sensor
A common application is magnetic field measurements in thin airgaps
AST244T / AST244HT
Standard or high temp wires.
20 cm pair-twisted wires as standard.
Size: 3,0 x 5,0 mm
Max thickness 0,70 mm
Thinner sensors available on request
AST244S
Fine pads suitable for soldering or microwelding
Size: 3,0 x 5,0 mm
Max thickness 0,70 mm
Thinner sensors available on request
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AST244SH (earlier AST214SH)
SMD component
Available sizes:
2,0 x 2,0 mm
3,0 x 3,0 mm
Max thickness 0,70 mm
Thinner sensors available on request
NEW 2024:
AST244P
Pin version
Body size: 2,2 x 3,1 mm
Total length 14,3 mm
Pitch 1,27 mm
Max thickness 0,70 mm
AST214T / AST214HT
Wired component.
Standard or high temp wires.
20 cm pair-twisted wires as standard.
Size: 2,0 x 5.0 mm
Max thickness 0,70 mm
Thinner sensors available on request
In the AST244 Hall sensor, the high resolution, combined with the ability to detect small changes in very strong magnetic fields, moves your measurements into the ppm range.
The AST244 hall sensor series is ultra-stable
- Very wide range from a few µ-Tesla up to 10 Tesla and above
- Measures both positive and negative fields with very high precision
- Very low noise
- Very wide temperature range; a high temperature version up to +250°C/+480°F is also available
- Very low temperature coefficient
- Very low offset
- Ultra-low drift as well as long term drift
- Ultra-low PHE (Planar Hall Effect) Error.
Z-field measurements show no X- and Y-field errors
- X-ray resistant
For dynamic, low noise measurements, we recommend sensor currents of 2 mA or lower for the AST244. For higher output, sensor currents up to 10 mA can be used. As a rule of thumb, the AST244 series gives an output of 0,2 V/T at 2 mA sensor current.
Typical Applications:
- Measuring precise homogenous fields
- Precise current and power sensors
- Measure both strongly magnetized metals and remanent magnetism with one sensor
- Measurements in small metal, magnet and ferrite airgaps
- Low DC current in strong AC currents, for example in windmills where only a limited DC current is allowed to be fed into the net
Application notes:
AST244 5-chip Array
5-chip array with
1 mm pitch between sensors
Size: 7 x 8 mm
Max thickness: 1,2 mm
15 cm standard wires
(Custom length wires also possible)
New product releases 2025:
AST244AT
Axial Hall sensor with plastic housing
20 cm pair-twisted wires as standard
Size: diameter 3,25 mm
length 3,15 mm
(High temp version with ceramic housing available on request.)
Asensor Technology AB
Maskinvägen 6
746 30 Bålsta
Sweden
Phone: (+46) 8 590 755 10
Phone (NL): (+31) 6 515 900 81
www.asensor.eu
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