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Sensing and Control
Honeywell Inc.
11 West Spring Street
Freeport, Illinois 61032
Solid State Hall Effect Sensors
High Performance Miniature Ratiometric Linear
SS490 Series
FEATURES
Small size (.160 x .118 in)
Power consumption of 7 mA
at 5 VDC for energy
efficiency
Single current sinking or
current sourcing output
Linear output for circuit
design flexibility
Built-in thin film resistors are
laser trimmed for precise
sensitivity and temperature
The SS490 Series MRL (Miniature Ratiometric Linear) sensors are small,
compensation
versatile linear Hall effect devices which are operated by the magnetic field
Rail-to-rail operation
from a permanent magnet or an electromagnet. The ratiometric output
provides more useable
voltage is set by the supply voltage and varies in proportion to the strength
signal for higher accuracy
of the magnetic field.
Temperature range of -40C
The integrated circuitry provides increased temperature stability and
to +150C
sensitivity. Laser trimmed thin film resistors provide high accuracy (null to
Responds to either positive
3%, sensitivity up to 3%) and temperature compensation. These linear
or negative gauss position sensors have an operating temperature range of -40C to +150C,
Quad Hall sensing element
appropriate for industrial and automotive environments. They respond to
for stable output
either positive or negative gauss, monitoring either or both magnetic poles.
The quad Hall sensing element minimizes the effects of mechanical or
TYPICAL APPLICATIONS
thermal stress on the output. The positive temperature coefficient of the
Current sensing
sensitivity (+0.02%/C typical) helps compensate for the negative
Motor control
temperature coefficients of low cost magnets, providing a robust design
Position sensing
over a wide temperature range. Rail-to-rail operation (over full voltage
Magnetic code reading
range) provides a more usable signal for higher accuracy.
Rotary encoder
The recent extension to the product line, the SS490B Series, offers cost-
Ferrous metal detector
effective MRL sensing solutions with slightly wider specifications than the
Vibration sensing
SS490 high-performance products. Like the SS490 Series, the SS490B
Liquid level sensing
has a typical sinking or sourcing output of 1.5 mA continuous, uses 7 mA of
Weight sensing
supply current at 5.0 volts and 25C, and provides predictable performance
over the full temperature range. The SS490B Series sensors have wider
null and sensitivity tolerances and a wider drift over temperature.
WARNING
The SS490B Series sensors are a new lower cost product line extension.
PERSONAL INJURY
They complement the SS490 Series of small size, high accuracy and high
DO NOT USE these
performance miniature linear products.
products as safety or
emergency stop devices, or
in any other application WARNING
where failure of the product
MISUSE OF DOCUMENTATION
could result in personal
The information presented in this product sheet is for reference only.
injury.
Do not use this document as product installation information.
Failure to comply with these
Complete installation, operation, and maintenance information is
instructions could result in
provided in the instructions supplied with each product.
death or serious injury.
Failure to comply with these instructions could result in death or
serious injury.
Sensing and Control