SS39ET Datasheet, PDF (1/3 Pages) Honeywell Accelerometers – INDUSTRIAL APPLICATIONS

INDUSTRIAL APPLICATIONS
SS39ET/SS49E/SS59ET Series Linear Magnetic Position
Sensor ICs
INTRODUCTION
SS39ET/SS49E/SS59ET series sensors are small, versatile
linear Hall-effect devices that monitor the positive or negative
pole on a permanent magnet or an electromagnet up to
1000 Gauss. They can be powered with voltages as low as
2.7 V and are available in three packages:
SS39ET: subminiature SOT-23 surface mount package
(tape and reel format)
SS49E: leaded flat TO-92 style package (bulk packaging),
SS49E-T2 (formed leads) and SS49E-T3 (straight leads) on
tape in ammopack (fan-fold) format
SS59ET: miniature SOT-89B surface-mount package (tape
and reel format)
POTENTIAL INDUSTRIAL & CONSUMER APPLICATIONS
Figures 2 through 6 show a variety of potential applications in
which these products may be used.
Tamper-Prevention in Utility Meters
Thieves sometimes attempt to bypass the operation of an
electric, gas or water meter by attaching a strong magnet to it.
The utility usage is underestimated when the magnet saturates
the current transformer or slows the spinning wheel.
Figure 2. Natural Gas Meter
Figure 1. SS39ET/SS49E/SS59ET Series with Lead Options
FEATURES AND BENEFITS
Miniature and subminiature construction: Designed for
compact designs with tight space requirements.
Energy efficient: Low current consumption of 6 mA at 5 Vdc
Easy PC board interface: Single current sourcing output for
common electronic circuits
Circuit design flexibility: Voltage range of 2.7 Vdc to
6.5 Vdc
Low noise output: Virtually eliminates the need for filtering
Stable output: Thin film resistors improve accuracy
Wide range of environments: Temperature range of -40 °C
to 100 °C [-40 °F to 212 °F]
Application flexibility: Responds to either positive or
negative Gauss
Install linear Hall-effect sensors in multiple locations inside the
meter to detect the abnormal presence of a magnetic field.
Send an alarm to the utility company or record this fraudulent
activity in memory for processing at a later date.
Customer Benefits
Small: Subminiature sensors easily fit into tight spaces
Prevents false detection: Monitors magnetic fields from a
north or south pole up to 1000 Gauss
Energy efficient: Low voltage capability down to 2.7 V
High volume use: Low cost and taping option for automatic
component placement make this product suitable for high-
volume production
Sensing and Control