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OHS3120U

Description
board mount hall effect / magnetic sensors hall effect sensor
CategoryThe sensor   
File Size172KB,9 Pages
ManufacturerAll Sensors
Environmental Compliance
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OHS3120U Overview

board mount hall effect / magnetic sensors hall effect sensor

OHS3120U Parametric

Parameter NameAttribute value
ManufactureTT electronics
Product CategoryBoard Mount Hall Effect / Magnetic Sensors
RoHSYes
TypeHallogic Hall-Effect Sensors
Operating Supply Voltage4.5 V to 24 V
Supply Curre4 mA
Maximum Output Curre25 mA
Operating Point Min/Max32 G, 450 G
Release Point Min/Max (Brp)25 G, 430 G
Maximum Operating Temperature+ 125 C
Mounting StyleThrough Hole
Minimum Operating Temperature- 40 C
Factory Pack Quantity25
Supply Voltage - Max24 V
Supply Voltage - Mi4.5 V
Hallogic Hall-effect Sensors
OH090U, OH180U, OH360U
OHN3000 Series, OHS3000 Series
OHN3100 Series, OHS3100 Series
Features:
Designed for non-contact switching operations
Operates over broad range of supply voltages (4.5 V to 24 V)
Operates with excellent temperature stability in harsh
environments
Drive capability up to 7 TTL loads
Description:
These Hall-effect devices contain a monolithic integrated circuit which incorporates a Hall element, a linear
amplifier, a threshold amplifier, and Schmitt trigger on a single Hallogic® silicon chip. Included on-chip is a band
gap voltage regulator to allow operation with a wide range of supply voltages. These devices feature logic level
output and provide up to 21 mA of sink current. This allows direct driving of more than 7 TTL loads or any
standard logic family using power supplies ranging from 4.5 to 24 volts. Output amplitude is constant at switching
frequencies from DC to over 200 kHz.
The Uni-Polar turns on with a (logic level “0”) after a sufficient magnetic field from the south pole of a magnet
approached the symbolized face of the device (Operating Point) and turns off (logic level “1”) after the magnetic
field reached a minimum value. The Bi-Polar latch device turns on (logic level “0”) in the presence of a magnetic
south pole and turn off (logic level “1”) when subjected to a magnetic north pole. Both magnetic poles are
necessary for operation for Bi-Polar devices. This feature makes these sensors ideal for applications in non-
contact switching operations, brushless DC motors and for use with multiple pole magnets.
Applications:
Non-contact reflective object
sensor
Assembly line automation
Machine automation
Machine safety
End of travel sensor
Door sensor
Ordering Information
OH090U, OH180U, OH360U
OH3013U, OH3113U
OHN3019U, OHS3019U, OHN3119U, OHS3119U
OHN3020U, OHS3020U, OHN3120U, OHS3120U
OHN3030U, 0HS3030U, OHN3130U, OHS3130U
OHN3131U, OHS3131U
OHN3040U, OHS3040U, OHN3140U, OHS3140U
OH3075U, OHS3075U, OHN3175U, OHS3175U
OHN3177U, OHS3177U
Pin #
1
2
Unipolar
non-latching
3
Transistor
V
CC
Ground
Output
Bi-Polar
latching
1 Vcc
Voltage
Regulator
Hall
Element
Output
3
2 Ground
DIMENSIONS ARE IN:
[MILLIMETERS]
INCHES
RoHS
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A .3 10/06
Page 1 of 9
OPTEK Technology Inc. —
1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
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