High Reliability Hallogic® Hall Effect Sensors
OMH090, OMH3075, OMH3040 (B, S versions)
OMH3131B
Obsolete (OMH3019, OMH3020(B & S), OMH3131S)
Features:
Designed for non‐contact switching operaꢀons
Operates over a broad range of supply voltages
Excellent temperature stability operates in harsh environments
Suitable for military and space applicaꢀons
B and S versions are processed and screened to MIL‐STD‐883
Through Hole 0.40” [10.16 mm] lead length minimum
ESD Raꢀng of Class 3B per MIL‐STD‐883G, M3015.7, HB model
OMH090, 3075, and 3040 have gold plated leads and are RoHS compliant
OMH3040B/S, and 3131B have a Sn 63/37 solder dip and are not RoHS
compliant
Ceramic Package
The Bi‐Polar device turns on (logic level “0”)
in the presence of a magneꢀc south pole
and turns off (logic level “1”) when
subjected to a magneꢀc north pole. Both
magneꢀc poles are necessary for operaꢀon
for Bi‐Polar devices. This feature makes
these sensors ideal for applicaꢀons in non‐
contact switching operaꢀons, brushless DC
motors and for use with mulꢀple pole
magnets.
Description:
Applications:
These Hall‐effect devices contain a
monolithic integrated circuit which
incorporates a Hall element, a linear
amplifier, a threshold amplifier, and Schmiꢁ
trigger on a single Hallogic® silicon chip.
Included on‐chip is a band‐ gap voltage
regulator that allows operaꢀon 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.
Non‐contact switching operaꢀons
Brushless DC motors
Mulꢀple pole magnets
Non‐contact reflecꢀve object sensor
Assembly line automaꢀon
Machine automaꢀon
Machine safety
End of travel sensor
Door sensor
B and S devices are processed to OPTEK’s
military screening program paꢁerned aꢂer
MIL‐STD‐883.
This product has passed Radiaꢀon Hardness
tesꢀng up to 350 Krad (si) per MIL‐STD‐883
method 1019.6 and up to 150 Krad (si) for
ELDRS.
The Uni‐Polar turns on with a (logic level
“0”) aꢂer a sufficient magneꢀc field from
the south pole of a magnet approaches the
symbolized face of the device (operaꢀng
point) and turns off (logic level “1”) aꢂer the
magneꢀc field reaches a minimum value.
Contact your local representaꢀve or OPTEK
for more informaꢀon.
Pin #
Descripꢀon
VCC
Ground
Output
1
2
3
* Add capacitor for stable operaꢀon
[MILLIMETERS]
INCHES
DIMENSIONS ARE IN:
General Note
TT Electronics | OPTEK Technology
2900 E. Plano Pkwy, Plano, TX 75074 | Ph: +1 972 323 2200
TT Electronics reserves the right to make changes in product specificaꢀon without
noꢀce or liability. All informaꢀon is subject to TT Electronics’ own data and is
considered accurate at ꢀme of going to print.
www.ꢁelectronics.com | sensors@ꢁelectronics.com
Rev R 12/2022 Page 1
© TT electronics plc
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