High Reliability Hallogic® Hall-

Effect Sensors

OMH090, OMH3019, OMH3020, OMH3040,

OMH3075, OMH3131 (B, S versions)

© TT electronics plc

Issue K-1

08/2016

Page 1

OPTEK Technology, Inc.

1645 Wallace Drive, Carrollton, TX 75006|Ph: +1 972 323 2200

www.optekinc.com | www.ttelectronics.com

General Note

TT Electronics reserves the right to make changes in product specification without

notice or liability. All information is subject to TT Electronics’ own data and is

considered accurate at time of going to print.

Lead finish = Solder Dipped (Sn 63/37)

Pin #

Description

1

2

Ground

3

Output

* Add capacitor for stable opera on

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 that allows

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

approaches the symbolized face of the

device (operating point) and turns off

(logic level “1”) after the magnetic field

reaches a minimum value. The Bi-Polar

device turns on (logic level “0”) in the

presence of a magnetic south pole and

turns 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.

B and S devices are processed to

OPTEK’s military screening program

patterned after MIL-STD-883. This

product has passed Radiation Hardness

testing up to 350 Krad (si) per MIL-STD-

883 method 1019.6 and up to

150

Krad (si) for ELDRS.

Contact your local representative or

OPTEK for more information.

Applications:

Features:

•

Designed for non-contact switching operations

•

Operates over a broad range of supply voltages

•

Excellent temperature stability operates in harsh environments

•

Suitable for military and space applications

•

Processing patterned after class B or S of MIL-STD-883

•

Through Hole 0.40” [10.16 mm] lead length minimum

•

ESD Rating of Class 3B per MIL-STD-883G, M3015.7, HB model.

Ceramic Package

DIMENSIONS ARE IN:

INCHES