Magnetic Sensors
Line Guide
You know us as a leader, whether you’ve known us as MICRO
SWITCH or Honeywell Sensing and Internet of Things (SIoT).
In 1968, we revolutionized the industry with the first solid-
state keyboard combining Hall-effect sensing and associated
electronics in a single circuit. Today, the Honeywell SIoT family
of magnetic position sensors includes digital and analog
Hall-effect position, magnetoresistive digital, Hall-effect vane,
gear-tooth, and Hall-effect basic switches and magnets. These
high-speed, extended life sensors are often directly compatible
with other electronic circuits, responding to the presence or the
interruption of a magnetic field by producing a proportional
output. Gear-tooth and other packaged Hall-effect speed and
direction sensors sense movements of a ferrous metal target.
Digital and analog “sensor-only” devices are operated by a
permanent magnet or electromagnet, while actuation mode
depends on the type of magnets used. A vane passing through
a gap or a magnet mounted on a plastic plunger operates
integral magnet position sensors.
FEATURES
L
OW POWER HALL-EFFECT SENSOR
ICS - DIGITAL
SL353 Series.
Features:
Energy efficient • Push-
pull output • Non-chopper stabilized
design • Omnipolar magnetics •
Thermally balanced integrated circuit
• Subminiature package size • Simple
activation from a North pole or a South
pole • Tape and reel packaging
Benefits:
Supply voltage as low as 2.2
Vdc, combined with very low average
current of 1.8 uA typ., reduces power
consumption, provides extended battery
life, and promotes energy efficiency.
Push-pull output does not require
external pull-up resistor, simplifying
interface with common electrical circuits
and potentially reducing PC board space
and costs to the customer. Does not
utilize chopper stabilization, eliminating
the noise generated by products using
this technique, meaning that customers
do not need filters to compensate for the
noise. Omnipolar capability with high
and low duty cycle options allows for use
in a variety of potential applications with
low power requirements and/or battery
operation. Thermally balanced integrated
circuit provides for stable operation over a
wide temperature range, of -40° to 85°C
[-40° to 185°F]. SOT-23 subminiature
package requires less PCB space,
allowing for use in smaller assemblies.
North pole or South pole operation does
not require the magnet polarity to be
identified, making installation easier
and potentially reducing system costs.
Supplied on tape and reel which allows
for a compact design with automated
component placement, helping to
reduce manufacturing costs. Potential
applications include motion control, lid
closure detection, presence-absence,
metering, and displacement sensing
on battery-operated, mobile equipment
such as computer notebooks, scanners,
hand-held industrial computers,
instrumentation and appliances.
HALL-EFFECT SENSOR ICS - DIGITAL
SS30AT, SS40A, SS50AT.
Features:
Bipolar magnetics • Sinking
output • High output current capability
• High speed capability • Reverse polarity
protection • Small through-hole and
surface mount (SOT-23 and SOT-89B)
packages • Tape and reel available
Benefits:
Integrated circuitry provides
enhanced temperature stability in a
robust design. Thermally balanced
integrated circuit over full temperature
range. Built-in regulator provides stable
operation over supply voltage range.
Open-collector sinking output voltage
easily interfaces with wide variety of
electronic circuits. Internal circuitry
prevents sensor damage in case supply
voltage polarity is accidentally reversed.
Potential applications include speed
and RPM sensing, brushless dc motor
commutation, motor and fan control,
magnetic encoding, disc speed, tape
rotation, and flow-rate sensing.
SS311PT, SS411P.
Features:
Bipolar magnetics • Enhanced
sensitivity • Built-in pull-up resistor • Low
voltage: 2.7 Vdc to 7 Vdc • Subminiature
package size (SS311PT) • Through-hole
and surface-mount (SOT-23 and SOT-
89B) packages • Cost effective
Benefits:
Enhanced sensitivity often
allows for use of smaller, less expensive
magnets. Built-in pull-up resistor easily
interfaces with common electronic
circuits without adding external
components, helping to reduce total
continued on page 10
Magnetic Sensors Line Guide
Precision. Repeatability.
Ruggedness.
Each Honeywell SIoT
magnetic sensor IC is
engineered to provide top
performance:
Hall-effect sensor ICs
are
constructed from a thin
sheet of conductive material
with output connections
perpendicular to the direction
of current flow.
Magnetoresistive
sensor ICs
have a built-in
magnetoresistive bridge
integrated on silicon,
encapsulated in a plastic
package. The sensitive
integrated circuit responds
to low (25 G max.) fields at
distances up to 1 inch.
Hall-effect vane sensor
ICs
consist of a magnet and
a Hall-effect sensor inside
a rugged plastic housing.
Different package styles
provide mounting flexibility.
Additional built-in benefits:
true solid state, extended life
(30 billion operations in a
module test program), high
speed operation (over 100
kHz), stationary input (zero
speed), no moving parts, logic
compatible output, and broad
temperature range (-40°C to
150°C [-40°F to 302°F]).
Low power Hall-
effect sensor ICs -
digital
Description
Magnetic actuation type
Package style (packaging)
Supply voltage range
Supply current
Output type
Operating temperature range
SL353 Series
micropower omnipolar digital Hall-effect sensor IC
omnipolar
SOT-23 (pocket tape and reel)
2.2 Vdc to 5.5 Vdc
SL353LT: 1.8 uA typ. at 2.8 Vdc
SL353HT: 0.33 mA typ. at 2.8 Vdc
digital
-40°C to 85°C [-40°F to 185°F]
Hall-effect sensor
ICs - digital
SS30AT, SS40A, SS50AT
low-cost bipolar digital Hall-effect
sensor IC
bipolar
SS30AT:
SOT-23 (pocket tape and reel)
SS40A:
flat TO-92-style, standard straight
leads (bulk)
SS50AT:
SOT-89B (pocket tape and reel)
4.5 Vdc to 24 Vdc
10 mA max.
digital sinking
SS40A:
-40°C to 125°C
[-40°F to 257°F]
SS30AT, SS50AT:
-40°C to 125°C
[-40°F to 257°F]
SS311PT, SS411P
bipolar digital Hall-effect sensor ICs with
built-in pull-up resistor
bipolar
SS311PT:
SOT-23 (pocket tape and reel)
SS411P:
flat TO-92-style, standard straight
leads (bulk)
2.7 Vdc to 7 Vdc
Description
Magnetic actuation type
Package style
(packaging
Supply voltage range
Supply current
Output type
Operating temperature range
14 mA max.
digital sinking
-40°C to 150°C
[-40°F to 302°F]
2
Sensing and Internet of Things
Hall-effect sensor
ICs - digital
SS340RT, SS440R Series
unipolar Hall-effect digital sensor IC
SS340RT:
North pole
SS440R:
South pole
SS340RT:
SOT-23 (pocket tape and reel)
SS440R:
flat TO-92-style, standard straight
leads (bulk)
3 Vdc to 24 Vdc, except SS340RT
>125°C [257°F]: 3 Vdc to 12 Vdc
8 mA
digital sinking
SS340RT
(3 Vdc to 24 Vdc):
-40°C to 125°C [-40°F to 257°F]
SS340RT
(3 Vdc to 12 Vdc):
-40°C to 150°C [-40°C to 302°F]
SS440R
(3 Vdc to 24 Vdc):
-40°C to 150°C [-40°F to 302°F]
SS345PT, SS445P
unipolar Hall-effect digital sensor IC
unipolar
SS345PT:
SOT-23 (pocket tape and reel)
SS445P:
flat TO-92-style, standard straight
leads (bulk)
2.7 Vdc to 7.0 Vdc
14 mA
digital sinking
SS351AT, SS451A, SS551AT
omnipolar Hall-effect digital sensor IC
omnipolar
SS351AT:
SOT-23 (pocket tape and reel)
SS451A:
flat TO-92-style, standard
straight leads (bulk)
SS551AT:
SOT-89B (pocket tape and reel)
3 Vdc to 24 Vdc, except SS351AT
>125°C [257°F]: 3 Vdc to 12 Vdc
9 mA
digital sinking
SS351AT
(3 Vdc to 24 Vdc):
-40°C to 125°C [-40°F to 257°F]
SS351AT
(3 Vdc to 12 Vdc):
-40°C to 150°C [-40°C to 302°F]
SS451A, SS551AT
(3 Vdc to 24 Vdc):
-40°C to 150°C [-40°F to 302°F]
Description
Magnetic actuation type
Package style
(packaging
Supply voltage range
Supply current
Output type
Operating temperature range
-40°C to 150°C [-40°F to 302°F]
Hall-effect sensor
ICs - digital
SS360NT, SS360ST, SS360ST-
10K, SS460S, SS460S-T2
high sensitivity latching Hall-effect digital
sensor IC
latching
SS360NT, SS360ST, SS360ST-10K:
SOT-23 (pocket tape and reel)
SS460S:
flat TO-92-style, standard straight
leads (bulk)
SS460S-T2:
flat TO-92-style, formed leads;
(ammopack tape-in-box)
SS460-LP:
3 Vdc to 24 Vdc
8 mA max.
digital
-40°C to 125°C [-40°F to 257°F]
SS360PT, SS460P,
SS460P-T2
high sensitivity latching Hall-effect digital
sensor IC with built-in pull-up resistor
latching
SS360PT:
SOT-23 (pocket tape and reel)
SS460P:
flat TO-92-style, standard straight
leads (bulk)
SS460P-T2:
flat TO-92-style, formed leads
(ammopack tape-in-box)
3 Vdc to 24 Vdc
10 mA max.
digital
-40°C to 125°C [-40°F to 257°F]
SS361CT, SS461C
high sensitivity latching Hall-effect digital
sensor IC
latching
Description
Magnetic actuation type
Package style
(packaging)
SS361CT:
SOT-23 (pocket tape and reel)
SS461C:
flat TO-92-style, standard straight
leads (bulk)
Supply voltage range
Supply current
Output type
Operating temp. range
4 Vdc to 24 Vdc
6 mA max.
digital sinking
-40°C to 125°C [-40°F to 257°F]
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Magnetic Sensors Line Guide
Hall-effect sensor
ICs - digital
SS361RT, SS461R
VF360NT, VF360ST, VF460S
SS400, SS500 Series
SS400:
unipolar/bipolar/latching
Hall-effect digital sensor IC
SS500:
unipolar/bipolar/latching
Hall-effect digital sensor IC
unipolar, bipolar, latching
Description
Magnetic actuation type
Package style
(packaging)
Supply voltage range
Supply current
Output type
Operating temperature range
latching Hall-effect digital sensor IC
latching
SS361RT:
SOT-23 (pocket tape and reel)
SS461R:
flat TO-92-style, standard straight
leads (bulk)
3 Vdc to 18 Vdc, except SS361RT >125°C
[257°F]: 3 Vdc to 12 Vdc
8 mA
digital sinking
SS361RT
(3 V to 12 V),
SS461R:
40°C to
150°C [-40°F to 302°F]
SS361RT
(3 V to 18 V): -40°C to 125°C
[-40°F to 257°F]
high sensitivity latching digital
Hall-effect sensor IC
latching
VF360NT, VF360ST:
SOT-23 (pocket tape
SS400:
flat TO-92-style, standard straight
and reel)
leads (bulk)
VF460S:
flat TO-92-style, standard straight
SS500:
SOT-89B (pocket tape and reel)
leads (bulk)
3 Vdc to 24 Vdc
8 mA max.
digital sinking
40°C to 150°C
[-40°F to 302°F
3.8 Vdc to 30 Vdc (inclusive)
SS400:
10 mA
SS500:
8.7 mA at 5 Vdc
digital sinking
-40°C to 150°C
[-40°F to 302°F]
Hall-effect sensor
ICs - digital
SS41, SS51T
bipolar Hall-effect digital sensor IC
bipolar
SS41:
flat TO-92-style, standard straight leads (bulk)
SS51T:
SOT-89B (pocket tape and reel)
4.5 Vdc to 24 Vdc
15 mA max.
digital sinking
-40°C to 150°C
[-40°F to 302°F]
VF526DT
latching dual Hall-effect digital sensor IC with speed and
direction outputs
latching
SOT-89B (pocket tape and reel)
3.4 Vdc to 24 Vdc
Off: 12 mA max.
On: 14 mA max.
digital voltage, dual open collector sinking
-40°C to 125°C
[-40°F to 257°F]
Description
Magnetic actuation type
Package style
(packaging)
Supply voltage range
Supply current
Output type
Operating temperature range
4
Sensing and Internet of Things
Hall-effect sensor
ICs - linear
SS39ET, SS49E, SS49E-F, SS49E-L,
SS49E-T2, SS49E-T3, SS59ET
Hall-effect linear sensor IC
linear
SS39ET:
SOT-23 (pocket tape and reel)
SS49E:
flat TO-92-style, standard straight leads (bulk)
SS49E-F:
flat TO-92-style, formed leads (bulk)
SS49E-L:
flat TO-92-style, long straight leads (bulk)
SS49E-T2:
flat TO-92-style, formed leads (ammopack tape-in-box)
SS49E-T3:
flat TO-92-style, standard straight leads (ammopack tape-in-box)
SS59ET:
SOT-89B (pocket tape and reel)
2.7 Vdc to 6.5 Vdc
10 mA max.
ratiometric sourcing
-40°C to 100°C
[-40°F to 212°F]
SS490, SS491B Series
Hall-effect linear sensor IC
linear
Description
Magnetic actuation type
Package style
(packaging)
flat TO-92-style, standard straight leads (bulk)
Supply voltage range
Supply current
Output type
Operating temperature
range
4.5 Vdc to 10.5 Vdc
10 mA
ratiometric sinking or sourcing
-40°C to 150°C
[-40°F to 302°F]
Magnetoresistive
sensor ICs
Nanopower
Series
omnipolar magnetoresistive
sensor IC
omnipolar
SOT-23 (pocket tape and reel)
1.65 Vdc to 5.5 Vdc
SM351LT:
360 nA typ.
SM353LT:
310 nA typ.
low: 0.03 V typ.
high: Vs-0.03 V typ.
-40°C to 85°C
[-40°F to 185°F]
Standard Power
Series
omnipolar magnetoresistive
sensor IC
omnipolar
SM351RT, SM353RT:
SOT-23 (pocket
tape and reel)
SM451RT, SM453RT:
flat TO-92-style,
standard straight leads (bulk)
3 Vdc to 24 Vdc
8 mA max.
digital sinking
-40°C to 85°C
[-40°F to 185°F]
2SS52M
Series
omnipolar magnetoresistive digital
sensor IC
omnipolar
U-pack, straight leads (bulk)
3.8 Vdc to 30 Vdc
11 mA max.
digital sinking
-40°C to 150°C
[-40°F to 302°F]
Sensing and Internet of Things
5
Description
Magnetic actuation type
Package style
(packaging)
Supply voltage range
Supply current
Output type
Operating temperature
range