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SS461R

P1-P3P4-P6
Sensing and Productivity Solutions
Datasheet
Latching Digital Hall-effect Sensor ICs:
SS361RT, SS461R
DESCRIPTION
The SS361RT and SS461R are small, versatile, digital Hall-
effect sensor ICs that are operated by the magnetic field from
a permanent magnet or an electromagnet, and designed to
respond to alternating North and South poles. The SS361RT is
turned on by a North pole while the SS461R is turned on by a
South pole.
These latching digital Hall-effect sensor ICs have enhanced
sensitivity of only 50 G typical, at 25°C [77 °F] that often allows
for the use of less expensive magnets or wider air gaps. They
offer a robust IC design with reverse polarity protection and
150 °C [302 °F] capability.
These product are available in two package styles:
• SS361RT: Subminiature SOT-23 surface-mount package on
pocket tape and reel which allows for compact design with
automated component placement.
• SS461R: Flat TO-92-style package with straight leads in bulk
packaging which allows for a compact PC board layout.
FEATURES
• Latching magnetics
• Enhanced sensitivity
• Wide operating voltage range
• Built-in reverse voltage capability
• Robust design
• RoHS-compliant material meets directive 2002/95
POTENTIAL APPLICATIONS
Transportation
• Speed and RPM sensing
• Tachometer, counter pickup
• Motor and fan control
• Electronic window lift
• Convertible roof position
• Automotive transmission position
Industrial
• Speed and RPM sensing
• Tachometer, counter pickup
• Flow-rate sensing
• Brushless dc motor commutation
• Motor and fan control
• Robotics control
PORTFOLIO
The SS361RT and SS461R are part of Honeywell’s family of
Latching Digital hall-effect Sensor ICs, including:
• SS360PT, SS460P, SS460P-T2
• SS360NT, SS360ST, SS360ST-10K SS460S, SS460S-T2
• SS361CT, SS461C
• SS46
• SS461A, SS466A
005902
Issue 3
SS361RT
SS461R
2
Sensing and Productivity Solutions
Latching Digital Hall-effect Sensor ICs
SS361RT, SS461R
Table 2. Absolute Maximum Specifications
Characteristic Min. Typ. Max. Unit
Supply voltage -28.0 — 28.0 V
Applied output voltage -0.5 — 28.0 V
Output current — — 20.0 mA
Magnetic flux — — no limit Gauss
Table 1. Electrical and Environmental Specifications
(At Vs = 3.0 Vdc to 24.0 Vdc, 20 mA load, T
A
= -40 ºC to 150 ºC [-40 ºF to 302 ºF] except where otherwise specified.
Characteristic Condition Min. Typ. Max. Unit
Supply voltage:
SS361RT
SS361RT
SS461RT
150 °C [302 °F]
-40 °C to 125 °C [-40 °F to 257 °F]
—
3.0
3.0
3.0
—
—
—
12.0
24.0
24.0
VVdc
Supply current
V
supply
= 3 Vdc at 25 °C [77 °F]
V
supply
= 5 Vdc at 25 °C [77 °F]
—
—
—
—
3.5
4.0
—
5.0
6.0
8.0
mA
Output current — — — 20.0 mA
V
sat
Gauss > 120 — — 0.4 V
Output leakage current Gauss < -120 — — 10.0 μA
Rise/fall time 25 °C [77 °F] — — 1.5 μs
Thermal resistance:
SS361RT
SS461R
single layer, single sided PCB
—
—
—
303
233
—
—
°C/W
Magnetic characteristics:
Operate (Bop)
Release (Brp)
Differential
—
—
—
5
-120
50
50
-50
100
120
-5
170
Gauss
Operating temperature — -40 [-40] — 150 [302] °C [°F]
Storage temperature — -40 [-40] — 150 [302] °C [°F]
Soldering temperature and time:
SS361RT
SS461RT
infrared reflow process: 245 °C [473 °F] for 10 s max.
wave soldering process: 250 °C to 260 °C [482 °F to 500 °F] for 3 s max.
NOTICE
The magnetic field strength (Gauss)
required to cause the switch to change
state (operate and release) will be as
specified in the magnetic characteristics.
To test the switch against the specified
limits, the switch must be placed in a
uniform magnetic field.
NOTICE
Absolute maximum ratings are the extreme limits the device will momentarily withstand without damage to the device. Electrical
and mechanical characteristics are not guaranteed if the specified voltage and/or currents are exceeded, nor will the device
necessarily operate at absolute maximum ratings.
NOTICE
These Hall-effect sensor ICs may have an
initial output in either the ON or OFF state
if powered up with an applied magnetic
field in the differential zone (applied
magnetic field >Brp and <Bop). Honeywell
recommends allowing 10 μs after supply
voltage has reached 5 V (SS361RT) or
3 V (SS461R) for the output voltage to
stabilize.
3
Sensing and Productivity Solutions
Latching Digital Hall-effect Sensor ICs
SS361RT, SS461R
Figure 1. Typical Magnetic Characteristics vs Ambient Temperature at V
supply
= 12 Vdc.
Magnetic Switch Point (Gauss)
-40
[-48]
Ambient Temperature (°C [°F])
-20
[-4]
0
[32]
20
[68]
40
[104]
80
[176]
100
[212]
60
[140]
120
[248]
-80.0
-60.0
-40.0
-20.0
0.0
20.0
40.0
60.0
80.0
Operate Point
Release Point
140
[284]
160
[320]
Figure 4. Magnetic Activation
South Pole toward IC:
Output = High
N
S
North Pole toward IC:
Output = Low
S
N
SN
NS
North Pole toward
IC:
Output = High
South Pole toward IC:
Output = Low
Label SideLabel Side
SS361RT
SS461R
Supply Voltage (Vdc)
Temperature (°C [°F])
-40
[-40]
125
[257]
0
5
10
15
20
25
0
[32]
150
[302]
Figure 2. Current Sinking Output Block Diagram Figure 3. SS361RT Rated Supply Voltage
Hall
Sensor IC
Trigger
Circuit
and Amplifier
V
supply
(+)
Output (O)
Ground (-)
P1-P3P4-P6

SS461R

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Buy SS461R
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Description:
MAGNETIC SWITCH LATCH TO92-3
Lifecycle:
New from this manufacturer.
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