SNDH-H Series
Hall-Effect Speed Sensors
DESCRIPTION
The SNDH-H Series Hall-Effect Speed Sensors use a
magnetically biased Hall-effect integrated circuit to accurately
sense movement of ferrous metal targets. The specially
designed IC (integrated circuit) and a permanent magnet are
sealed in rugged, probe-type packages.
The flux density of the permanent magnet alters when
approached by ferrous metal. This is detected by the Hall ICs.
FEATURES
Solid state, non-contacting Hall-effect magnetic sensing
allows the device the ability to sense through dust, dirt and
debris, enhancing reliability and product life
Air gap up to 2,5 mm [0.098 in] allows sensor to be up to 2,5
mm away from target
High frequency switching capability (to 15 kHz) allows the
device to handle high RPMs (SNDH-H3L-G01, SNDH-H3C-
G03, SNDH-H3C-G05, SNDH-H3C-G06)
O-ring seal allows device to be sealed into housings
Two housing materials allow flexibility within the application:
stainless steel (corrosion and rust resistant): SNDH-H3L-
G01; plastic: SNDH-H3C-G03, SNDH-H3C-G04, SNDH-
H3C-G05 and SNDH-H3C-G06, SNDH-H3P-G01
Various probe lengths (20,3 mm [0.80], 24 mm [0.94 in]
27,5 mm [1.08], 40 mm [1.57 in], 46 mm [1.81 in], 67 mm
[2.64 in] simplify use within the application
High operating temperature [-40 C to 150 C (-40 F to
302 F)] (SNDH-H3C-G03, SNDH-H3C-G05, SNDH-H3C-
G06) allows the device to be used in high temperature
applications (e.g., engines)
Digital current sinking output (open collector) simplifies
electrical interfacing to control systems
Multiple connector options (Bosch 928000453, Delphi-
Packard Metripak 150.2 Type 101, Deutsch DT06-3S)
simplify installation
Omnidirectional capability eliminates the need to align the
sensor to the target, allowing the user to simply bolt the
device (SNDH-H3C-G0, SNDH-H3L-G01)
Zero speed versions indicate that the rotation has stopped,
allowing the device to work at extremely low RPMs (SNDH-
H3L-G01, SNDH-H3C-G04, SNDH-H3P-G01)
Stable performance over temperature range and airgap
range
POTENTIAL APPLICATIONS
Transportation
Engine camshaft and crankshaft speed
Transmission speed
Vehicle speed
Wheel speed
Pump speed
Motor speed
Industrial
Flow meters and flow turbines
Pump speed
Motor speed
If the sensor is positioned at the circumference of a revolving
gear wheel, for example, it detects the teeth and tooth spaces,
supplying a digital pulse output with frequency proportional to
gear wheel speed.
Optimum performance is dependent upon variables which
must be considered in combination: target material, geometry
and speed, sensor/target gap, and environmental temperature.
SNDH-H Series
Table 1. Specifications
Characteristic
Supply voltage range
Output
Supply current
Output current
Output leakage current
Reverse output voltage
Rise time (10% to 90%)
Fall time (90% to 10%)
Target orientation
Zero speed
Operating frequency
range
Operating temp. range
Dielectric
Housing material
Sensing air gap
Target tooth width
Target slot width
Tooth height
Target width
Sensor misposition to
target
Probe length
Probe diameter
Connector
SNDH-H3L-G01 SNDH-H3C-G03 SNDH-H3C-G04 SNDH-H3C-G05 SNDH-H3C-G06 SNDH-H3P-G01
4 Vdc to 24 Vdc 4.5 Vdc to 24 Vdc 6.5 Vdc to 24 Vdc
4.5 Vdc to 24 Vdc
digital current sinking (open collector)
6 mA max.
20 mA max.
14 mA max.
20 mA max.
1
30 mA
20 mA sinking
10 µA
-0.5 V
400 ns
15 µs max.
1 µs
15 µs max.
400 ns
0.01 µs max.
0.6 µs
0.01 µs max.
omnidirectional
alignment
omnidirectional
required
yes
no
yes
no
0 kHz to 15 kHz 2 Hz to 15 kHz
0 kHz to 12 kHz
2 Hz to 15 kHz
-40 °C to 100 °C -40 °C to 150 °C
[-40 °F to 212 °F] [-40 °F to 302 °F]
200 Vdc
stainless steel
up to 2,5 mm
up to 2 mm
[0.098 in]
[0.079 in]
2 mm [0.079 in] 2,5 mm [0.098 in]
may vary
2 mm [0.079 in] 5 mm [0.197 in],
constant
5 mm [0.197 in] 3 mm [0.118 in]
>3 mm
[0.118 in]
-40 °C to 125 °C
[-40 °F to 257 °F]
-40 °C to 150 °C
[-40 °F to 302 °F]
plastic
up to 2 mm
[0.079 in]
2,5 mm [0.098 in]
may vary
>2 mm [0.079 in]
5 mm [0.197 in]
constant
>2 mm [0.079 in]
3 mm [0.118 in]
>2 mm [0.079 in]
dependent on target geometry
40 mm [1.57 in] 24 mm [0.94 in]
9,53 mm
17,98 mm
[0.375 in]
[0.71 in]
3
leaded
Bosch 928000453
27,5 mm [1.08]
18,6 mm
[0.73 in]
Delphi-Packard
Metripak 150.2
Type 101
46 mm [1.81 in]
67 mm [2.64 in]
17,98 mm
[0.71 in]
Bosch 928000453
20,3 mm [0.80]
15,37 mm
[0.605 in]
up to 2,5 mm
[0.098 in]
3 mm [0.118 in]
up to 2,5 mm
[0.098 in]
3 mm [0.118 in]
>2 mm[0.079 in]
>2 mm [0.079 in]
6.5 Vdc to 24 Vdc
14 mA max.
1 µs
0.6 µs
alignment
required
yes
0 kHz to 12 kHz
-40 °C to 125 °C
[-40 °F to 257 °F]
Deutsch
DT06-3S
Notes:
1. Short circuit protected.
2
www.honeywell.com/sensing
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