Geartooth Speed Sensors

This class of sensor is referred to as Gear Tooth Sensors because they record the movement of ferrous targets, typically gear teeth, passing through a magnetic field. Magnetic Sensors Corporation offers four basic types of gear tooth sensors:

To View or Download Catalog Data Sheets click on the highlighted Part Number. (Adobe Acrobat Reader required. Get it  here)



    Analog Variable Reluctance (VR) Speed Sensors are passive sensors and do not require any external power source. The sensor generates a sinusoidal output voltage proportional to target speed and air gap.

    Target speed range for use with analog VR sensors ranges from 20 inches per second (IPS) to several hundred IPS. The output voltage, depending on the air gap and the target surface speed, ranges from a few millivolts at the slowest target surface speed to several volts at the highest target speed as depicted graphically on the catalog data sheets.

Smooth Housing

Part No

Housing
Dia. Or Thread

Housing
Length
Inches

Pole
Piece

Resistance Ohms ±20%

Inductance mH ±20%

Output
Voltage @ 500 ips
.005" Air gap

Operating Temp °C

Connector
401004-10

.150"

 

 

20

165

0.57 (20 Pitch)

-40 to 100

AMP

401012-40

.218"

0.530

0.061

115-165

10-18

9 (20 Pitch)

-40 to 114

30 AWG

401022-60

.250"

0.850

0.060

130

16

6.4 (16 Pitch)

-40 to 100

28 AWG
/Molex

401021-20

.375"

1.375

0.093

650

130

31 (20 Pitch)

-40 to 100

22 AWG

401021-30

.375"

2.500

0.093

650

130

31 (20 Pitch)

-40 to 100

22 AWG

401021-40

.375"

4.500

0.093

650

130

31 (20 Pitch)

-40 to 100

22 AWG

401021-60

.375"

1.250

0.093

115-165

10-18

30 (20 Pitch)

-40 to 114

22 AWG Shielded

401014-40

.375"

1.250

0.093

550-670

130

50 (20 Pitch)

-40 to 114

26 AWG
Typical Specifications. If you don't see the exact part you need call us, we probably have one that will suit.
 

Threaded Housing

Part No

Housing
Dia. or
Thread

Housing
Length
Inches

Pole
Piece

Resistance Ohms ±20%

Inductance mH ±20%

Output Voltage @ 500 ips .005" Air gap

Operating
Temp °C

Connector

401005-10

3/8/24

1.250

0.040

670

174

29 (20 Pitch)

-40 to 100

PVC

401027-20

5/8/18

3.125

0.187

40 - 85

25

42 (8 Pitch)

-40 to 125

20 AWG

401027-30

5/8/18

5.000

0.188

40 - 85

25

42 (8 Pitch)

-40 to 125

Electro-Transfer
Typical Specifications. If you don't see the exact part you need call us, we probably have one that will suit.
 

Threaded Housing
with Hex Head

Part No

Housing
Dia. or
Thread

Housing
Length
Inches

Head

Pole
Piece

Resistance Ohms ±20%

Inductance mH ±20%

Output Voltage @ 500 ips .005" Air gap

Operating
Temp °C

Connector

401005-90

3/8/24

1.000

9/16 Hex

0.093

 

130

34 (20 Pitch)

-40 to 100

.025x0.375 Pins

401093-00

M12x1.25

1.375

3/4 Hex

0.093

1800

330

33 (20 Pitch)

-40 to 150

18 AWG

401027-40

5/8-18 x

3.125

3/4 Hex

0.188

40-85

25

42 (8 Pitch)

-40 to 125

Electro-Transfer

401027-50

M16x1.5

3.125

3/4 Hex

0.188

40-85

25

42 (8 Pitch)

-40 to 125

Electro-Transfer

401093-10

5/8/18

3.300

15/16 Hex

0.093

1800

330

40 (16 Pitch)

-40 to 150

18 AWG

401090-00

3/4/16

2.300

3/4 Hex

0.188

450

210

68 (16 Pitch)

-40 to 125

18 AWG
Typical Specifications. If you don't see the exact part you need call us, we probably have one that will suit.
 

Threaded Housing
with Knurled Head

Part No

Thread

Housing Length Inches

Head

Pole
Piece

Resistance Ohms ±20%

Inductance mH ±20%

Output Voltage @ 500 ips .005" Air gap

Operating Temp °C

Connector

401022-20

1/4-28

0.850

Straight Knurl

0.06

130

20

54 (20 Pitch)

-40 to 100

26 AWG

401014-10

3/8/24

0.812

Knurled

0.093

670

130

45 (20 Pitch)

-40 to 100

28 AWG Shielded

401027-60

5/8/18

3.125

Knurled

0.187

1000

450

90 (8 Pitch)

-40 to 125

 

401070-00

5/8/18

4.250

Knurled

0.188

40 - 85

25

42 (8 Pitch)

-40 to 125

Round

401070-10

5/8/18

6.125

Knurled

0.187

40 - 85

25

42 (8 Pitch)

-40 to 125

Round

401070-20

M16x1.5

4.250

Knurled

0.187

40 - 85

25

42 (8 Pitch)

-40 to 125

Round

401070-30

5/8/18

4.250

Knurled

0.187

114 - 198

85

52 (8 Pitch)

-40 to 125

Round

401070-40

5/8/18

2.625

Knurled

0.187

114 - 198

85

52 (8 Pitch)

-40 to 125

Round

401070-60

5/8/18

3.600

Knurled

0.187

114 - 198

85

52 (8 Pitch)

-40 to 125

Round

401070-50

5/8/18

2.625

Knurled

0.187

114 - 198

85

46 (10 Pitch)

-40 to 125

Round

401070-70

5/8/18

2.625

Knurled

0.106

114 - 198

85

90 (8 Pitch)

-40 to 125

Round
Typical Specifications. If you don't see the exact part you need call us, we probably have one that will suit.
 

Dual Output
Threaded Housing and Threaded Housing with Hex Head

MSC P/N

Thread
size

Thread
Length

Head
size

Jam Nut
size

Pole
Piece

Resistance
(OHMS)

403001-00

5/8-18

3"

 

.750 x .250

0.187

500

403001-10

5/8-18

3"

.750 x .3125

.750 x .250

0.188

180

403001-20

5/8-18

3.75"

.750 x .3125

.750 x .318

0.187

500

403002-00

3/4-16

2.6"

 .750 x .430

 1.125 x .422

0.187

500

SK10716

M18x1.0

3.4"

 1.00 x .375

 1.038 x .354

0.187

500

SK10806

3/4-16

4.5"

 

 1.00" x.1875

n/a

500
Typical Specifications. If you don't see the exact part you need call us, we probably have one that will suit.

 Options:
  · Units can be made to any length.
· Cases are available in M18x1.5.
· Available in Smooth Housings.
· MSC connectors.
· Welded polarizing key.
 
Digital Output Variable Reluctance Near Zero Speed Sensors

Digital output VR Speed Sensors produce a digital (square wave) pulse directly proportional to target speed. Active solid state signal conditioning integral with the sensor converts the analog VR output to digital pulses. Sensing range from 125 IPS to 1500 IPS at a repetition rate (frequency) to 50,000 Hz.

Digital VR
Near Zero Speed Sensors

Part No

Housing Length
Inches

Head

Pole
Piece

Input Voltage
Vcc

Input Current
Icc

Output Current
(16 Pitch)

Operating
Temp °C

Connector

402011-00

1.25

Knurled

0.093

+5 to +25 VDC

10 mA Max

10 mA

-40 to 125

Round

Typical Specifications. If you don't see the exact part you need call us, we probably have one that will suit.
 
Zero Speed Non-contact Geartooth Speed Sensors

    Hall effect, zero speed non-contact sensors provide a TTL compatible constant amplitude output over target speed ranges from 0 Hz to 50,000 Hz with air gaps up to .125".

· True Zero Speed Sensing.
· Wide Operating Voltage Range from 5 VDC to 24 VDC.
· Open Collector Output with Sinking Currents to 35 MA.
· Operating Temperature Range to 150°C.

 

Threaded Housing

Part No

Thread

Overall
Length

Input
Voltage
VDC

Output
Voltage
Max

Output
Current

 Output 
Signal

Output
Pulse
Rate

Air
Gap
Max

Dielectric
Strength
VRMS

Operating
Temp
°C

427008-00

1/2-20

1.25"

+5 to +24

  

7 mA

0-1

0 to 20,000

.030

150

-40 to 105

427008-10

1/2-32

1.25"

4.8 to 18

  

7 mA

0-1

0 to 20,000

.030

150

-40 to 105

Typical Specifications. If you don't see the exact part you need call us, we probably have one that will suit.
 

Smooth Housing

Part No

Diameter

Length

Input
Voltage
VDC

Output
Voltage
Max

Output
Current

 Output 
Signal

Output
Pulse
Rate

Air
Gap
Max

Dielectric
Strength
VRMS

Operating
Temp
°C

427 Series

.375

1.40"

+5 to +24

.004

25 mA

 

0 to 20,000

 

 

-20 to 100

Typical Specifications. If you don't see the exact part you need call us, we probably have one that will suit.
 

Quadrature Speed and Direction Geartooth Sensors

 
 

Smooth Housing

Part No
Housing
size
Input
Voltage
VDC
Input
Current
Output
Current
Air Gap
Speed
Range
Teeth/Sec
Quadrature
Phasing
VRMS
Operating
Temp °C
Cable /
Connector
SK10907
1/2"
x 1.110
4.5 to 18
12 mA Max
20 mA Each
2kΩ pullup
.010 Max
0 - 12,000
90° ±20%
-25 to 100
Four 8"
26 AWG
19/34 PVC
SK10910
1/2"
x 2.125
4.5 to 24
13 mA Max
Sq. Wave
4.5-0.6 VDC
.045 Max
0 - 5,000
90° ±20%
-40 to 110
Four 3"
26 AWG
19/34 PVC
427100-10
5/8"
x 1.100
+5
28 mA Max
5 mA Each
.010 Max
0 - 18,000
90° ±20%
-40 to 125
48" 4-Cond
22 AWG
Shielded
SK10922
3/4"
x 2.000
4.5 to 24
12 mA Max
20 mA Each
2kΩ pullup
.040 Max
0 - 12,000
90° ±20%
-25 to 100
Four 12"
24 AWG
19/34 PVC
Typical Specifications. If you don't see the exact part you need call us, we probably have one that will suit.
 

 
 

Threaded Housing

Part No
Thread
size
Input
Voltage
VDC
Input
Current
Output
Current
Air Gap
Speed
Range
Teeth/Sec
Quadrature
Phasing
VRMS
Operating
Temp °C
Cable /
Connector
SK10999
5/8-18
x 1.000
4.5 to 24
12 mA Max
20 mA Each
2kΩ pullup
.040 Max
0 - 12,000
90° ±20%
-25 to 100
Four 72"
22 AWG
Shielded
Teflon Jacket
SK10984
5/8-18
x 2.37
4.5 to 18
12 mA Max
20 mA Each
4.7kΩ pullup
.030 Max
0 - 12,000
90° ±20%
-25 to 125
Four 12"
22 AWG
Teflon Insul.
 
Typical Specifications. If you don't see the exact part you need call us, we probably have one that will suit.
 

 
 

Threaded Housing
with Hex Head

Part No
Thread
size
Overall
Length
Head
Input
Voltage
VDC
Input
Current
Output
Current
Air Gap
Speed
Range
Teeth/Sec
Operating
Temp °C
Cable /
Connector
SK10846
5/8-18
x 1.50
3.30
1" Hex
7.5 to 26
12 mA Max
20 mA Each
4-0.6 VDC
.050 Max
(See Note)
-40 to 105
Five 36"
22 AWG
Shielded
SK11005
3/4-20
x 1.38
3.69
1" Hex
12
70 mA Max
20 mA Each
5-0.6 VDC
.025 Max
0 - 10,000
-40 to 105
24" 22 AWG
Mil-C-27500
SK10923
3/4-16
x 2.00
2.34
3/4" Hex
4.5 to 24
13 mA Max
20 mA Each
4-0.6 VDC
.030 Max
0 - 20,000
-40 to 105
Four 120"
22 AWG
Shielded

Typical Specifications. If you don't see the exact part you need call us, we probably have one that will suit.
 

    Metric Conversion table
    Here's a handy little table to help convert standard metric diameters to inches and standard inch diameters to metric measurements.

    For a metric calculator to do other conversions, click here.

    Millimeters to Inches
    Inches to Millimeters
    12mm
    0.4725 in.
    3/8 in.
    9.525mm
    14mm
    0.5512 in.
    1/2 in.
    12.7mm
    16mm
    0.6299 in.
    5/8 in.
    15.875mm
    18mm
    0.7087 in.
    3/4 in.
    19.05mm
    20mm
    0.7874 in.
    7/8 in.
    22.225mm
    22mm
    0.8662 in.
    1.00 in.
    25.4mm

Magnetic Sensors Corporation
1365 North McCan Street · Anaheim, CA 92806 · Tel: 714/630-8380
Fax: 714/630-4368 · Email: sales@magsensors.com