Features
n Non-contacting magnetic technology
n Highly resistant to vibration/shock
n Highly resistant to fluid/dust ingress
n Programmable slope
n Robust design for industrial applications
n Ideal memory positioning sensor
n RoHS compliant*
AMM20B Multiturn Magnetic Position Sensor
*RoHS Directive 2002/95/EC Jan. 27, 2003 including
annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
Users should verify actual device performance in their
specific applications.
The products described herein and this document are
subject to specific legal disclaimers as set forth on the last
page of this document, and at www.bourns.com/docs/legal/
disclaimer.pdf.
Electrical Characteristics1 (@ 25 °C)
VDD Supply Voltage ..................................................................................................5 V ± 10 %
Supply Current 2
For Low Speed Processing (Code L) ................................................................... 12 mA max.
For High Speed Processing (Code H) ................................................................. 15 mA max.
Output Signal (Single) ..................................................................................................... Analog
Independent Linearity ...................................................... ±0.5 % (±0.3 % available on request)
Backlash ..................................................................................................................... < 10 ° typ.
Effective Electrical Angle 3
3-10 Turns ...........................1080 °, 1440 °, 1800 °, 2160 °, 2520 °, 2880 °, 3240 ° or 3600 °
11-16 Turns .....................................................3960 °, 4320 °, 4680 °, 5040 °, 5400 °, 5760 °
Voltage Output (Programmable) ................................................................ 1 to 99 % VDD ±1 %
Output Resolution ...............................................................................................12 bit @ 3600 °
Load Resistance Recommended ....................................................................... 10K ohms to ∞
Overvoltage Protection .................................................................................................+20 VDC
Reverse Voltage Protection ...........................................................................................-10 VDC
Environmental Characteristics
Operating and Storage Temperature .................................................................-40 ° to +125 °C
Humidity....................................................................... MIL-STD-202, Method 103, Condition B
Insulation Resistance @ 500 VAC..........................................................................100 MW min.
Rotational Life (Shaft Revolutions) .............................................................................. 50 million
Vibration ..............................................................................................................................15 G
Shock...................................................................................................................................50 G
IP Rating ..............................................................................................................................IP50
Mechanical Characteristics (@ 25 °C)
Mechanical Angle
3-10 Turns ............................................................................................................. 3960 ° min.
11-16 Turns ........................................................................................................... 6480 ° min.
Shaft/RPM ...........................................................................................................500 RPM max.
Torque
Starting & Running ...................................................................... 2.82 N-cm. (4.0 oz-in.) max.
Mounting ........................................................................... 170-200 N-cm (15-18 lb.-in.) max.
Shaft Material ...................................................................................................... Stainless steel
Terminal Pins ......................................................................Phos. Bronze, 100 % tin plated (e3)
Bearing .................................................................................................................Bronze sleeve
Housing and Rear Lid .................................................................................................... UL94V0
Soldering Condition
Manual Soldering ................................................. 96.5Sn/3.0Ag/0.5Cu solid wire or no-clean
rosin cored wire; 370 °C (700 °F) max. for 3 seconds
Wave Soldering .............................................. 96.5Sn/3.0Ag/0.5Cu solder with no-clean ux;
260 °C (500 °F) max. for 5 seconds
Wash processes ........................................................................................Not recommended
1At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
2 See “Processing Speed” in How to Order selection guide.
3 Other Effective Electrical Angles available. See How to Order selection guide.
Product Dimensions
MEXICO
AMM20B
S1+-
14.29
(0.56)
21.55 ± 0.38
(.848 ± .015)
1.570
(0.062)
0.64 ± 0.25
(.025 ± .010)
0.64 ± 0.25
(.025 ± .010)
5.080
(0.200)
20.22
(0.80)
10.29 +0.00/-0.13
(.405 +.000/-.005) DIA.
6.34 +0.00/-0.07
(.250 +.000/-.003) DIA.
7.62 ± 0.38
(.300 ± .015)
20.62 ± 0.78
(.812 ± .031)
X 45 ° CHAMFER
0.250
(0.010)
9.53 ± 0.38
(.375 ± .015)
3/8 ” 32-UNEF-2A THD
WIDE XADJUSTMENT SLOT 0.81
(.032) DEEP
0.81
(.032)
DIMENSIONS: MM
(INCHES)
TOLERANCES EXCEPT WHERE NOTED
DECIMALS: .XX ± .50
(.02)
.XXX ± .127
(.005)
No. of Turns EEA Resolution
3 1080 1228
4 1440 1638
5 1800 2047
6 2160 2456
7 2520 2866
8 2880 3275
9 3240 3685
Resolution
No. of Turns EEA Resolution
10 3600 4094
11 3960 2816
12 4320 3072
13 4680 3328
14 5040 3584
15 5400 3840
16 5760 4096
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
AMM20B Multiturn Magnetic Position Sensor
How To Order
REV. 03/19
Standard Output: 10-Turn CW Increasing (Code 380 Shown)
8
10
12
6
4
2
0
0 100 200
Shaft Side Load (grams)
Rotational Life (Millions of Cycles)
300 400 50050 150 250 350 450
40
30
20
10
0
90
100
80
70
60
50
0 1000
CW DIRECTION
1500
Mechanical Angle (°)
Vout (%)
2500 3000 4000500 2000 3500
OUTPUT
AMM2 0B5A1BLASL380
Code
M
Description
Multiturn
CONFIGURATION
Code
B
Description
Bushing Mount,
Stainless Steel Shaft:
13/16 ” FMS, 1/4 ” Dia.
Bushing Material: Brass
Bearing Type: Sleeve
MOUNTING CONFIGURATION
Code
AM
Description
Analog Magnetic
MODEL DESIGNATOR
Code
20
Description
20 mm
SIZE
3-10 Turns
Code
Type
Analog / Single Output
NUMBER OF TURNS / OUTPUT TYPE
Code
24
32
40
48
56
64
72
80
Description
1080 ° (3 Turns)
1440 ° (4 Turns)
1800 ° (5 Turns)
2160 ° (6 Turns)
2520 ° (7 Turns)
2880 ° (8 Turns)
3240 ° (9 Turns)
3600 ° (10 Turns)
EFFECTIVE
ELECTRICAL ANGLE
3-10 Turns
Code
88
96
02
10
18
26
Description
3960 ° (11 Turns)
4320 ° (12 Turns)
4680 ° (13 Turns)
5040 ° (14 Turns)
5400 ° (15 Turns)
5760 ° (16 Turns)
11-16 Turns
Code
5
Description
5 VDC
Code
H
L
Output Refresh Rate
High (400 µs Typ.)
Low (660 µs Typ.)
PROCESSING SPEED
Code
S
Description
Slotted
SHAFT STYLE
Code
A
Description
1-99 % of VCC
VOLTAGE RATIO ±1 %
Code
1
3
Description
CCW (Output Increasing)
CW (Output Increasing)
Shaded areas represent most common features.
DIRECTION
Code
A
B
C
EEA (Turns)
3-16
5-16
10-16
Description
± 1.0 %
± 0.5 %
± 0.3 %
INDEPENDENT LINEARITY
A1
11-16 Turns
B1
Code
L
Description
Axial PC Pin
TERMINAL CONFIGURATION
SUPPLY VOLTAGE, VCC
Rotational Life vs. Shaft Side Load
40
50
60
30
20
10
0
0 100 200
Shaft Side Load (grams)
Rotational Life (Millions of Cycles)
300 400 50050 150 250 350 450
40
30
20
10
0
90
100
80
70
60
50
0 1000
CW DIRECTION
1500
Mechanical Angle (°)
Vout (%)
2500 3000 4000500 2000 3500
OUTPUT
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C1753 05/17/18R
