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.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
Electrical Characteristics
1
(@ 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 ....................................................................................................................... < 5 ° 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 ...................................................................... 1.77 N-cm. (2.5 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
1
At 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.
*RoHS COMPLIANT
LEAD FREE
*RoHS COMPLIANT
VERSIONS
AVAILABLE
LEAD FREE
VERSIONS ARE
RoHS COMPLIANT*
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
Asia-Pacic:
Tel: +886-2 2562-4117
Email: asiacus@bourns.com
Europe:
Tel: +36 88 520 390
Email: eurocus@bourns.com
The Americas:
Tel: +1-951 781-5500
Email: americus@bourns.com
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