Features
■ Two channel quadrature output
■ Bushing or servo mount
■ Square wave signal
■ Small size
■ Ball bearing option for high operating
speed up to 3000 rpm
■ RoHS compliant*
■ Resolution to 256 PPR
■ CMOS and TTL compatible
■ Long life
EN - Rotary Optical Encoder
Electrical Characteristics
Output................................................................................... 2-bit quadrature code, Channel A leads Channel B by 90 º (electrical) with clockwise rotation
Resolution...............................................................................................................................................................................25 to 256 cycles per revolution
Insulation Resistance (500 VDC) .................................................................................................................................................................. 1,000 megohms
Electrical Travel.....................................................................................................................................................................................................Continuous
Supply Voltage.........................................................................................................................................................................................5.0 VDC ±0.25 VDC
Supply Current.............................................................................................................................................................................................. 26 mA maximum
Output Voltage
Low Output .................................................................................................................................................................................................0.8 V maximum
High Output.....................................................................................................................................................................................................4 V minimum
Output Current
Low Output ................................................................................................................................................................................................25 mA minimum
Rise/Fall Time..................................................................................................................................................................................................200 ns (typical)
Shaft RPM (Ball Bearing) ....................................................................................................................................................................... 3,000 rpm maximum
Power Consumption..................................................................................................................................................................................136 mW maximum
Pulse Width (Electrical Degrees, Each Channel)............................................................................................................................................180 º ±45 º typ.
Pulse Width (Index Channel)................................................................................................................................................................................. 360 º ±90 º
Phase (Electrical Degrees, Channel A to Channel B)........................................................................................................................................90 º ±45 º typ.
Environmental Characteristics
Operating Temperature Range.......................................................................................................................................-40 ºC to +75 ºC (-40 °F to +167 °F)
Storage Temperature Range ..........................................................................................................................................-40 °C to +85 °C (-40 °F to +185 °F)
Humidity................................................................................................................................................................. MIL-STD-202, Method 103B, Condition B
Vibration ............................................................................................................................................................................................................................5 G
Shock...............................................................................................................................................................................................................................50 G
Rotational Life
A & C Bushings (300 rpm maximum)**............................................................................................................................................10,000,000 revolutions
W, S & T Bushings (3,000 rpm maximum)**..................................................................................................................................200,000,000 revolutions
IP Rating..........................................................................................................................................................................................................................IP 40
Mechanical Characteristics
Mechanical Angle ........................................................................................................................................................................................ 360 ° Continuous
Torque (Starting and Running)
A & C Bushings (Spring Loaded for Optimum Feel)..............................................................................................................1 N-cm (1.5 oz-in.) maximum
W, S & T Bushings (Ball Bearing Shaft Support)..............................................................................................................0.07 N-cm (0.1 oz-in.) maximum
Mounting Torque.................................................................................................................................................... 1.7 to 2.0 N-m (15 to 18 lb.-in.) maximum
Shaft End Play.................................................................................................................................................................. 0.30 mm (0.012 ˝) T.I.R. maximum
Shaft Radial Play.............................................................................................................................................................. 0.12 mm (0.005 ˝) T.I.R. maximum
Weight .......................................................................................................................................................................................................... 11 gms. (0.4 oz.)
Terminals ......................................................................................................................................................................Axial or radial pc pins or ribbon cable
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 flux
260 °C (500 °F) max. for 5 seconds
Wash processes .................................................................................................................................................................................... Not recommended
Marking.................................................................................................................................Manufacturer’s trademark, name, part number, and date code.
Hardware.................................................................One lockwasher and one mounting nut supplied with each encoder, except on servo mount versions.
**For resolutions ≤ 128 quadrature cycles per shaft revolution.
Quadrature Output Table
OUTPUT VOLTAGE
STANDARD RESOLUTIONS AVAILABLE
Channel A
Channel B
(Full quadrature output cycles per shaft revolution)
25*
50*
64
125
128
200
256
100
1 cycle
For Non-Standard Resolutions—Consult Factory
* Channel B leads Channel A
360 ° ± 90 °
Clockwise rotation
*RoHS Directive 2015/863, Mar 31, 2015 and Annex.
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 atwww.bourns.com/docs/legal/disclaimer.pdf.
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