NT *RoHS VCEOARVMSIAPILOLINAASB LE Features NT MPLIA n Two channel quadrature output n Ball bearing option for high operating O HS C n Bushing or servo mount speed up to 3000 rpm *Ro n Square wave signal n RoHS compliant* n Small size n Resolution to 256 PPR REE n CMOS and TTL compatible D F n Long life LEA EN - Rotary Optical Encoder Electrical Characteristics ORIESnlueusepstucpopltaurlluiyttci . toa.Vi.onl.o .n T.lR..tr..aa..e..gv..s..eei..s...l...t ....a........n........c........e........ ....(....5........0........0........ ....V........D............C........)........ .........................................................................................................L.....V.....EE.....A.....RD.....H S.....ISF..... O.....RC.....NEO.....SE..... M.....AP.....R.....LI..E... .....A.....N.....T.....*.........2........-....b........i....t.... ....q........u........a........d........r....a........t....u........r........e........ ....c....o........d........e........,.... ....C............h........a........n........n........e........l.... ....A........ ....l....e........a........d........s.... ....C............h........a........n........n........e........l.... ....B........ ....b........y........ ....9........0........ ....º.... ....(........e........le...2...c...5...t... r...ti...oc...... a...2...l...)5... ...w6...... ...ict..5h..y... ..c0c..l.. le.Vo1.s.c,D. 0.kp.C0.we.0 Cri±s mro0een. e2vrtogoi5ntol auuVhttoDiimoouCnnss Supply Current....................................................R.o.........................................................................................................................................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 (Full quadrature output cycles per shaft revolution) 25* 125 Channel B 50* 128 64 200 100 256 1 cycle 360 ° ± 90 ° For Non-Standard Resolutions—Consult Factory Clockwise rotation * Channel B leads Channel A *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.

EN - Rotary Optical Encoder Dimensional Drawings (2.1.5040)TYP. (..603255)SRQa.Odpiatli oLneaalds (1.87.35) (6.2.3550) (1.56.2858) Ci•n ocWnlusdiurienlt glfea:acdto oryr cfoarb olep toiopntiso nnsot shown, 2.36 • Connectors (.093) 21.21 • Non-standard resolutions 9.525 (.835) (.375) 1/4-32 UNEF • Special shaft/bushing sizes and 8.636 9.53 features (.34 ) 3.167 + .000/ – .0076DIA. 1.37 (.375) • Special performance characteristics (.1247 + .000/ – .0003) (.054) • PCB mounting bracket Bushing Style C 7.14 + .000/ – .0508 (6.2.344927 ++ ..000000//3 ––/8 ..-00300270 U63)NDEIFA. (1.04.036(29.23 .+ 57+ 35. 0.)00000// – – . 0.050028)DIA. (.28(19.3 .+57 35.0)00/ – .002) DIA. R.(.2.05140 ± . 0.00736) F (.62.43(95.427.51)48) LSE1HN2AG.F7TTH SHL(ADEF2INTM.G5 F.4T LFHA)T (.050) (.100) 15.9 5.08 (.625) (.200) 9.53 1.57 3/8-32 UNEF 1.57 1/4-32 UNEF 19.1 8.25 (.375) (.062) (.062) .787 ± .254 (.750) (.325) 6.342 + .000/ – .0076DIA. 3.167 + .000/ – .0076DIA. (.031 ± .010) 22.2 9.65 (.2497 + .000/ – .0003) (.1247 + .000/ – .003) (.875) (.380) Bushing Style A Bushing Style S Bushing Style T Shaft End Style C (Ball Bearing) (Ball Bearing) 1.57 2.54 4 PLCS. TERMINATION DIAGRAM 1.57 (.062) 11.13 (.100) (.062) 1.57 (.438) 4.14 21.8 (.062) 3.167 + .000/ – .0076 (.163) CHANNEL A CHANNEL B (.86) (.1247 + .000/ – .003)DIA. GROUND N.C. Vcc 18.11 Optional (.713) Radial Leads 0.99 - A + B 9 PLCS.(.039)DIA. MIN. (1.795.0050 ±± ..00102075)DIA. 2 PLCS.(6.2.9795) 22.2 + .0127 / – .1270 DIA. (.875 + .0005 / – .0050) Recommended Board Layout Servo Mount Style W (Ball Bearing) with Bracket Ribbon Cable Option Detail Bushing with Bracket Radial Leads Connector Connector Pinout Pinout 5 5 4 4 —A+B 3 3 2 2 1 1 Axial Ribbon Cable Option Radial Ribbon Cable Option MM DIMENSIONS: (INCHES) 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.

GENERAL INFORMATION The Bourns® EN model is a self-contained rotary optical encoder. Bourns encoder output signals are square wave digital pulses which It produces a 2-bit quadrature signal which is suitable for digital do not require debounce circuitry. Both features make it possible systems where both magnitude and direction of adjustment must to significantly reduce the memory overhead, wiring and wiring inter- be provided. The EN encoder is ideal for use as a digital panel connects required by other types of control devices. control or as a position sensing device in applications where long life, reliability, high resolution and precise linearity are critical. EN optical encoders offer a useful rotational life of from 10 million to 200 million shaft revolutions, making them ideal for extended service The EN series encoder converts rotary input into electrical signals applications. The Bourns encoder is also compact and well suited for which can be used by microprocessors without A/D conversion. situations where the available space is limited. EN - Rotary Optical Encoder How To Order BOURNS EN SERIES OPTICAL ENCODER E N C 1 J - D 2 8 - L 0 0 1 2 8 L ANTI-ROTATION SHAFT LENGTH* RoHS IDENTIFIER LUG POSITION Code Description Code Description Code Description 16 1/2 " Long L Compliant D None 20 5/8 " Long J 9:00 Position 24 3/4 " Long RESOLUTION P Rear Mount- 28 7/8 " Long Cycles Per ing Bracket Code Revolution TERMINAL*** 00025 ””25 SWITCHING CONFIGURATION 00050 ””50 CONFIGURATION Code Description 00064 ””64 Code Description L Axial, Multi- 00100 100 Channel A Purpose Pin 00125 125 Leads R Radial, Multi- 00128 128 1 Channel B Purpose Pin 00200 200**** By 90 ϒ M Axial, Ribbon 00256 256**** (Clockwise & Connector Rotation)** 10 “ N Radial, Ribbon & Connector 10 ” W Axial, Ribbon 10 “ - No Connector Y Radial, Ribbon 10 ” - No Connector SHAFT STYLE Use With Code Description Bushings (Code) B 1/4 " Dia., Plain End ””A, S D 1/8 " Dia., Plain End C, T, W C 1/4 " Dia., Single A, S Flatted BUSHING CONFIGURATION Code Description A 3/8 "D X 3/8 "L Threaded C 1/4 "D X 1/4 "L Threaded S 3/8 "D X 3/8 "L Threaded (Ball Bearing) T 1/4 "D X 3/8 "L Threaded (Ball Bearing) * Shaft length measured from mounting surface. ** 25 and 50 PPR is reversed (Channel B leads Channel A). W Servo Mount 7/8 "D *** Standard ribbon cable is 10 " long. Consult factory for other lengths. (Ball Bearing) - **** Available with S, T, and W bushing configuration only. Not available with Anti- Rotation Lug option REV. 01/17 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.