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PL
Features

IA
NT
Lead free HCMOS, CMOS and TTL compatible Compact package size High rotational cycle life Standard or high force push switch option Optional detent
oH
S
CO

Splashproof shaft seal Recommended for human/machine interface applications (HMI) Cable/connector option Optional bracket
*R
M
EM14 - 14 mm Rotary Optical Encoder w/Switch
Electrical Characteristics
Electrical Output ......................................................................................................................................................................................2-bit quadrature code Resolution ............................................................................................................................................................................8 to 64 pulses per revolution (PPR) Supply Voltage (VCC) ..................................................................................................................................................................................5.0 VDC 0.25 VDC Supply Current (ICC) ........................................................................................................................................................................................26 mA maximum Output Voltage Low (VCE(sat)), per Channel ..........................................................................................................................................800 mV maximum at I(SINK) = 25 mA High (VO(HI)), per Channel ..........................................................................................................................................4.0 VDC minimum @ VCC = 4.75 VDC Output Current I(SINK), per Channel ..................................................................................................................................................................25 mA minimum Rise/Fall Time ........................................................................................................................................................................................................200 ns typical Power Dissipation..........................................................................................................................................................................................167 mW maximum Pulse Width (per Channel) ....................................................................................................................................................................................180 e typical Phase Angle (Channel A Leads Channel B, Clockwise Rotation) ..........................................................................................................................90 e 45 e Insulation Resistance @ 500 VDC ....................................................................................................................................................1,000 megohms minimum Operating RPM ....................................................................................................................................................................................................120 maximum Switch Power Rating ............................................................................................................................................12 VDC / 20 mA (600 ohms maximum load) Switch Contact Resistance ........................................................................................................................................................................200 ohms maximum
Environmental Characteristics
Operating Temperature Range @ 5.0 VDC........................................................................................................................-40 C to +70 C (-40 F to +158 F) Storage Temperature Range............................................................................................................................................-55 C to +125 C (-67 F to +257 F) Vibration ..............................................................................................................................................................................................................................15 G Shock ..................................................................................................................................................................................................................................50 G Humidity ......................................................................................................................................................................MIL-STD-202, Method 103, Condition B Flammability ............................................................................................................................................................................................Conforms to UL 94HB IP Rating ............................................................................................................................................................................................................................IP 54*
Mechanical Characteristics
Mechanical Angle ............................................................................................................................................................................................360 Continuous Torque Starting/Running ................................................................................................................................................................1.06 N-cm (1.5 oz.-in.) maximum Detent ........................................................................................................................................................................................1.2 N-cm (1.7 oz.-in.) typical Rotational Life Non-detent (@ 30 RPM)..........................................................................................................................................1,000,000 cycles (2,000,000 revolutions) With detent (@ 30 RPM) ..............................................................................................................................................100,000 cycles (200,000 revolutions) Switch Life ..........................................................................................................................................................................................................100,000 cycles Switch Actuation Force Standard ..........................................................................................................................................................................................250 gm (8.82 oz.) typical High Force ....................................................................................................................................................................................850 gm (29.98 oz.) typical Switch Travel ........................................................................................................................................................................................................0.04 in. typical Shaft Radial Play ..........................................................................................................................................................................................0.005 in. maximum Shaft Axial Structural Strength..........................................................................................................................................................................35 lbs. minimum Mounting Torque ..........................................................................................................................................................................2.0 N-m (18 lb.-in.) maximum
Materials and Finishes
Terminals ........................................................................................................................................................................................................Sn plated PC pins 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 Mounting Hardware Nut ..............................................................................................................................Black annodized brass, hex (metric)/Nickel-plated brass, hex (SAE) Lockwasher ............................................................................................................................................................Nickel-plated spring steel, internal tooth Marking ..................................................................................................Manufacturer's symbol, model number, product code, terminal style and date code Standard Packaging ..........................................................................................................................................................Antistatic plastic tube (25 pcs./tube) *When device is mounted by normal mounting means.
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
EM14 - 14 mm Rotary Optical Encoder w/Switch
Part Numbering System
EM14A0D-C24
-
L032S
MODEL NO. DESIGNATOR EM14 14 mm Rotary Optical Encoder BUSHING DESIGNATOR Description 3/8 " D x 3/8 " L Threaded 1/4 " D x 1/4 " L Threaded 10 mm D x 9.5 mm L Threaded DETENT OPTION Code Description 0 No Detent 1 32 Detents (Available for 8 or 32 PPR only) ANTI-ROTATION LUG/BRACKET OPTION Code Description A A/R Lug B Bracket (No hardware/no cable or connector) D None
Code S H N
SWITCH OPTION Description Push Switch (Standard) Push Switch (High Force) No Switch
Code A C R
RESOLUTION (Pulses Per Revolution) Code Description 08 8 PPR 16 16 PPR 32 32 PPR 64 64 PPR
SHAFT STYLE (See Outline Drawing for Details) Code B C E R M Description 1/4 " Dia. Slotted End 1/4 " Dia. Flatted End 1/8 " Dia. Slotted End 6 mm Dia. Slotted End 6 mm Dia. Flatted End Available w/ Bushing A A C R R
CABLE/CONNECTOR OPTION Code Description 0 No Cable/Connector 1 6 " Cable with Female Connector (0.050 "/1.27 mm pitch centers in-line) and stripped/tinned leads 2 6 " Cable with Female Connector (0.050 "/1.27 mm pitch centers in-line) on both ends 3 12 " Cable with Female Connector (0.050 "/1.27 mm pitch centers in-line) and stripped/tinned leads 4 12 " Cable with Female Connector (0.050 "/1.27 mm pitch centers in-line) on both ends
Code 24 28 20 25
SHAFT LENGTH DESIGNATOR Length (FMS) Available w/Bushing 3/4 " A, C 7/8 " A, C 20 mm R, U 25 mm R, U
TERMINAL CONFIGURATION Code Description L Axial Multi-Purpose Pin R Radial Multi-Purpose Pin
Cable and Connector Options: H-190-4 = 6 " Cable with Female Connector (0.050 "/1.27 mm pitch centers in-line) and stripped/tinned leads H-190-1 = 6 " Cable with Female Connector (0.050 "/1.27 mm pitch centers in-line) on both ends H-190-2 = 12 " Cable with Female Connector (0.050 "/1.27 mm pitch centers in-line) and stripped/tinned leads H-190-3 = 12 " Cable with Female Connector (0.050 "/1.27 mm pitch centers in-line) on both ends For other cable and connector options, please contact the factory.
Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
EM14 - 14 mm Rotary Optical Encoder w/Switch
Product Dimensions
MOUNTING SURFACE 14.25 (0.561) F 4.76 (.187) DIA. 0.457 0.026 (.018 .001) 8.00 (.315) METAL SHAFT (SEE TABLE FOR OPTIONS) 2.08 TYP. (.082) "R" PIN STYLE 1.52 (.060) "R" PIN STYLE TYP. TYP. 1.75 (.069) "L" PIN STYLE L 9.53 (.375) 10.03 (.395)
3.18 TYP. (.125) "L" PIN STYLE
14.76 (.581)
R
1.19 .79 X HIGH (.047) (.031) ANTI-ROTATION BOSS (OPTIONAL)
METAL BUSHING (SEE TABLE FOR OPTIONS)
Shaft / Flat Length Dimensions
"A" Style Bushing - Flatted Shafts
L F 9.53 (.375) F
"R" Style Bushing - Flatted Shafts
L 9.5 (.374)
"C" Style Bushing - Slotted Shafts
1.52 (.060) L 6.35 (.250)
4.76 (.187) SHAFT DIA. 6.35 (.250) BUSHING DIA. 9.52 (.375)
4.42 (.174) 3/8-32 UNEF-2A SHAFT LENGTH FLAT LENGTH "L" "F" 19.05 7.94 (.750) (.313) 22.22 9.52 (.875) (.375) SHAFT DIA. 6.0 (.236) M10 x 0.75-6 g BUSHING DIA. 10.0 (.394) SHAFT LENGTH FLAT LENGTH "L" "F" 20.0 7.0 (.787) (.275) 25.0 12.0 (.984) (.472)
0.79 (.031)
1/4-32 UNEF-2A
SHAFT DIA. 6.35 (.250)
BUSHING DIA. 9.52 (.375)
SHAFT LENGTH "L" 19.05 (.750) 22.22 (.875)
"A" Style Bushing - Slotted Shafts
L 1.8 (.071) 9.53 (.375)
"R" Style Bushing - Slotted Shafts
L 1.8 (.071) 9.5 (.374)
0.99 (.040) SHAFT DIA. 6.35 (.250)
0.99 (.040) 3/8-32 UNEF-2A BUSHING DIA. 9.52 (.375) SHAFT LENGTH "L" 19.05 (.750) 22.22 (.875) SHAFT DIA. 6.0 (.236)
M10 x 0.75-6 g BUSHING DIA. 10.0 (.394) SHAFT LENGTH "L" 20.0 (.787) 25.0 (.984)
Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
EM14 - 14 mm Rotary Optical Encoder w/Switch
Cable/Connector Options
Cable Assembly, Connector on One End
STRIPPED AND TINNED 100 % MATTE TIN
123456
CONNECTOR x PIN 1 - RED STRIPE REF. 8.0 (.315)
6.0 1.0 x (.236) (.039)
RIBBON CABLE 6x28 AWG x 1.27 PITCH (.050)
1.27 PITCH RECEPTACLE (.050) .457 FOR (.018) DIA. PINS
HARDWARE DESCRIPTION NUMBER H-190-4 CABLE ASSEMBLY, CONNECTOR ON ONE END CABLE ASSEMBLY, CONNECTOR ON ONE END CABLE ASSEMBLY, CONNECTOR ON BOTH ENDS CABLE ASSEMBLY, CONNECTOR ON BOTH ENDS
"A" DIM.
152.4 5.0 (6.0 .197)
2.54 (.100) A
REF.
3.98 (.157)
REF. 2.7 (.106)
H-190-2
304.8 5.0 (12.0 .197)
H-190-1 Cable Assembly, Connector on Both Ends
RIBBON CABLE 6x28 AWG x 1.27 PITCH (.050)
123456
2 x CONNECTOR x PIN 1 - RED STRIPE
6.0 1.0 x (.236) (.039)
152.4 5.0 (6.0 .197)
1.27 PITCH RECEPTACLE (.050) .457 FOR (.018) DIA. PINS
H-190-3
304.8 5.0 (12.0 .197)
A
Terminal Configurations
Radial
14.99 .13 (.590 .005)
Recommended PCB Layout
DIA. 1.73 .10 (.068 .004) 2 PLCS. DIA. .64 6 PLCS. (.025) GROUND CHANNEL "A" MOMENTARY SWITCH CHANNEL "B" POWER
15.76 .25 (.581 .010)
15.16 .25 (.597 .010)
2.62 .38 (.103 .015)
17.17 REF. (.676)
1.60 (.063) REF. PCB THICKNESS
7.87 .08 (.310 .003) 1.27 .13 (.050 .005) 5 PLCS.
1.5 WIDE (.059) 0.381 X THICK (.015)
7.87 (.310) REF.
1.24 (.049)
Axial
14.99 .25 (.590 .010)
Recommended PCB Layout
14.61 (.575) DIA. 1.73 .10 (.068 .004) 2 PLCS. 6.25 .08 (.246 .003) 1.27 .13 (.050 .005) 5 PLCS.
1.22 (.048) 10.57 (.416)
REF. 6.25 (.246)
GROUND CHANNEL "A" MOMENTARY SWITCH
CHANNEL "B" POWER
DIA. .64 (.025) 6 PLCS.
2.49 .38 (.098 .015)
17.17 (.676)
1.60 (.063) REF. PCB THICKNESS
Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
EM14 - 14 mm Rotary Optical Encoder w/Switch
Electrical Block Diagram Quadrature Output
CW
-
Ground
High CHANNEL A Low High CHANNEL B Low
90 e 45 e
A
IRED
Channel A
1
10k Opto ASIC 10k
Switch Terminal
180 e 1 pulse width
32 DETENT / 8 PPR
2
Switch Terminal
CW
+
Power
CHANNEL A CHANNEL B
B
Channel B
32 DETENT / 32 PPR Terminal Diagram
CW
CHANNEL A CHANNEL B
CHANNEL "A" GROUND CHANNEL "B"
A12 +B
TYP. 1.27 (.050)
POWER MOMENTARY SWITCH
Sensors & Controls
Asia-Pacific: TEL +886-2 25624117 FAX +886-2 25624116 Europe: TEL +41-41 7685555 FAX +41-41 7685510 The Americas: TEL +1-951 781-5500 FAX +1-951 781-5700
www.bourns.com
REV. 08/07 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.

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