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 maximum
Power Dissipation..........................................................................................................................................................................................167 mW maximum
Operating RPM .................................................................................................................................................................................................... 120 maximum
Switch Power Rating ..............................................................................................................................................12 VDC / 20 mA (600 ohms minimum 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 ºC to +125 ºC (-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**
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
Standard ..........................................................................................................................................................................................................0.04 in. typical
High Force .....................................................................................................................................................................................................0.025 in. typical
Shaft Radial Play .......................................................................................................................................................................................... 0.005 in. maximum
Mounting Torque...........................................................................................................................................................................2.0 N-m (18 lb.-in.) maximum
Materials and Finishes
Terminals ........................................................................................................................................................................................................Sn plated PC pins
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
Lockwasher ............................................................................................................................................................ Nickel-plated spring steel, internal tooth
Marking.................................................................................................... Manufacturer’s symbol, model number, product code, terminal style and date code
Standard Packaging ......................................................................................................................................................... Anti-static plastic tube (25 pcs./tube)
**When device is mounted by normal mounting means.
*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.
Additional Features
■
Splashproof shaft seal
■
Recommended for human/machine interface applications (HMI)
■
Cable/connector option
■
Optional bracket
EM14 - 14 mm Rotary Optical Encoder w/Switch
Part Numbering System
E M 1 4 A 0 D - C 2 4
-
L 0 3 2 S
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
SWITCH OPTION
Code Description
S
Push Switch (Standard)
H
Push Switch (High Force)
N
No Switch
RESOLUTION (Pulses Per Revolution)
Code Description
08
8 PPR
16
16 PPR
32
32 PPR
64
64 PPR
Code
A
C
R
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
No Cable/Connector
0
1
6 ” Cable with Female Connector
(0.050 ”/1.27 mm pitch centers in-line)
and stripped/tinned leads
6 ” Cable with Female Connector
2
(0.050 ”/1.27 mm pitch centers in-line)
on both ends
12 ” Cable with Female Connector
3
(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-290-4 = 6 ” Cable with Female Connector (0.050 ”/1.27 mm pitch centers in-line) and stripped/tinned leads
H-290-1 = 6 ” Cable with Female Connector (0.050 ”/1.27 mm pitch centers in-line) on both ends
H-290-2 = 12 ” Cable with Female Connector (0.050 ”/1.27 mm pitch centers in-line) and stripped/tinned leads
H-290-3 = 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.
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.
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)
1.19
.79
X
HIGH
R
(.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.
3.17
(.125)
BUSHING
DIA.
6.35
(.250)
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)
DIMENSIONS:
MM
(INCHES)
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.
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.
EM14
2
mm Rotary Optical Encoder w/Switch
3312
- 14
mm SMD Trimming Potentiometer
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-290-4
CABLE ASSEMBLY,
CONNECTOR
ON ONE END
CABLE ASSEMBLY,
CONNECTOR
ON ONE END
CABLE ASSEMBLY,
CONNECTOR
ON BOTH ENDS
CABLE ASSEMBLY,
CONNECTOR
ON BOTH ENDS
DIMENSIONS:
MM
(INCHES)
“A” DIM.
152.4 ± 5.0
(6.0 ± .197)
2.54
(.100)
A
REF.
3.98
(.157)
REF.
2.7
(.106)
H-290-2
304.8 ± 5.0
(12.0 ± .197)
H-290-1
Cable Assembly, Connector on Both Ends
RIBBON CABLE
6x28 AWG x 1.27 PITCH
(.050)
123456
PIN 1 - RED STRIPE
6.0
1.0
2 x CONNECTOR
x
(.236) (.039)
1.27
x
PITCH RECEPTACLE
(.050)
.457
FOR (.018) DIA. PINS
152.4 ± 5.0
(6.0 ± .197)
H-290-3
304.8 ± 5.0
(12.0 ± .197)
A
Terminal Configurations
Radial (shown with optional mounting bracket)
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
14.76 ± .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 (shown with optional mounting bracket)
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.
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.
EM14
2
mm Rotary Optical Encoder w/Switch
3312
- 14
mm SMD Trimming Potentiometer
Electrical Block Diagram
–
Ground
High
CHANNEL A
Quadrature Output
CW
90 °e ± 45 °e
Low
High
CHANNEL B
Low
180 °e
1 pulse width
A
IRED
Channel A
1
10k
Opto
ASIC
Switch Terminal
32 DETENT / 8 PPR
10k
CW
2
Switch Terminal
CHANNEL A
+
Power
CHANNEL B
B
Channel B
32 DETENT / 32 PPR
Terminal Diagram
CW
High
CHANNEL A
CHANNEL B
Low
High
Low
CHANNEL "A"
GROUND
CHANNEL "B"
Detent Range
Nominal Detent
Position
A12 +B
1. Nominal detent position occurs when both Channel A and B are in
low states.
2. Channel A leads Channel B in CW direction and lags in CCW
direction.
TYP. 1.27
(.050)
POWER
MOMENTARY SWITCH
Asia-Pacific:
Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
Europe:
Tel: +36 88 520 390 • Fax: +36 88 520 211
The Americas:
Tel: +1-951 781-5500 • Fax: +1-951 781-5700
www.bourns.com
REV. 10/13
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.
