ENA1J-B28-L00128L Bourns Inc., ENA1J-B28-L00128L Datasheet

ENCODER OPTICAL ROTARY 128 CPR

ENA1J-B28-L00128L

Manufacturer Part Number
ENA1J-B28-L00128L
Description
ENCODER OPTICAL ROTARY 128 CPR
Manufacturer
Bourns Inc.
Series
ENr
Datasheet

Specifications of ENA1J-B28-L00128L

Pulses Per Revolution
128
Termination Style
PC Pin
Encoder Type
Optical
Output Type
Quadrature (Incremental)
Voltage - Supply
5VDC
Actuator Type
1/4" Dia Round End
Detent
No
Built In Switch
No
Mounting Type
Panel, PCB Through Hole
Orientation
Vertical
Rotational Life (cycles Min)
10M
Number Of Channels
2
Mounting Style
Through Hole
Output
2 bit Gray Code
Shaft Type
1/4 in Diameter Plain
With Switch
With
Supply Voltage
5 V
Operating Temperature Range
- 40 C to + 75 C
Product
Optical
Technology
Rotary
No. Of Channels
2
Rotational Speed Max
3000rpm
Sensor Supply Voltage
4.75VDC To 5.25VDC
Rotational Life Cycles
10000000
Torque Max
1.5in-oz
Encoder Output
Square Wave Digital Pulse
Rohs Compliant
Yes
Encoder Resolution
128CPR
Leaded Process Compatible
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
ENA1JB28L00128L
ENA1JB28L00128L
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
Output Current
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.
Index Channel Centered on 1-1 State Combination of A and B Channels ...............................................................................................................0 º ±45 º
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
IP Rating ..........................................................................................................................................................................................................................IP 40
Mechanical Angle ........................................................................................................................................................................................360 ° Continuous
Torque (Starting and Running)
Mounting Torque .................................................................................................................................................1.7 to 2.0 N-cm (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
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.
Electrical Characteristics
Environmental Characteristics
Mechanical Characteristics
Quadrature Output Table
Low Output .................................................................................................................................................................................................0.8 V maximum
High Output ....................................................................................................................................................................................................4 V minimum
Low Output ................................................................................................................................................................................................25 mA minimum
A & C Bushings (300 rpm maximum)** ........................................................................................................................................... 10,000,000 revolutions
W, S & T Bushings (3,000 rpm maximum)** ................................................................................................................................. 200,000,000 revolutions
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
Manual Soldering .................................................................................................................. 96.5Sn/3.0Ag/0.5Cu solid wire or no-clean rosin cored wire
Wave Soldering...........................................................................................................................................96.5Sn/3.0Ag/0.5Cu solder with no-clean fl ux
Wash processes ....................................................................................................................................................................................Not recommended
Channel A
Channel B
(Optional)
Channel
Index
OUTPUT VOLTAGE
4.0 V (Min)
0.8 V (Max)
4.0 V (Min)
0.8 V (Max)
4.0 V (Min)
0.8 V (Max)
1 cycle
360 ° ± 90 °
Features
EN - Rotary Optical Encoder
Two channel quadrature output
Bushing or servo mount
Square wave signal
Index channel available
Small size
Resolution to 256 PPR
Clockwise rotation
1
0
1
0
1
0
Customers should verify actual device performance in their specifi c applications.
STANDARD RESOLUTIONS AVAILABLE
(Full quadrature output cycles per shaft revolution)
For Non-Standard Resolutions—Consult Factory
* Channel B leads Channel A
100
25*
50*
64
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
125
128
200
256
Specifi cations are subject to change without notice.
370 °C (700 °F) max. for 3 seconds
260 °C (500 °F) max. for 5 seconds

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ENA1J-B28-L00128L Summary of contents

Page 1

Electrical Characteristics Output .................................................................................2-bit quadrature code, Channel A leads Channel 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 ...

Page 2

Additional Features ■ CMOS and TTL compatible ■ Long life ■ Ball bearing option for high operating speed up to 3000 rpm EN - Rotary Optical Encoder Dimensional Drawings Optional 18.5 Radial Leads 2.54 (.73) TYP. .635 (.100) SQ. (.025) ...

Page 3

... EN optical encoders offer a useful rotational life of from 10 million to 200 million shaft revolutions, making them ideal for extended service applications. The Bourns encoder is also compact and well suited for situations where the available space is limited ...

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