- 50 to 5,000 Cycles Per Revolution (CPR)
- Tracks 0 to 300,000 Cycles Per Second
- 2-Channel Quadrature TTL Squarewave Outputs
- Third Index Channel
- Operating Temperature of -40° to +100° C
- Powered From a Single +5VDC Power Supply
- Latching Connector
- Allows for ± .010" Axial Shaft Play
- RoHS Compliant and REACH Certified
![Optical Incremental Rotary - ENC-A5SI with Index Optical Incremental Rotary - ENC-A5SI with Index](/images/encoder/ENC-A5SN Photo.png)
The ENC-A5SI is a single-ended, transmissive optical encoder module designed to detect the rotary position
with a code wheel. The ENC-A5SI requires a minimum shaft length of .445" and maximum length of .570", and can be attached to the end of any shaft size ranging from .079" to .394" in diameter to provide digital feedback
information. This single-ended encoder consists of a LED source lens and a monolithic detector IC
enclosed in a small polymer package. These modules implement phased array detector technology
providing superior performance and tolerances over traditional aperture mask type encoders. The ENC-A5SI
series provides digital quadrature squarewave outputs on all resolutions and are capable of sinking or
sourcing 8 mA each. These encoders are powered from a single +5VDC power supply and are RoHS
compliant and REACH certified.
*Select a part number from the chart below or build your own part number using the Ordering Information tab at the bottom of the page. Cables and Centering Tools are also available. For instructions on installing your encoder to a motor, view our step by step video tutorial here.
Item | Cycles Per Rev (CPR) |
Bore Size |
Index Channel |
Cover | Base | Price (USD) |
$AVE Quantity Discounts |
Stock Status | Add To Cart | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ENC-A5SI-1000-250-H-G | 1000 | 250 | Yes | H | G | $68.00 |
view here
|
Typ. 10 Days |
![]() |
||||||||||||||
ENC-A5SI-1024-250-H-G | 1024 | 250 | Yes | H | G | $68.00 |
view here
|
Typ. 10 Days | Contact Us | ||||||||||||||
ENC-A5SI-1250-197-H | 1250 | 197 | Yes | H | $68.00 |
view here
|
Typ. 10 Days |
![]() |
We can mount your encoder to any compatible dual-shaft Anaheim Automation motor for you! Please see SI5 Series Encoder Adders to learn more, or Contact Us for assistance.
>
- Ordering Information
- Dimensions
- Pin Assignment
- A5 Base Options
- A5 Cover Options
- Accessories
![Optical Incremental Rotary - ENC-A5SI Ordering Information Optical Incremental Rotary - ENC-A5SI Ordering Information](/images/encoder/ordering/A5SI Ordering Info (900x532).png)
![Optical Incremental Rotary - ENC-A5SI Dimensions Optical Incremental Rotary - ENC-A5SI Dimensions](/images/encoder/dimension/ENC-A5S Series Dimension New (900x552).png)
![Optical Incremental Rotary - ENC-A5SI Pin Assignment Optical Incremental Rotary - ENC-A5SI Pin Assignment](/images/encoder/wiring/ENC-A5S wiring (300x197).png)
![](/images/encoder/dimension/A5S Encoder Base Options New (900x557).png)
![](/images/encoder/dimension/ENC-A5S Series Cover Options New (900x351).png)
![](/images/encoder/accessories/A5SI Accessories.png)
![Optical Incremental Rotary - ENC-A5SI Ordering Information Optical Incremental Rotary - ENC-A5SI Ordering Information](/images/encoder/ordering/A5SI Ordering Info (900x532).png)
![Optical Incremental Rotary - ENC-A5SI Dimensions Optical Incremental Rotary - ENC-A5SI Dimensions](/images/encoder/dimension/ENC-A5S Series Dimension New (900x552).png)
![Optical Incremental Rotary - ENC-A5SI Pin Assignment Optical Incremental Rotary - ENC-A5SI Pin Assignment](/images/encoder/wiring/ENC-A5S wiring (300x197).png)
![](/images/encoder/dimension/A5S Encoder Base Options New (900x557).png)
![](/images/encoder/dimension/ENC-A5S Series Cover Options New (900x351).png)
![](/images/encoder/accessories/A5SI Accessories.png)