Rotary Encoders

Rotary Encoders are devices that convert a motion into an analogue or digital signal. These devices are electro-mechanical sensors that monitor the position of the shaft or axle and convert it into the signal readable for digital devices. Rotary Encoders are also known as shaft encoders.
Rotary Encoders can be divided into 2 main types:
· Absolute – Digital Absolute encoders produce a unique digital code for each angle of shaft. These type of encoders maintains position information when a system power is off. The position of encoder is available again on applying power. The relationship between the encoder value and the physical position of the controlled machinery is set at assembly, the system does not need to return to a calibration point to maintain position accuracy.
Types of absolute encoders:
o Mechanical
o Optical
o Magnetic
o Capacitive
· Incremental – These encoders accurately records the changes in position of the shaft but does not power up with fixed relation between encoder state and physical position. The point where the counting begins depends on the external device counting system and not the position of the encoder. To provide useful position information, the encoder position must be referenced to the device to which is attached.
Rotary Encoders are commonly used in many applications that require precise shaft unlimited rotation. It means they can be used across industries such as robotics industry, electronic industry, and machinery production but are also very popular parts of many household devices.

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Description Price Pulses Per Revolution Encoder Technology Maximum Revolutions Output Signal Type Shaft Type Shaft Diameter Supply Voltage Resolution Steps Per Revolution IP Rating Interface Overall Height Overall Width Overall Depth
RS Stock No. 796-7862
Mfr. Part No.HEDS-9000#T00
BrandBroadcom
TWD648.00
Each
units
- Incremental - Push Pull - - 4.5 → 5.5 V dc 2000 CPR - - - 10.16mm 26.67mm 11.71mm
RS Stock No. 712-5412
Mfr. Part No.DFS60B-S1PA10000
BrandSick
TWD17,600.00
Each
units
10000 Incremental - HTL, TTL Solid 6mm 5 → 32 V dc - - IP65, IP67 - 40.1mm - -
RS Stock No. 167-0119
Mfr. Part No.ENT1J-D28-L00128L
BrandBourns
TWD1,983.20
Each (In a Tray of 42)
units
128 Optical 3000rpm Push Pull Solid 1/4in 5 V dc 2 Bit - IP40 - - 22.2 Dia.mm 23.37mm
RS Stock No. 265-1717
Mfr. Part No.EC11B152040G
TWD150.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 822-6395
Mfr. Part No.E6C3-AG5B 360P/R 2M
BrandOmron
TWD18,968.00
Each
units
360 Absolute 5000rpm PNP Open Collector Solid 8mm 12 → 24 V dc 360 ppr - IP65 - 58mm 50 Dia.mm -
RS Stock No. 909-3326
Mfr. Part No.RO3500
TWD6,179.00
Each
units
- Incremental 12000rpm HTL, TTL Hollow 12mm 4.5 → 30 V dc 10000 I/U - IP64 IO-Link - 58.5 Dia.mm 68.6mm
RS Stock No. 701-4277
Mfr. Part No.DPL12H2424A20FR
TWD161.00
Each
units
24 Incremental 60rpm Quadrature Solid 6mm 5 V dc - - - - 27.4mm 13.2mm 12.4mm
RS Stock No. 178-3225
Mfr. Part No.AEDR-8000-1K2
BrandBroadcom
TWD331.50
Each (On a Reel of 100)
units
- - - - - - - - - - - - - -
RS Stock No. 260-0781
Mfr. Part No.40A20ABNG24K2
TWD5,107.00
Each
units
20 Incremental 12000rpm HTL Solid - 10 → 30 V dc - - IP65, IP67 - 55mm - -
RS Stock No. 796-7846
Mfr. Part No.HEDS-5500#A11
BrandBroadcom
TWD1,531.00
Each
units
500 Incremental 30000rpm Push Pull - - -0.5 → 7 V dc 500 CPR - - - 18.3mm 41.1mm 30mm
RS Stock No. 252-3921
Mfr. Part No.EC11B152040G
TWD162.00
Each (In a Pack of 5)
units
15 Incremental - - Solid 6mm 5 Vdc - - - - 31.6mm 13.75mm 11.7mm
RS Stock No. 922-6866
Mfr. Part No.HEDS-5500#A11
BrandBroadcom
TWD1,340.70
Each (In a Tray of 25)
units
- Incremental 30000rpm Push Pull - - -0.5 → 7 V dc 500 CPR - - - 18.3mm 41.1mm 30mm
RS Stock No. 178-2945
Mfr. Part No.AEAT-6600-T16
BrandBroadcom
TWD184.00
Each (In a Tube of 970)
units
- Incremental 30000rpm Push Pull - - -0.3 → 7 V dc 16 Bit - - - 0.9mm 5mm 4.4mm
RS Stock No. 178-3105
Mfr. Part No.HEDL-5640#A13
BrandBroadcom
TWD1,518.30
Each (In a Tray of 20)
units
500 Incremental 30000rpm Push Pull Hollow 8mm 4.5 → 5.5 V dc 500 CPR 500Steps - - 18.3mm 41.1mm 30mm
RS Stock No. 492-9157
Mfr. Part No.ARS60-A4A08192
BrandSick
TWD30,600.00
Each
units
8192 Absolute 10000rpm Gray, SSI Solid 10mm 10 → 32 V dc - 8192Steps IP64, IP65, IP66 - 78.5mm - -
RS Stock No. 744-5312
Mfr. Part No.E6B2-CWZ6C 1000P/R 2M BY OMS
BrandOmron
TWD4,970.00
Each
units
1000 Incremental 6000rpm NPN Open Collector Solid 6mm 5 → 24 V dc - - IP50 - 59mm - -
RS Stock No. 744-5321
Mfr. Part No.E6B2CWZ6C100PR2M
BrandOmron
TWD4,570.00
Each
units
100 Incremental 6000rpm NPN Open Collector Solid 6mm 5 → 24 V dc - - IP50 - 59mm - -
RS Stock No. 692-8626
Mfr. Part No.ENC1J-D28-L00128L
BrandBourns
TWD1,437.00
Each
units
128 Optical 3000rpm Quadrature End - 5 V dc 2 bit - IP40 - 47.05mm 21.21mm 15.88mm
RS Stock No. 820-3705
Mfr. Part No.EIL580-SC10.5BN.01024.A
BrandBaumer
TWD6,957.00
Each
units
1024 Incremental 12000rpm HTL, Push Pull Solid 10mm 8 → 30 V dc - - IP65 - 89.8mm 58mm -
RS Stock No. 260-0860
Mfr. Part No.40A1250ABNG24K2
TWD5,890.00
Each
units
1250 Incremental 12000rpm HTL Solid - 10 → 30 V dc - - IP65, IP67 - 55mm - -