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. 796-7806
Mfr. Part No.AEDB-9140-A13
BrandBroadcom
$45.24
Each
units
500 Incremental - Push Pull - - -0.5 → 7 V dc 500 CPR - - - 13.6mm 21.6mm 9.74mm
RS Stock No. 178-3258
Mfr. Part No.AEDB-9140-A13
BrandBroadcom
$39.23
Each (In a Bag of 100)
units
- - - - - - - - - - - - - -
RS Stock No. 714-0237
Mfr. Part No.AEAT-601B-F06
BrandBroadcom
$41.80
Each
units
256 Incremental 12000rpm Quadrature - - 4.5 → 5.5 V dc - - - - - - -
RS Stock No. 178-3257
Mfr. Part No.AEAT-601B-F06
BrandBroadcom
$35.18
Each (In a Box of 80)
units
- - - - - - - - - - - - - -
RS Stock No. 205-6881
Mfr. Part No.HEDS-5540#A06
BrandBroadcom
$79.22
Each
units
500 Incremental 30000rpm Quadrature Hollow 1/4in 4.5 → 5.5 V dc - - - - 41.1mm 30mm 18.3mm
New
RS Stock No. 189-4801
Mfr. Part No.HEDS-5540#A06
BrandBroadcom
$64.077
Each (In a Tube of 50)
units
500 Optical 30000rpm Digital - 1/4in -0.5 → 7 V 500 CPR - - - 41.1mm 30mm 18.3mm
RS Stock No. 178-3118
Mfr. Part No.HEDS-5605#E06
BrandBroadcom
$57.99
Each (In a Tray of 25)
units
- - - - - - - - - - - - - -
RS Stock No. 796-7865
Mfr. Part No.HEDS-5605#E06
BrandBroadcom
$62.37
Each
units
- Incremental 30000rpm Push Pull - - -0.5 → 7 V dc 200 CPR - - - 18.3mm 41.1mm 30mm
RS Stock No. 205-6869
Mfr. Part No.HEDS-5500#A06
BrandBroadcom
$68.89
Each
units
500 Incremental 30000rpm Quadrature Hollow 1/4in 4.5 → 5.5 V dc - - - - 41.1mm 30mm 18.3mm
New
RS Stock No. 189-4800
Mfr. Part No.HEDS-5500#A06
BrandBroadcom
$64.077
Each (In a Tube of 50)
units
500 Optical 30000rpm Digital - 1/4in -0.5 → 7 V 500 CPR - - - 41.1mm 30mm 18.3mm
RS Stock No. 178-3105
Mfr. Part No.HEDL-5640#A13
BrandBroadcom
$65.68
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. 818-8833
Mfr. Part No.HEDL-5640#A13
BrandBroadcom
$69.62
Each
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. 796-7874
Mfr. Part No.HEDS-9040#J00
BrandBroadcom
$41.93
Each
units
- Incremental 30000rpm Push Pull - - 4.5 → 5.5 V dc 1024 CPR - - - 10.16mm 26.67mm 11.71mm
RS Stock No. 178-3262
Mfr. Part No.HEDS-9040#J00
BrandBroadcom
$39.02
Each (In a Bag of 100)
units
- - - - - - - - - - - - - -
RS Stock No. 796-7871
Mfr. Part No.HEDS-9040#B00
BrandBroadcom
$37.02
Each
units
- Incremental 30000rpm Push Pull - - 4.5 → 5.5 V dc 1000 CPR - - - 10.16mm 26.67mm 11.71mm
RS Stock No. 796-7878
Mfr. Part No.HEDS-9100#A00
BrandBroadcom
$35.39
Each
units
- Incremental - Push Pull - - 4.5 → 5.5 V dc 500 CPR - - - 10.16mm 26.67mm 11.71mm
RS Stock No. 178-3261
Mfr. Part No.HEDS-9040#B00
BrandBroadcom
$28.97
Each (In a Bag of 100)
units
- - - - - - - - - - - - - -
RS Stock No. 178-3263
Mfr. Part No.HEDS-9100#A00
BrandBroadcom
$28.31
Each (In a Bag of 100)
units
- - - - - - - - - - - - - -
RS Stock No. 796-7815
Mfr. Part No.AEDB-9140-A14
BrandBroadcom
$44.79
Each
units
- Incremental - Push Pull - - -0.5 → 7 V dc 500 CPR - - - 13.6mm 21.6mm 9.74mm
RS Stock No. 178-3103
Mfr. Part No.HEDL-5540#A11
BrandBroadcom
$65.68
Each (In a Tray of 20)
units
500 Incremental 30000rpm Push Pull Hollow 4mm 4.5 → 5.5 V dc 500 CPR 500Steps - - 18.3mm 41.1mm 30mm