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Customized DC-DC Converters Explore DC-DC ConvertersThe RS972 Series is a high-performance optical encoder module designed for precise motion control applications.
Photo-detector Array
-40°C to +85°C Operating Temperature
Multiple CPR / LPI options
C-Shape Structure, Easy to Mount
TTL Compatible
3.3V to 5V Supply
The RS972 series is a high-performance optical 2-channel incremental encoder module that integrates a precision encoder phase matrix receiver chip and infrared light source.
The module works in conjunction with a code disk to sense rotational position and speed information.
RS972 series has linear ( LPI ) options: 20, 45, 90, 150, 180, 300, 360.
Typical applications include printers, plotters, servo motors, factory automation etc.
Safety Notice: Not recommended for use in safety critical application. Eg.ABS braking system.
Parameter | Symbol | Range |
Storage Temperature | Ts | -40°C to +85°C |
Operating Temperature | TA | -40°C to +85°C |
Supply Voltage | Vcc | -0.5V to 7V |
Soldering Temperature | - | ≤260°C ( t ≤ 5s ) |
Response Frequency | f | 60 KHz |
Reverse Voltage | Vr | 5V |
Parameter | Symbol | Range |
Operating Temperature | T | -40°C to +85°C |
Power Supply | Vcc Ripple voltage <100mV | 2.7V ~ 5.5V |
Electrical Characteristics Under Recommended Operating Range, Typical at 25 ⁰C
Parameter | Symbol | Min. | Typ. | Max. | Units | Condition |
| Light Source Forward Voltage | Vf | 1.4 | - | 1.9 | V | If=20mA |
Light Source Wavelength | λp | 840 | - | 860 | nm | - |
Receiver Chip Operating Current | ICC | - | 2 | 3 | mA | - |
Low Level Output Voltage | VOL | - | 0.2 | 0.4 | V | - |
High Level Output Voltage | VOH | Vcc*0.8 | Vcc | - | V | - |
A/B Rising Edge Time | tr | - | 300 | - | ns | - |
A/B Falling Edge Time | tf | - | 20 | - | ns | - |
AB Duty Cycle | Dt | 40 | 50 | 60 | % | - |
| A/B Phase Difference | θ | 60 | 90 | 120 | ⁰e | - |
Pin Definition
Pin Name | Function | Input / Output |
Vcc | Power Supply + 5V | Power Supply |
CH A | A Channel output | Output |
CH B | B Channel output | Output |
Gnd | Ground | Ground |
RS972 series is available in a variety of options, and the specific CPR selection is as follows, based on the optical radius (ROP) = 11mm.
RS972 series linear type by LPI options are as follows.
| Item | Description | QTY/Tube | Tubes/Carton | G.W | N.W | QTY/Carton | Package Size |
| RS97 Series | RS97 Series Optical Encoder Modules （With Mounting Holes） | 25 pcs | 60 tubes | 5.78 kgs | 2.4 kgs | 1500 pcs | 620*310*225 (mm) |
| 10 tubes | 1.01 kgs | 0.4 kgs | 250 pcs | 600*48*70 (mm) | |||
RS97 Series Optical Encoder Modules （Without Mounting Holes） | 50 pcs | 60 tubes | 7.88 kgs | 4.5 kgs | 3000 pcs | 620*310*225 (mm) | |
| 10 tubes | 1.36 kgs | 0.75 kgs | 500 pcs | 600*48*70 (mm) |
Material Weight Schedule
| Material | Optical Encoder Module （With Mounting Holes） | Optical Encoder Module （Without Mounting Holes） | Tube | Carton |
| Weight | 1.6g/pc | 1.5g/pc | 45g/pc | 680g/160g |
| QTY/Carton | 1,500pcs /250pcs | 3,000pcs /500pcs | 60 tubes/10 tubes | 1pc |
| Weight/Carton | 2,400g/400g | 4,500g/750g | 2,700g/450g | 680g/160g |
5,780g/1500pcs 1,010g/250pcs | 7,880g/3,000pcs 1,360g/500pcs |
Discover all the technical specifications by downloading the datasheet today.
| Part Number | Interface |
Dimensions
(mm) |
Resolution Ranges | Resolution Counter |
Communication Frequency |
Working Temperature |
Communication Frequency |
Operation Speeds |
Protection Structure |
Footprint 3D | Datasheet | Sample |
| RZ35A08 | RS485 | Φ35mm | 17~23 Bits | Single/Multi-Turn | Differential output | -20°C-+105°C | 16K | 6000rpm | IP40 |  |
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| RZ35A09 | RS485 | Φ35mm | 17~23 Bits | Single/Multi-Turn | Differential output | -20°C-+105°C | 16K | 6000rpm | IP40 | |
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| RZ35D06Q | RS485 | Φ35mm | 17~23 Bits | Single/Multi-Turn | Differential output | -20°C-+105°C | 16K | 6000rpm | IP40 | |
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| RZ35D06S | RS485 | Φ35mm | 17~23 Bits | Single/Multi-Turn | Differential output | -20°C-+105°C | 16K | 6000rpm | IP40 | |
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| RZL4408A | RS485 | Φ44mm | 17~23 Bits | Single/Multi-Turn | Differential output | -20°C-+105°C | 16K | 6000rpm | IP40 | |
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| RZH4409A | RS485 | Φ44mm | 17~23 Bits | Single/Multi-Turn | Differential output | -20°C-+105°C | 16K | 6000rpm | IP40 | |
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| RZL4409A | RS485 | Φ44mm | 17~23 Bits | Single/Multi-Turn | Differential output | -20°C-+105°C | 16K | 6000rpm | IP40 | |
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| RZ4809A | RS485 | Φ48mm | 17~23 Bits | Single/Multi-Turn | Differential output | -20°C-+105°C | 16K | 6000rpm | IP40 | |
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| UZ3509 | RS485 | Φ35mm | 1000-5000CPR | Single/Multi-Turn | Differential output | -20°C-+105°C | 500khz | / | IP40 | |
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| UZ4408 | RS485 | Φ44mm | 1000-5000CPR | Single/Multi-Turn | Differential output | -20°C-+105°C | 500khz | / | IP40 | |
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| UZ4409 | RS485 | Φ44mm | 1000-5000CPR | Single/Multi-Turn | Differential output | -20°C-+105°C | 500khz | / | IP40 | |
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| UZ4809 | RS485 | Φ48mm | 1000-5000CPR | Single/Multi-Turn | Differential output | -20°C-+105°C | 500khz | / | IP40 | |
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| RS972 | / | / | / | / | / | -40°C to +85°C | / | / | / | |
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| RS970 | / | / | / | / | / | -40°C to +85°C | / | / | / | |
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| RK Series | / | / | / | / | / | -20°C to +85°C | / | / | / | |
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Essential for Precision and Reliability in Medical Equipment
Improve Automation and Efficiency in Various Robotic Applications
Improve the Efficiency and Reliability of Automation Systems
Accurate Feedback on Position and Speed
