Encoder 20mm Size Metal Shaft Type EC20A/RK203 Series Heavy torque and comfortable operation feel with compliance to encoder and potentiometer applications. Typical Specifications Detector Specifications Encoder Potentiometer Items Push Rating 1mA 5V DC 0.05W Slide Operating life 30,000cycles Rotary Encoders Product Line Power Encoders Dual-in-line Package Type Detent Length of Number Operating operating section torque section （mm） （mN・m） of detent Flat TACT SwitchTM CustomProducts 30 Number of pulse Operating direction 18 Vertical 18 40±20 Travel of push-on switch （mm） Minimum order unit （pcs.） 1.5 400 Product No. Drawing No. EC20A1824401 1 EC20A1820401 2 Potentiometer Detent Length of Number Operating operating section torque section （mm） （mN・m） of detent Flat 30 Shall be in accordance with individual specifications Rotational angle Operating direction Minimum order unit （pcs.） Product No. Drawing No. 240°max Vertical 400 RK203110 3 Notes 1. For with switch type, only the incremental type is available. 2. All the potentiometer types can be customized. Contact us with the detailed specifications if you have such requirements. Dimensions % #$ ! 12 10 ø20.2 30 8 1.5 1.5 3.5 ø3 15.5 A C B NCNC NC 8.3 C1 M9G0.75 2 9 4.5 2.5 Mounting Surface ø6 3.5 & # $ '' ' G " EC20A without switch type Incremental Type 1 19.2 EC20A with push-on switch （travel 1.5mm） Incremental Type Style Photo No. Absolute Type Unit:mm PC board mounting hole dimensions （Viewd from mounting face） Incremental Type 3-1 (17.8) ¿20.2 30 8 10 12 1.5 15.5 ¿3 1.5 190 9 3-¿1.2holes 1.25 3.75 3-1 (17.8) 2 1 3 10 NC 2 NC 1 NC 3 1.5 3.5 8.3 C1 9 2.5 M9×0.75 3 2.6 18.4 19.2 3.5 Mounting Surface 4.5 ¿6 RK203 without switch type Potentiometer Type 6.25 Encoders List of Varieties Metal shaft Type Insulated shaft 20mm size 11mm size EC11G Series EC11J EC11K EC20A/RK203 12mm size EC12E EC12D Standard detent Without detent With push-on switch Detector Photo Push Output Incremental Outline specifications Shaft types Single-shaft Operating direction Vertical Number of pulse/ Number of detent Push switch （Travel mm） Optional functions Changeover angle Without With （1.5） 18/18 12/12 24/24 15/30 Without With （1.5） Without With （0.5） 2.0 12.4 12.5 19.2 13.2 11.7 11.7 D 12 14.2 H 4.5 10 Manual soldering Soldering Rotary Encoders Power Dual-in-line Package Type W Dimensions （mm） 9/18 15/30 Without With （0.5, 1.5） 15/30 Slide TACT SwitchTM 5 CustomProducts 350℃ max. 3s max. Dip soldering 260±5℃, 5±1s Reflow soldering 260±5℃, 5±1s 260℃±5℃, 3±1s Please see P.189 Operating temperature range –30℃ to ＋85℃ –40℃ to ＋85℃ 10mA Maximum operating current（Resistive load） Output signal –30℃ to ＋80℃ –10℃ to ＋70℃ –40℃ to ＋85℃ 1mA 5mA 10mA Output of A and B signals, proportionate to phase difference A signal OFF Output wave OFF B signal Please see P.191 ON Detent stabillity point （When the switch is provided） Absolute Type V1＝V2＝1.5V max. Test circuit R Output waveform 5V DC t R Terminal A t V1 Terminal B 5V Electrical performance CW direction Incremental Type ON V2 Encoder Please see P.191 Sliding noise ON Terminal C Measurement condition：Rotation speed 360û/s Insulation resistance Voltage proof Mechanical Environmental performance performance Rotational torque Detent torque 7 ＋3 −4 OFF ON Sliding direction t : Masking time to avoid chattering 100MΩ min. 250V DC At R = 10kΩ Chattering : 3ms max. Bounce : 2ms max. 10MΩ min. 50V DC At R = 5kΩ Chattering : 3ms max. Bounce : 2ms max. 100MΩ min. 250V DC 300V AC for 1minute 50V AC for 1minute 300V AC for 1minute or360V AC for 1s. 10mN・m max. 25±15mN・m 40±15mN・m mN・m 10±7mN・m 40±20mN・m 12±5mN・m 3±2mN・m 3 to 20mN・m 5±3mN・m 10±5mN・m Push-pull strength 100N Cold –40±3℃ for 240h Dry heat 85±3℃ for 240h 85±3℃ for 240h±10h Damp heat 60±2℃, 90 to 95% RH for 240h 60±2℃, 90 to 95%RH for 240h±10h Circuit・number of contacts Push-on Switch Specifications Travel（mm） 2.5 Operating force（N） 6 ＋ −2 Rating Contact esistance Operating life Page –40±3℃ for 240h±10h Single pole and single throw（Push-on） 0.5±0.3 1.5±0.5 0.5±0.3 1.5±0.5 0.5±0.3 5±2 4±2 0.5A 16V DC （1mA 16V DC min. ratings） 4±2 5±2 0.1A 5V DC Single pole and single throw（Push-on） 1.5±0.5 0.5±0.3 1.5 3＋ − 1.0 4±2 0.5A 16V DC （1mA 16V DC min. ratings） 100mΩ for initial period; 200mΩ after operating life 1,000,000 500,000 1,000,000 100,000 20,000times min. times times times times min. min. min. min. 181 187 100N 80N 20,000times min. 190 2.5 6＋ − 2 1mA 5V DC 100mΩfor initial period; 200mΩafter operating life 30,000times min. 192 177 11mm and 20mm Size Metal Shaft Encoders Product Specifications Output Wave EC11B EC11E/EC11G/EC11J/EC11K The stable detent position cannot be identified in phase B. EC11E 18 detents 9 pulse EC11E 36 detents 18 pulse EC11J, EC11K EC11B, EC11E, EC11G 30 detents, 15 pulse A signal OFF B signal ON OFF EC111/EC11E ON A signal OFF ON B signal OFF Detent stabillity point Detector CCW CW Push ON Slide CW direction Detent stabillity point CW direction 0˚ B A C Rotary Encoders EC11EH EC20A A signal （ ） OFF ON B signal OFF C signal OFF （ ） ON （ ） ON （ ） Detent position CW direction Power Dual-in-line Package Type TACT SwitchTM CustomProducts Sliding Noise EC11B EC11E/EC11G/EC11J/EC11K EC111/EC11E V1＝V2＝1.5V max. Test circuit Output waveform 5V DC t Terminal A Incremental Type t R V1 Terminal B 5V R Absolute Type V2 Encoder ON ON Sliding direction Terminal C Measurement condition：Rotation speed 360˚/s OFF t : Masking time to avoid chattering At R ＝ 5kΩ Chattering : 3ms max. Bounce : 2ms max. At R ＝ 5kΩ Chattering : 2ms max. Bounce : 2ms max. EC11EH EC20A Test circuit 5V DC R Terminal A R Terminal B V1＝V2＝1.5V max. Test circuit Output waveform 5V DC Terminal C t R t R Terminal A V1 Terminal B 5V R ABC switch V2 Encoder Terminal D ON Measurement condition：Rotation speed 360˚/s At R = 5kΩ Chattering: 5ms max. Bounce : 5ms max. ON Sliding direction Terminal C /s Test condition Rotation speed 360° OFF t : Masking time to avoid chattering At R = 5kΩ Chattering: 8ms max. Bounce : 5ms max. Attached Parts EC11B Series Unit:mm Hexagonal nut 11 2 ¿12 Flat washer 0.5 ¿7.1 M7×0.75 191