EC20A1820401 ALPS

Metal Insulated Through Ring Encoders Shaft Shaft Shaft Type Type EC20A 20mm Size Metal Shaft Type RK203 Heavy torque and comfortable operation feel for encoder and potentiometer applications Typical Specifications Specifications Items Encoder Potentiometer Rating 1mA 5V DC 0.05W 30,000 cycles Operating life 30 to +80 40 to 85 Operating temperature range Product Line Encoders Minimum order unit pcs. Shaft Length of the Detent torque Number of Number of Operating Push-on Travel of push-on Drawing Product No. configuration shaft mm mNm detent pulse direction switch switch mm Japan Export No. With 1.5 EC20A1824401 1 4020 Flat 30 18 18 Vertical 400 800 EC20A1820401 Without 2 2510 EC20A1820407 Potentiometer Minimum order unit pcs. Shaft Length of the Detent torque Number of Rotational Operating Number of Total resistance Resistance Drawing Product No. configuration shaft mm mNm detent angle direction resistor elements k taper Japan Export No. 17 220 RK203111000V 4020 Single- Flat 30 5 180 Vertical 10 1B 400 800 3 RK203111001A unit 12position 12position 4020 25 18 RK203111001B 218position 218position 2010 180 Notes 1. Only the encoder type can be supplied with a push-on switch. 2. Shaft design and other features are customizable. Packing Specifications Tray Number of packages pcs. Export package measurements mm 1 case /Japan 1 case /export packing 400 800 508374272 Dimensions Unit:mm PC board mounting hole dimensions No. Photo Style Viewed from mounting side EC20A Switch travel with push-on switch 3.5 10 30 20.2 travel 1.5mm 10 1.5 Mounting Encoder type surface 12 M9G0.75 C1 A NC 1.5 NC 1 3.5 C B NC 3 15.5 31 E D 2-0.9 D E (SW01) (SW02) (17.8) Refer to P.275 for attached parts. Refer to P.275 for switch specifications. Refer to P.299 for soldering conditions. 273 2.5 4.5 6 9 1.5 8.3 19.2Encoders Metal Insulated Through Ring Shaft Shaft Shaft Type Type EC20A 20mm Size Metal Shaft Type RK203 Dimensions Unit:mm PC board mounting hole dimensions No. Photo Style Viewd from mounting side EC20A without switch type Encoder type 20.2 3.5 8 30 Mounting 10 12 surface C1 M9G0.75 1.5 A NC NC 2 C B NC 3.5 3 15.5 3-1 (17.8) RK203 without switch type Potentiometer type 20.2 3.5 8 30 10 12 Mounting surface C1 M90.75 3 3 NCNC NC NC 1.5 2 1 3.5 3 NC 15.5 3-1 ( ) 17.8 Output Wave EC20A Output Wave EC20A V =V =2.5V max. 1 2 Test circuit Output waveform 5V DC tt RR V1 Terminal A Terminal B V2 Encoder ON OFF ON Sliding direction Terminal C /s t : Masking time to avoid chattering At R 5k Detent position cannot be specified for B signal. Chattering : 8ms max. Bounce : 5ms max. 274 2.5 2.5 4.5 4.5 6 6 9 9 1.5 1.5 8.3 8.3 19.2 19.2 5V