Hollow Shaft Type Devices 45mm Size Encoder/Potentiometer EC45A/RK45A Series Large ring, heavy torque device perfect for large ring knob design. Typical Specifications Hollow Shaft Type Devices Specifications Items Rating（max.） Encoder Potentiometer 0.5mA 5V DC 0.05W Operating life 30,000cycles Product Line Encoder（Incremental type） Number of detent Number of pulse Detent torque （mN・m） Minimum order unit （pcs.） Product No. Drawing No. 30 15 30±14 200 EC45A1520404 1 Encoder（Absolute type） Output code Positions Rotational angle Detent torque （mN・m） Minimum order unit（pcs.） Product No. Drawing No. 5bit Gray code 31 240° 36±16 200 EC45AG520402 2 Potentiometer Total resistance Resistance taper Positions Rotational angle Detent torque （mN・m） Minimum order unit（pcs.） Product No. Drawing No. B 5 240° 50±20 200 RK45A1100004 3 10kΩ Encoder Type Potentiometer Type Note Products other than those listed in the above chart are also available. Please contact us for details. Dimensions No. Unit:mm Photo PC board mounting hole dimensions （Viewed from switch mounting face） Style EC45A Incremental Type 20 ø44.5 44.4 42.8 36 3.5 9 ø35.6 2.6 .2 ¿3 2- 7 5 18.5 1 2 3 3.5 EC45A Absolute Type 18 .2 9 3-¿ 1 34.8 ho le s 3 22.7 28.2 25 les 3.2 ho 1 44.4 3.5 20 ø44.5 42.8 9 ø35.6 36 2- 7 ø3 2.6 .2 le 3.2 ho 21 25 18.5 5 3 22.7 ho le s 1 2 3 ø1 .2 9 3.5 460 6- 34.8 28.2 s 2 4 5 6 2ø2 ho 33 les 36 Hollow Shaft Type Devices 45mm Size Encoder/Potentiometer EC45A/RK45A Series Dimensions No. Unit:mm Photo PC board mounting hole dimensions （Viewed from switch mounting face） Style RK45A Potentiometer Type 3.5 20 ø44.5 42.8 9 ø35.6 Hollow Shaft Type Devices 44.4 36 7 2ø3 2.6 ho 3.2 .2 le 21 5 22.7 3 18.5 25 28.2 s 3 le s 1 2 3 ho ø1 Sliding Noise（Incremental Type） Output Wave（Incremental Type） Signal （ ） V1＝V2＝2.5V max. Test circuit t R （ ） Output waveform 5V DC Terminal 1 V1 Terminal 2 V2 Encoder ON （ ） Measurement condition：Rotation speed 360˚/s （ ） OFF ON Encoder Type Terminal 3 t R 5V 18 3- 3.5 ø2 ho le 3 .2 9 34.8 t : Masking time to avoid chattering Potentiometer Type At R = 10kΩ Chattering : 3ms max. Bounce : 2ms max. Standard Codes（Absolute Type） 31 Number of positions Code Gray Te Pos rm itio in n al 4 2 3 5 6 1 2 3 ● ● 4 5 6 7 8 ● ● ● ● ● ● 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 1. The ● marks shows the ON position. 2. The ● marks : Connections between terminals and the common terminal（terminal No. =1）are ON. Circuit Diagram（Potentiometer Type） 1 3 CW 2 461 Hollow Shaft Type Devices List of Varieties Encoder Type Series Hollow Shaft Type Devices 21mm size 28mm size EC21A EC28A 35mm size EC35AH EC35B ABC Incremental/ Self-returen switch Hollow shaft 40mm size 45mm size 60mm size EC40A EC45A EC60A Photo Output Incremental Shaft types Outline specifications Operating direction 9/18 15/30 6GABC／18 10GABC／30 15/30 31 Position 15/30 15／30 Without Push switch（Travel mm） Optional functions 12° Dimensions Soldering mm W ︵ 28 40.4 44.5 37 41.6 45 61.8 29 H 12° 35 35 21.6 D ︶ 21.35 15 4 Manual soldering 9 11.5 350℃ max. 3s max. Dip soldering 260℃ max. 5s max. 260±5℃, 5±1s Reflow soldering Operating temperature range –40℃ to ＋85℃ Electrical performance 2.5V max. 2.5V max. at 5V DC,0.5mA at 5V DC,1mA （resistive load）（resistive load） 2.5V max. at 5V DC,1mA （resistive load） Output voltage Potentiometer Type Absolute Incremental Vertical Number of pulse/ Number of detent Changeover angle Encoder Type Incremental 2.5V max.at 5V DC,0.5mA （resistive load） Insulation resistance 100MΩmin. 250V DC 10MΩ min. 50V DC 10MΩ min. 500V DC Voltage proof 300V AC for 1minute 50V AC for 1minute 500V AC for 1minute Rotational torque 12±7mN･m 16±7mN･m 20±10mN･m Mechanical performance Terminal strength Actuator strength 20±10mN･m 20±11mN･m 18±7mN･m 5N for 1minute 3N for 10s. Rotational direction 100N Push direction Vibration Shall be in accordance with individual 40±20mN･m specifications. 100N 50N 10 to 55 to 10Hz/min., the amplitude is 1.5mm for all the frequencies, in the 3 direction of X, Y and Z for 2 hours respectively Environmental performance Cold –40±2℃ for 240h –40±3℃ for 240h Dry heat 85±2℃ for 240h 85±3℃ for 240h Damp heat Page 40±2℃, 90 to 95％RH for 240h 60±2℃, 90 to 95%RH for 240h 455 456 457 458 459 460 462 Self-return Switch Specifications Items EC35B Circuit・number of contacts Single pole and double throw（Self-return） Travel （mm） 2.8±0.5 Push operating force （N） 3.8±1.5 Switch ON position 15±5° Ratational torgue 40±25mN・m Rating 10mA 5V DC Contact resistance 200mΩ max. Operating life 15,000cycles ● Hollow Shaft Type Device Cautions ……………………………………………………………………………465, 466, 467 Note F 448 The operating temperature range for automotive applications can be raised upon request. Please contact us for requirements of this kind.