RK203 20mm Size Metal Shaft Type EC20A Heavy rotation torque and good operational feel, available in potentiometer and encoder types Typical Specifications Specifications Potentiometer Encoder Items Rotary Potentiometers Rating 0.05W 1mA 5V DC Total resistance tolerance 20 50V AC, 30V DC Maximum operating voltage Slide Potentiometers Detent torque 4020mNm Operating life 30,000 cycles Operating temperature range -40 to 85 -30 to 80 Products Line Potentiometer Length of Detent torque Number of Rotational Operating operating section section mNm positions angle mm Metal Shaft 17 220 5 180 4020 Flat 30 12 position Mounting directio Number of resistor elements Total resistance Resistance taper k Minimum order unitpcs. Japan RK203111000V Vertical type Singleunit 10 1B 400 800 12 position 4020 25 Insulated Shaft 18 218 position 2010 Drawing No. Products No Expert RK203111001A 1 RK203111001B 218 position 180 Encoder (Incremental Type Knob Operating Mounting directio Shaft configuration Length of operating sectionmm Number of detent Number of pulse Vertical type Flat 30 18 18 Travel of push-on switchmm Minimum order unitpcs. Japan Expert 400 800 -- 1.5 Products No Drawing No. EC20A1820401 2 EC20A1824401 3 Ring Type Note . Only the encoder type can be supplied with a push-on switch. 1 2. Shaft design and other features are customizable. Packing Specifications Tray Number of packagespcs. 1 case /Japan 1 case /export packing Export package measurements mm 400 800 374x508x272 Dimensions Photo 3.5 o20.2 30 8 10 12 18.4 2.6 Mounting surface 3.5 15.5 o3 1.5 NC 1 3 10 2 NC 2 NC 1 NC 3 9 9 C1 8.3 M9x0.75 1.5 1.5 1 2.5 4.5 o6 RK203 Without switch type Potentiometer type PC board mounting hole dimensions Viewed from mounting side Style 19.2 No. 3-o1.2hole 1.25 6.25 3.75 3-1 (17.8) 346 Refer to P.348 for for encoder switch specifications.. Refer to P.348 for attached parts. Refer to P.359 for soldering conditions. RK203/EC20A / 20mm Size Metal Shaft Type Dimensions Unit:mm Photo PC board mounting hole dimensions Viewed from mounting side Style 3.5 8 30 10 o20.2 12 18.4 15.5 9 A CB A C B NCNC NC 10 8.3 1.5 3.5 19.2 o6 4.5 2 C1 M9G0.75 1.5 1.5 o3 3-o1.2 hole Slide Potentiometers 1.25 3.75 3-1 (17.8) 1.5 o20.2 18.4 9 C1 1.5 3.5 8.3 4.5 o6 M9G0.75 1.5 D A C B NC NC NC o3 15.5 1.5 E ACB 3.75 D E 3-1 (SW01) E D (17.8) 6.25 2-0.9 (SW02) Insulated Shaft 5- o1.2 hole 1.25 Metal Shaft 3 5 19.2 12 10 Switch travel 30 7 10 9 10 6.25 2.6 3.5 Mounting surface 2.5 EC20A With push-on switch (travel 1.5mm), Incremental type Rotary Potentiometers 2.6 Mounting surface 2.5 EC20A Without switch type, Incremental type 9 No. Knob Operating Output waveEC20A Sliding noiseEC20A ATerminal A-C Clockwise BTerminal B-C ATerminal A-C Counter-clockwise BTerminal B-C OFF Output ON OFF ON OFF ON OFF Test circuit R Output waveform 5V DC t R Terminal A Terminal B t V1 5V Signal Ring Type V1=V2=2.5V max. Shaft rotational Direction V2 Encoder Terminal C Measurement condition : Rotation speed 360/s ON OFF ON Sliding direction t : Masking time to avoid chattering ON The dotted lines indicate detent positions Signal B output at detent positions is not specified At R 5k Chattering8ms max., Bounce5ms max. Circuit DiagramRK203 3 2 1 347 20mm Size Metal Shaft Type / Switch Specifications The attached switch can be used with only encoder types. Rotary Potentiometers Switch type Momentary push switch Contact arrangement Single pole and single throwPush-on Travelmm 1.50.5 Operating force 42N Operating life 20,000times Slide Potentiometers Electrical performance 0.1A 5V DC (0.1mA 5V DC min. ratings) Contact resistance 100m max. for initial period, 200m max. after operating life. Insulation resistance 100M min. 250V DC Voltage proof 300V AC for 1 minute or 360V AC for 1 second Metal Shaft 20mm Size Metal Shaft Type / Attached Parts Insulated Shaft The following parts are included with the product. Unit:mm Nut Knob Operating 11 Washer 2 o14 o9.1 Ring Type M9x0.75 348 Rating 0.5 Metal Shaft Potentiometers List of Varieties Type Series Number of resistor elements 16mm size 20mm size RK163 RK203 27mm size 50mm size Rotary motor-driven RK271 RK501 RK168 Dual/quad Dual/quad/5-ganged/6-ganged Single-shaft Single/dual Single Horizontal Vertical Single/dual/quad Photo Terminal mounting Horizontal Rotary Potentiometers Fixing method of bushing Bushing screw clamp -10 to 70 -40 to 85 -10 to 70 Operating life 15,000 cycles 30,000 cycles 15,000 cycles Available for automotive use -- -- Total resistance k 5, 10, 20, 50, 100, 200 10 5, 10, 20, 50, 100, 250 Resistance taper 15A, 1B, 3B, 15C B Rated Power 0.1W 0.05W15A -- -- Life cycle (availability) 0.05W R10k 20 max. 10kR50k 30 max. 50kR3M Nominal total resistance of 0.1% or less% -- 5kR 10k 70dB min. Maximum 10kR 50k 80dB min. attenuation 50kR100k 90dB min. Volume control 100kR 100dB min. Insulation resistance -- 100M min. 500V DC 10M min. 250V DC 500V AC for 1minute R10k 20 max. 10kR50k 30 max. 50kR Nominal total resistance of 0.1% or less% -- -- 5kR 10k 70dB min. 10kR 50k 80dB min. 50kR100k 90dB min. 100kR 100dB min. 120dB min. 5kR 10k 70dB min. 10kR 50k 80dB min. 50kR100k 90dB min. 100kR 100dB min. -70dB to -60dB 3dB max. -60dB to 0dB 2dB max. -100dB to 0dB 2dB max. -60dB to -40dB 5dB max. -40dB to 0dB 3dB max. 100M min. 500V DC 100M min. 250V DC 500V AC for 1minute 300V AC for 1minute 300V AC for 1minute Center-taps Mechanical performance 0.05W Ring Type Voltage proof -40dB to 0dB 3dB max. 0.1W Knob Operating Gang error applicable to Dual-unit parts for audio volume control purposes 15A, 3B Insulated Shaft Electrical performance 10, 20, 50, 100 Metal Shaft Residual resistance Slide Potentiometers Operating temperature range Without Detent Without, Center, 21, 31, 41 17 Without, Center, 21, 31, 41 Stopper strength 0.9 Nm 0.5 Nm 0.9 Nm Push-pull strength 100N max. Without 1.5 Nm 0.9 Nm 150N max. 100N max. 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 Vibration Shaft style Serrated type, Flat type, Slotted type Terminal style Insertion, Lead Attached switch -- -- Page 341 346 Flat type Slotted type, Flat type Slotted type Flat type -- -- -- 349 353 355 Insertion Metal Shaft Potentiometers Soldering Conditions 359 Potentiometers Cautions 439 Potentiometers Measurement and Test Methods 441 Potentiometers Resistance Taper 443 Note Indicates applicability to some products in the series. 321 Metal Shaft Potentiometers / Soldering Conditions Reference for Manual Soldering Series No. of solders RK09L, RK097 350 max. 3s max. 1 time RK203 300 max. 3s max. 1 time RK119 35010 +1 0 1 time RK271 350 max. RK501 35010 RK163 350 max. 5s max. 1 time Potentiometer terminal 300 max. 3s max. 1 time Motor terminal 350 max. 2s max. 1 time RK168 3 s 5s max. 1 time +1 0 1 time 5 s Slide Potentiometers Soldering time Rotary Potentiometers Tip temperature Reference for Dip Soldering Preheating Soldering surface Heating time temperature Series RK501 No. of solders 100 max. 2 min. max. 2605 51s 2 time max. 12010 2 min. max. 2605 51s 2 time Metal Shaft RK09L, RK097, RK203 Dip soldering Soldering Soldering time temperature Insulated Shaft Example of Reflow Soldering Condition Temperature profile A B 200 C D Ring Type Temperature (C ) Knob Operating 300 100 Room temperature Time (s) Pre-heating E max. F max. G max. H max. Series RK119 A B C D E F G H No. of reflows 260 230 180 150 2 min. 3s 40s 4 min. 2 time max. Notes 1. When using an infrared reflow oven, solder may sometimes not be applied. Be sure to use a hot air reflow oven or at type that uses infrared rays in combination with hot air. 2. The temperatures given above are the maximum temperatures at the terminals of the potentiometer when employing a hot air reflow method. The temperature of the PC board and the surface temperature of the potentiometer may vary greatly depending on the PC board material, its size and thickness. Ensure that the surface temperature of the potentiometer does not rise to 250 or greater. 3. Conditions vary to some extent depending on the type of reflow bath used. Be sure to give due consideration to this prior to use. 359