Metal Shaft Potentiometer Rotary Motor-driven Type RK168/RK271 Series Remote controllable and available in a wide variety of products. Rotary Potentiometers Typical Specifications Slide Potentiometers Items Specifications RK168 Total resistance tolerance ±20％ Maximum operating voltage 50V AC Total rotational angle 10 to 40mN・m Operating life Motor voltage − 10℃ to ＋70℃ 4 to 6V DC（Standerd：4.5V DC） Potentiometer rotational speed （sec/300° ） 12±3（4.5V DC） At rotation：100mA / At end slip：150mA Maximum operating current Knob Operating 15 to 45mN・m 15,000cycles Operating temperature range Insulated Shaft 30V AC 300±5° Rotational torque Metal Shaft RK271 Product Line Model Number of resistor elements Shaft type Length of Total Motor Resistance the shaft resistance print taper （mm） （kΩ） terminal Dualunit 16mm size RK1681□MG0 Quadunit 100 3B With 20 15A Without 3B With 15A Without 200 Products No. Drawing No. RK16812MG099 1 RK16814MG02R 2 RK16816MGA04 3 RK27112MC030 4 25 Flat 6 gangedunit 27mm RK27112MC0 size Minimum order unit （pcs.） 100 Dualunit 150 Dimensions Style 7 ˚ 60 25 12 G 25 C1 2 M9G0.75 ! 2-ø2.35 4 R1 R2 12.5 13.2 0.3 9 13.3 ø25 max. 1 4.5 ø6 18.7 (44.9) (18.1) 23.25 e 16mm size Single-shaft, dual-unit RK16812MG ø3 0.8 2-ø2.65 q w e w q Photo No. Unit:mm PC board mounting hole dimensions （Viewed from mounting side） Type Shaft shown in full CCW position Refer to P.363 for attached parts. 360 Metal Shaft Potentiometer Rotary Motor-driven Type RK168/RK271 Series Dimensions Photo Style 16mm size Single-shaft, quad.-unit RK16814MG Rotary Potentiometers ˚ 60 2-2.6G1.2 square holes Mounting surface 12.3 7.5 7.5 25 C1 2 M9G0.75 2-ø2.35 0.8 ø3 COM 4-dummy 4 R3 R1 R4 R2 16.5 0.3 9 13.3 12.5 13.2 4.5 ø6 ø25 max. 2 2.5 7.5 12.5 18.7 12 Slide Potentiometers 17.5 25 7 w q1 2 3 e (49.25) (18.1) 27.6 w q1 2 3 e No. Unit:mm PC board mounting hole dimensions （Viewed from mounting side） R1 R3 q w e R2 R4 1 2 3 2-ø2.65 16-ø1 holes Shaft shown in full CCW position ˚ 60 25 0.8 ø3 2-ø2.65 Shaft shown in full CCW position (68.35) (18.1) 15.1 31.6 R2 R1 2 ø3 C1 M8G0.75 1 123 17.5 17 30.5 12.5 16 4.5 ø6 ø25 max. 4 24-ø1 holes 10 12 Knob Operating R1 R3 R5 q w e R2 R4 R6 1 2 3 22.7 27 ˚ 60 25 7 4 27mm size Single-shaft, dual-unit RK27112MC 6-dummy 2-ø1.2 holes Insulated Shaft Mounting surface 10 5 5 2-ø2.35 COM Metal Shaft 5 R5 R3 R1 R6 R4 R2 4 M9G0.75 wq1 2 3 e C1 2 12.5 13.2 0.3 9 13.3 3 4.5 ø6 ø25 max. 12 2.5 7.5 12.5 2-2.6G1.2 square holes 4.35 Mounting surface 19.7 12.3 7.5 7.5 18.7 wq1 2 3 e 7 wq1 2 3 e 25 31.95 16.5 (53.6) (18.1) 7 11.5 16mm size Single-shaft, 6-ganged unit RK16816MG 6-ø1.2 holes 2-2.6G1.2 square holes Shaft shown in full CCW position 361 Metal Shaft Potentiometer Rotary Motor-driven Type RK168/RK271 Series Product Varieties In addition to the recommended products, the following specifications can also be accommodated. Rotary Potentiometers Slide Potentiometers Basic Motor Specifications Type Model Single-shaft, dual-unit RK16812MG Single-shaft, quad.-unit Single-shaft, 5-ganged-unit RK16814MG 16mm size Insulated Shaft Knob Operating Max. operating current At rotation 100mA Available 4 to 6V DC 12±3sec/300° （Standard:4.5） （4.5V DC） Available RK16816MG Single-shaft, dual-unit Single-shaft, quad.-unit 27mm size Potentiometer rotational speed Motor voltage RK16815MG Single-shaft, 6-ganged-unit Metal Shaft Motor type Sealed Motor printed case terminal Number of unit At end slip 150mA （4.5V DC） RK27112MC RK27114MC Total Resistance Variety 10 Total resistance（kΩ） 20 50 100 Resistance Taper Resistance taper 15A 3B 16mm Size（RK168 Series）Shaft Variety Unit:mm L1 60° L1 ø6 4.5 12 20 25 30 Shaft shown in full CCW position C1 16mm Size（RK168 Series）Standard Dimensions of Bushing and Fixing Lug 7 Unit:mm 9 0.3 13.3 18.7 M9G0.75 2 ø3 2-ø2.35 holes 2-ø2.65 holes Style of Printed Terminal for Motor For exclusive use of RK168 Unit:mm 2-ø1.2 holes 2-ø1.2 holes 20.7 Types other than RK168 2-2.6G1.2 square holes Note marked are specifications recommended by ALPS. 362 2-2.6G1.2 square holes 11.5 7 17 2 (1.9) 2 4 2 4 12.5 16.5 17 12.5 (1) 19.7 Metal Shaft Potentiometers List of Varieties Type Rotary Potentiometers 20mm size metal shaft 27mm size metal shaft Number of drive shafts Model 50mm size metal shaft highquality-audio Rotary motor-driven Single-shaft RK203 / EC20A RK2711 RK5011□A RK1681□ / MG0 RK2711□MC0 Slide Potentiometers Photo The bushing can be Fixing method of bushing fastened by use of screws Bushing screw clamp Terminal mounting Vertical type Horizontal type Attached switch Without Gang error applicable to Dual-unit parts for audio volume control purposes Insulated Shaft Knob Operating Solder heat resistance Metal Shaft The bushing can be fastened by use of screws Manual soldering 300℃ max. 3s max. Dip soldering 260±5℃, 5±1s −60dB to 0dB 3dB max. −100dB to 0dB 2dB max. 350℃ max. 5s max. 350±10℃, 5 ＋1 0 s −40dB to 0dB 3dB max. −60dB to 0dB 3dB max. 350℃ max. 3s max. 350℃ max. 5s max. Motor terminal : 350$max 2s max. Motor terminal:350℃ max. 2s max. 260±5℃, 5±1s Reflow soldering Operating temperature range −10℃ to ＋70℃ −30℃ to ＋80℃ Rated power 0.05W 0.1W R≦10kΩ 20Ωmax. 10kΩ＜R≦50kΩ 30Ωmax. 50kΩ＜R Nominal total resistance of 0.1% or less Maximum attenuation （Volume control） 5kΩ≦R＜ 10kΩ 70dB min. 10kΩ≦R＜ 50kΩ 80dB min. 50kΩ≦R＜100kΩ 90dB min. 100kΩ≦R 100dB min. R≦10kΩ 20Ωmax. 10kΩ＜R≦50kΩ 30Ωmax. 50kΩ＜R Nominal total resistance of 0.1% or less 120dB min. Insulation resistance 100MΩ min. 250V DC 100MΩ min. 500V DC Voltage proof 300V AC for 1minute 500V AC for 1minute Mechanical performance Stopper strength（N・m） 0.5 Environmental performance Electrical performance Residual resistance Cold Push-pull strength 100N max. Damp heat Page 5kΩ ≦R＜ 10kΩ ≦R＜ 50kΩ ≦R＜ 100kΩ ≦R 10kΩ 50kΩ 100kΩ 70dB min. 80dB min. 90dB min. 100dB min. 100MΩ min. 250V DC 100MΩ min. 500V DC 300V AC for 1minute 500V AC for 1minute 1.5 0.9 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 and for 2 hours respectively Vibration Dry heat 0.9 0.05W −40±2℃ for 192h −30±3℃ for 96h −20±3℃ for 240h 85±2℃ for 192h 70±2℃ for 96h 70±2℃ for 240h 60±3℃, 40±2℃, 60±2℃, 90 to 95％RH for 240h 90 to 95％RH for 96h 90 to 95％RH for 240h 352 354 358 −20±2 for 96h −30±3℃ for 96h 70±2℃ for 96h 40±2℃, 90 to 95％RH for 96h 360 ● Metal Shaft Potentiometers Attached Parts ………………………………………………………………………………363 ● Metal Shaft Potentiometers Cautions …………………………………………………………………………………364, 365 322 Metal Shaft Potentiometers Attached Parts The following parts are included with the product. Unit:mm Applicable products Bearing screw diameter Hexagonal nut Rotary Potentiometers Flat washer Slide Potentiometers 11 2 ø14 0.5 ø9.1 RK09L RK168 RK097 RK203 M9 M9G0.75 Metal Shaft 11 2 ø14 0.5 ø8.1 RK271 Insulated Shaft Knob Operating M8 M8G0.75 11 2 ø12 0.5 ø7.2 RK097 RK098 RK163 M7 M7G0.75 8 2 ø10 0.5 ø6.2 RK097 RK098 M6 M6G0.75 363