Metal Shaft Potentiometer 50mm Size Metal Shaft High-quality-audio Type RK50 Series High sound quality, good response and high grade for high end audio devices. Typical Specifications Rotary Potentiometers Items Slide Potentiometers Specifications Total resistance tolerance ±20％ Maximum operating voltage 150V AC Total rotational angle 300±3° Rotational torque 13 to 43mN・m Operating life 15,000cycles Operating temperature range − 10℃ to ＋70℃ Metal Shaft Insulated Shaft Knob Operating Product Line Number of resistor elements Dual-unit Quad-unit Mounting direction Shaft type Horizontal type Slotted Length of the shaft （mm） Center detent Total resistance （kΩ） 25 Resistance taper Minimum order unit （pcs.） 15A 1 100 Without 30 50 Products No. Drawing No. RK50112A0004 1 RK50114A0001 2 Dimensions No. Unit:mm Photo Style Single-shaft, dual-unit RK50112 38 34.4 25 10 Circuit diagram 3 Not specified slotting angle 1.6 2 1 ø8 4 Mounting surface C0.5 M12x0.75 27 14 10 11.5 ø4 4 1 3.5 5 5 55 ø12 1 1 1 1q2 34 29.9 10-ø1.2 holes Mounting hole detail viewed from mounting side Single-shaft, quad.-unit RK50114 58 54.4 Not specified slotting angle 30 10 1.6 Circuit diagram 3 2 10 10 10 11.5 5 5 55 27 ø4 1 4 0.5 C0.5 M12G0.75 3.5 1 1 Mounting surface 14 ø12 2 1 ø8 4 1q 2 3 4 29.9 20-ø1.2 holes Mounting hole detail viewed from mounting side 358 50mm Size Metal Shaft Type Potentiometer Product Varieties In addition to the recommended products, the following specifications can also be accommodated. Total Resistance Variety 10 Total resistance（kΩ） 20 50 100 250 Rotary Potentiometers Slide Potentiometers Resistance Taper Resistance taper 15A 3B Dimensions of Shaft Unit:mm Slotted type L1 20 25 30 40 G Metal Shaft Insulated Shaft Knob Operating Note marked are specifications recommended by ALPS. Refer to P.502 for resistance taper. 359 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