Metal Shaft Potentiometer 50mm Size Metal Shaft High-quality-audio Type RK50 Series RoHS applicable Better tone, better characteristics and high definition and suitable for high-grade. Features Rotary Potentiometers ● Slide Potentiometers Multi Control Devices ● Rotary Sensors Linear Sensors ● ● ● ● Metal Shaft Applications Insulated Shaft Knob Operating Employment of low-distortion carbon ink provides high fidelity sound reproduction. Gold plated multi contact point wire brushes reduce distortion in sound reproduction. Employment of low resistance ink provides a gang error of ±1 dB for the range between −100 and 0 dB. Solid brass lathe-carved case improves channel separation performance. Employment of mirror surface-treated resistor materials reduces slide noise. Designed torque mechanism adds a good operational feel. ● Volume control in quality audio components such as amplifiers Typical Specifications Items Specifications Total resistance tolerance ±20％ Maximum operating voltage 150V AC Total rotational angle 300±3° Rotational torque 13 to 43 mN・m Operating life 15,000 cycles Operating temperature range − 10℃ to ＋70℃ Recommended Products List Number of resistor elements Dual-unit Quad-unit 40 Mounting direction Horizontal type Products No. Shaft type RK50112A0004 Length of the shaft （mm） 25 Slotted RK50114A0001 Center detent Total resistance （kΩ） Minimum packing unit （pcs.） 15A 1 100 Without 30 Resistance taper 50 Drawing No. 1 2 50mm Size Metal Shaft High-quality-audio Potentiometer Dimensions Unit:mm No. 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 Slide Potentiometers 1 1 Mounting surface C0.5 M12x0.75 27 14 10 Multi Control Devices 11.5 Rotary Sensors Linear Sensors ø4 4 1 3.5 5 5 55 ø12 1 Rotary Potentiometers 1q2 34 29.9 10-ø1.2 holes Mounting hole detail viewed from mounting side Single-shaft, quad.-unit RK50114 58 54.4 30 10 Circuit diagram 3 Not specified slotting angle 1.6 2 Metal Shaft 27 ø4 1 Insulated Shaft 10 10 10 11.5 5 5 55 0.5 C0.5 M12G0.75 3.5 4 2 1 1 Mounting surface 14 ø12 1 ø8 4 1q 2 3 4 29.9 20-ø1.2 holes Knob Operating Mounting hole detail viewed from mounting side 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 Resistance Taper Resistance taper 15A 3B Dimensions of Shaft Unit:mm Slotted type L1 Not specified slotting angle 10 L1 1.6 1 20 ø8 25 30 40 M12G0.75 C0.5 Note Shows the specification recommended by us. For products specifications, see P.46, 47 For resistance taper, see P.199 41 Metal Shaft Potentiometers Products Specifications Model RK20B RK25T RK271 −10℃ to ＋105℃ −10℃ to ＋60℃ RK501 Items Operating temperature range Total resistance tolerance Rotary Potentiometers −10℃ to ＋70℃ Slide Potentiometers ±20％ Rated power 0.06W Maximum operating voltage 20V DC 0.05W 5V DC 30V AC 0.1W Multi Control Devices 150V AC Rotary Sensors Linear Sensors R≦10kΩ 20Ωmax. 10kΩ＜R≦50kΩ 30Ωmax. Residual resistance 50kΩ＜R 0.1% or less of nominal total resistance Electrical performance Metal Shaft 5kΩ≦R＜ 10kΩ 70dB min. 10kΩ≦R＜ 50kΩ 80dB min. 50kΩ≦R＜100kΩ 90dB min. 100kΩ≦R 100dB min. Maximum attenuation （Volume control） 100MΩ min. 250V DC 100MΩ min. 500V DC Voltage proof 1 minute 300V AC 1 minute 500V AC Total rotational angle 360° 300±5° 300±3° Motor-driven 300±5° 300±3° Rotational torque （mN・m） 20 to 80 0.5 to 7.5 5 to 35 Motor-driven 15 to 45 13 to 43 Stopper strength （N・m） ― 0.5 0.9 1.5 Vibration 100N max. Endurance Operating life 350℃ max. 3s max. 260±5℃, 4±1s 15,000 cycles Cold Environmental test Long-term heat resistance Moisture resistance 150N 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 Manual soldering Solder heat Dip soldering resistance （Dip available products） Insulated Shaft Knob Operating Insulation resistance Push-pull strength Mechanical performance 120dB min. 260±5℃, 4±1s ― 100,000 cycles 15,000 cycles −10℃ for 96h ＋105℃ for 96h ＋70℃ for 96h ＋40±2℃, 90 to 95％RH for 96h 47