Metal Shaft Potentiometer 27mm Size Metal Shaft Type RK27 Series High performance potentiometer with excellent operational feel. Typical Specifications Rotary Potentiometers Items Slide Potentiometers Specifications Total resistance tolerance ±20％ Maximum operating voltage 30V AC Total rotational angle 300±3° Rotational torque 8 to 35mN・m Operating life 15,000cycles Operating temperature range Metal Shaft Insulated Shaft Knob Operating − 10℃ to ＋70℃ Product Line Number of resistor elements Mounting direction Shaft type Length of the shaft （mm） Center detent Total resistance （kΩ） Resistance taper Minimum order unit （pcs.） 31 Single-unit Products No. Draw ing No. RK2711120026 25 1 RK271111001T Slotted 20 Horizontal type RK27112A00AK 100 25 Without 15A 100 2 RK27112A00CC Dual-unit 20 RK27112A0A16 25 RK27112A00B9 Flat 3 Note Products other than those listed in above products are also available. Please contact us for details. Refer to P.356 for product varieties. 354 Metal Shaft Potentiometer 27mm Size Metal Shaft Type RK27 Series Dimensions No. Unit:mm Photo PC board mounting hole dimensions （Viewed from mounting side） Style Single-shaft, single-unit RK27111 Rotary Potentiometers Not specified slotting angle 27 25 15.3 7 Mounting surface 5 10 1 ø6 1.6 Slide Potentiometers 2 Single-shaft, dual-unit RK27112 L1 20 5 5 4 C0.5 R1 12.5 ø3 12 24.5 1 1 2 3 M8G0.75 3-ø1.2 holes 1 Metal Shaft 25 25.3 Not specified slotting angle L1 Mounting surface 27 7 10 Knob Operating 5 10 R1 M8G0.75 2 Single-shaft, dual-unit RK27112 L1 20 4 C0.5 R2 12.5 ø3 12 24.5 2 5 5 1 ø6 1.6 Insulated Shaft 1 1 2 3 6-ø1.2 holes 25 ﾟ × 3 !! " # 355 27mm Size Metal Shaft Type Potentiometer Product Varieties In addition to the recommended products, the following specifications can also be accommodated. Products Specification Rotary Potentiometers Type Model Slide Potentiometers Single-shaft, single-unit RK27111 Single-shaft, dual-unit RK27112 Single-shaft, quad-unit RK27114 Mounting height （mm） Detent variety 12.5 Center 21 31 41 Gang error −60dB to 0dB within 3dB −80dB to −60dB within 5dB possible depending on total resistance and taper. Total Resistance Variety 5 Total resistance（kΩ） Metal Shaft Insulated Shaft 10 20 50 100 250 Resistance Taper Resistance taper 15A 3B Knob Operating Dimensions of Shaft 1 Slotted type Unit:mm Not specified slotting angle L1 7 L1 1.6 1 15 ø6 20 25 30 C0.5 M8G0.75 2 Flat type Unit:mm L1 R1 ˚ 4.5 60 ø6 7 M8G0.75 Shaft shown in full CCW position L1 R1 15 7 20 12 25 12 30 12 C1 Note marked are specifications recommended by ALPS. Refer to P.363 for attached parts. Refer to P.357, 502 for resistance taper. 356 27mm Size Metal Shaft Type Potentiometer Orders Other Than Recommended Products When ordering product varieties that are not listed in the Product Line, please specify by referring to the below example. Sample Part Number R K 2 7 1 1 2 A 0 S 2 5 C 0 A 1 0 4 Rotary Potentiometers Slide Potentiometers Model type Model type Code 111 Single unit 112 Single unit, with deteut 12A Dual unit for vol. Shaft type Code Shaft type F Flat S Slotted Metal Shaft Length of the shaft（L1） （mm） Code Length of the shaft 15 15 20 20 25 25 30 30 Insulated Shaft Knob Operating Detent Code Detent C0 Without C1 Center 21 21 31 31 41 41 A 15A V 3B 100 90 80 70 60 50 40 30 V (v ol. co nt ro l)( 3B ) Resistance taper Output volt.across term.1-2 100 (%) Input volt. across term. 1-3 G Code J Resistance taper 20 10 0 10 Term."1" A) 15 A( 20 30 40 50 60 70 Rotation travel (%) 80 90 100 J Term."3" Total resistance Code Total resistance Total resistance （kΩ） Code 502 5 503 50 103 10 104 100 203 20 254 250 （kΩ） Note marked are specifications recommended by ALPS. 357 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