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Compact type potentiometer suitable for volume and tone controls Without Knob TypeRK08H RK08H123002K Japan Export Refer to P.376 for other specifications. Refer to P.376 for soldering conditions. Refer to P.382 for ordering products not listed. Length of the shaft （mm） 4.5 1. Other varieties are also available. Refer to “Other Specifications” (P.376). 2. Dip soldering can be applied to the above products. Please specify if required Back-to-back mounting types are excluded. Notes Product Line Number of resistor elements Mounting direction Vertical type Back-to-back mounting type Vertical type Back-to-back mounting type Vertical type Center detent Without Without With Total resistance （kΩ） 15A 100 15A 100100 1 ,0001 ,000 100100 1 ,0001 ,000 Resistance taper RK08H11100U3 RK08H11100UD RK08H11100XC RK08H1110A04 RK08H11100X7 RK08H1120A05 RK08H113003Q RK08H113003G RK08H12100GP RK08H12100F3 RK08H122005A Products No.Minimum order unit （pcs.） Drawing No. Single-unit Dual-unit Manual Manual Reflow Reflow Soldering 15 C 15 C 15A Packing Specifications Reel size Bulk / Taping 21.517.5 ø330 ø13 hole Unit:mm ■ Typical Specifications Items Specifications Total resistance tolerance ±30％ Maximum operating voltage 50V AC 20V DC （Single-unit only） Total rotational angle 200° ±10° Rotational torque 1 to 10mN ・ m 0.5 to 10mN ・ m （Reflow type） Operating life Without detent 10,000 cycles With detent 5,000 cycles Operating temperature range −10℃ to ＋60℃ Soldering Packing specifications Number of packages （pcs.） Tape width （mm） Export package measurements（mm）1 reel 1 case /Japan 1 case /export packing Manual Bulk ー 5,000 10,000 ー 368×530×180 Reflow Taping 1 ,000 4,000 4,000 16 397×401×13 9

Single-shaft, single-unit RK08H1110 Dimensions Unit:mm No. Photo Style Vertical Type Single-shaft, single-unit RK08H1110 Single-shaft, dual-unit RK08H1210 Back-to-back mounting type Single-shaft, single-unit RK08H1120 Single-shaft, dual-unit RK08H1220 Reflow-type Single-shaft, single-unit RK08H1130 Single-shaft, dual-unit RK08H1230 45˚ 8.5 1.9 ø2.5 ø8.8 M1.4G0.3depth3.2 9.4 Shaft shown in full CCW position 3.2 0.3 4.7 1.5 3.2 C0.15 Mounting surface R4.4 7.9 0.8 2.2 ø8.8 8.5 1.9 ø2.5 ʢø1.2ʣhole 45ƅ Shaft shown in full C.C.W. position Mounting surface 4.5 3.2 7.9 R4.4 3.2 C0.15 0.3 9.4 0.8 3.4 4.7 1.5 rk08h1110A04-RV15.EPS 45˚ 8.5 1.9ø2.5 ø8.8 M1.4 G 0.3depth3.2 Shaft shown in full CCW position 10.3 4.4 1.5 3.2 C0.15 3.2Mounting surface R4.4 7.9 2.3 8.5 0.8 Shaft shown in full CCW position 3.2 C0.3 0.6 Mounting surface 0.1 0.1 3.05 1.5 0.8 C0.15 45˚ 1.9ø2.5 M1.4G0.3depth3.2 8.7 R5.2

RK08H／Without Knob Type Reflow-type (Viewed from mounting side) Unit:mm Single-shaft, single-unit Single-shaft, dual-unit Single-shaft, dual-unit （Resistance taper 15C） 45˚ Y 0.8 4.8 Y 45˚ 3.6 X X 1.52 15.9 8.3 2-ø1.2 hole DummyTerminals 45˚ Y 0.8 4.8 Y 45˚ 3.6 X X 1.52 15.9 8.3 2-ø1.2 hole Terminals 45˚ Y 0.8 4.8 Y 45˚ 3.6 X X 1.52 15.9 8.3 2-ø1.2 hole Terminals Standard Specification Circuit Diagram Single-shaft, single-unit Single-shaft, dual-unit Single-shaft, dual-unit （Resistance taper 15C） 1 1 3 3 1 1 3-ø1 hole90˚ X X 1.2 R4.7 1.2 1.5Y Viewed from mounting side Y PC Board Mounting Hole Dimensions / Terminal Layout Vertical type (Viewed from mounting side) Unit:mm Single-shaft, single-unit Single-shaft, dual-unit Single-shaft, dual-unit （Resistance taper 15C） 3-ø1 holeDummy 90˚ Y X X 1.2 R4.7 1.2 1.5Y Viewed from mounting side Viewed from mounting side 3-ø1 hole90˚ X X 1.2 R4.7 1.2 1.5Y 3 1 Y Keep the DUMMY terminal open in the circuit. Note Back-to-back mounting type (Viewed from shaft side) Shaded areas are solder lands. Shaded areas are solder lands. Shaded areas are solder lands. Unit:mm Single-shaft, single-unit Single-shaft, dual-unit 3-ø1 holeDummy 90˚ Y X X 1.2 R4.4 Y Viewed from shaft side 1.50.6 ø4.5 hole 3-ø1 hole90˚ Y X X 1.2 R4.4 0.6 Y Viewed from shaft side 1.5 ø4.5 hole

In addition to the products listed, we can accommodate the follow specifications. Total Resistance Variety Total resistance （k Ω） 5 10 20 50 100 Resistance taper 15A 1B 3B 15 C Resistance Taper When ordering product varieties that are not listed, specify referring to the examples below. Sample Part Number R K 0 8 H 1 1 1 0 F 1 C 0 B 1 0 3 Detent Code Without With Model type 111 112 Single-unit Vertical type

113 Single-unit Reflow type

121 Dual-unit Vertical type

Single-unit Back-to-back mounting type 122 123 Dual-unit Back-to-back mounting type Dual-unit Reflow type Resistance taper Code A B Resistance taper 15A Resistance taper 15 C Code C V Length of the shaft （mm） Code F1 1 F4 4.5 Total resistance Code 502 103 203 Total resistance （k Ω） Total resistance （k Ω） 100 ー Code 503 10 4 ー ＊Only 1mm types are provided with the M1.4 tap screws. ＊Reflow soldering cannot be applied in the 4.5 mm type. ＊Detent can only be specified for non-reflow single-unit types. 100 0 100 90 80 70 60 50 40 30 20 10 Rotation travel (%) Term."1" Term."3" Output volt.across term.1-2 Input volt. across term. 1-3 G 100 (%) B(1B) V(vol.control)(3B) J J A(15A) G J J Marked are specifications recommended by ALPS. Note Without Knob Type / Other Specifications Without Knob Type / Ordering Products Not Listed

Knob Operating Type Potentiometers Type Without knob type With knob type Series RK08H1 □ 1 RK08H1 □ 2 RK08H1 □ 3 RK10J1 □ E RK10J1 □ R RK14J1 □ A RK14J1 □ R Single-unit/Dual-unit Single-unit/Dual-unit Single-unit/Dual-unit Single-unit/Dual-unit Single-unit/Dual-unit Single-unit/Dual-unit Single-unit/Dual-unit Photo Terminal orientation Vertical Back-to-back mounting Reflow type — — — — Operating temperature range − 10℃ to +60℃ −25℃ to +70℃ Operating life Without detent 10,000 cycles With detent 5,000 cycles 10,000 cycles Life cycle Electrical performance Total resistance （k Ω） 5, 10, 20, 50, 100 10, 20, 50, 100 Resistance taper 15A, 1B, 3B, 15C Rated power 0.03W Insulation resistance — — — 100MΩ min. 100V DC Voltage proof — — — 10 0V A C f or 1minute Mechanical performance Detent Without / Center detent Without Stopper strength 0.1N 70mN･m Push-pull strength 10N 5N Terminal style Insertion Reflow Insertion Reflow Insertion Reflow Page 373 377 Potentiometers Cautions Potentiometers Resistance Taper 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 Maximum AttenuationResidual Resistance Nominal total resistance ※ Residual resistance 100kΩ≧R≧50kΩ 0.1% o r less of nominal total resistance 50kΩ＞R＞ 10kΩ 30Ω or less 10kΩ≧R 20Ω or less Nominal total resistance Maximum attenuation R ≧10 0 k Ω 90dB min. 100kΩ＞R≧50kΩ 80dB min. 50kΩ＞R≧ 10kΩ 70dB min. 10kΩ＞R 60dB min. ※ Applies only to products with specified residual resistance

Knob Operating Type Potentiometers / Soldering Conditions No. of reflows No. of solders No. of solders 1. When using an infrared reflow oven, solder may sometimes not be applied. Be sure to use a hot air reflow oven or a 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. Notes 1 time 1 time Soldering temperature Soldering timeSoldering surface temperature Heating time RK08H1□1, RK08H1□2, RK10J, RK14J RK14J1□A Series Series 350℃ max. 8 0 to 120 ℃ 70±30s 3s max. 260℃±5℃ 4±1s Tip temperature Preheating Soldering time Dip soldering Reference for Manual Soldering Reference for Dip Soldering RK08H1□3, RK10J1□R, RK14J1□R 250℃ 3s 4 min. 2 time max.200℃ 2 min. 40s15 0 ℃ 15 0 ℃ Series Example of Reflow Soldering Condition 300 200 100 A B C Time (s) G max. F max. H max. E max. Room temperature Temperature (˚C ) Pre-heating D Temperature profile DA B C E GF H