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This LED illuminated ring potentiometer is best suited for knob design of various set devices 39mm Size LED Illuminated Ring TypeRK39A Dimensions Product Line 1. Other varieties are also available. Please inquire. 2. We can also provide LED colors other than the above mentioned. Please contact us if required. Notes Packing Specifications Tray Refer to P.386 for soldering conditions. RedB 2 2 0 °± 5 ° 1 8 0 °± 5 ° 2 7 0 °± 5 ° 4 0 ±16 50±20 RK39A1A00007 RK39A1A00027 RK39A1A00028 Product No.LEDResistance taper 5kΩ Total resistance Number of positions Rotational angle Detent torque （mN・m） 250 500 Minimum order unit （pcs.） Japan Export Number of packages （pcs.） Export package measurements （mm）1 case / Japan 1 case / export packing 250 500 540×360×380 Unit:mm Style PC board mounting hole dimensions （Viewed from mounting side） 3-2.2 3-1.2 3.2 1.2 ø 20.2 ø 39 8.5 19.7 3.7 1.25 Mounting surface ø 24.6 3.5 14.4 2.52.5 22.2 2- ø 2.6 2-1.8 5- ø 1.2 holes ø 1.5 A321K 18.540.4 2-3.15 3-2.2 3-1.2 3.2 1.2 ø 20.2 ø 39 8.5 19.7 3.7 1.25 Mounting surface ø 24.6 3.5 14.4 2.52.5 22.2 2- ø 2.6 2-1.8 5- ø 1.2 hole ø 1.5 A321K 18.540.4 2-3.15 RK39A1A00027 RK39A1A00007 RK39A1A00028 ■ Typical Specifications Items Specifications Contact resistance ±20% Maximum operating voltage 50V AC, 30V DC Total rotational angle 180° ±5° , 220° ±5° , 270° ±5° (Customizable up to 290° ) Operating life 30,000 cycles Operating temperature range −40℃ to ＋85℃ 40.4 18.5 2- 3.15 K1 23 A Ø1.5 5-Ø 1.2 hole 2- Ø 2.6 2- 1.81.25
Insulated Shaft Knob Operating Ring Type Rotary Potentiometers Slide PotentiometersMetal ShaftInsulated Shaft Knob OperatingRing Type List of Varieties Ring Type Potentiometers Type 39mm size 45mm size Series RK39A RK45B RK45C Single-unit Single-unit Single-unit Photo Features LED illuminate Dimensions （mm） W 39 45 D 39.5 45.5 H 8.5 9.5 Operating temperature range −40℃ to ＋85℃ Operating life 30,000 cycles Automotive use ● ● ● Life cycle Electrical performance Total resistance （k Ω） 5 Resistance taper B Rated power 0.05W Insulation resistance 10MΩ m in. 50V DC Voltage proof 5 0V A C f or 1minute Mechanical performance Detent torque 40± 16mN･m 50±20mN･m 55±20mN･m 40± 16mN･m 40± 16mN･m Number of positions 6, 17 8, 17 17 Stopper strength 1N･m Push-pull strength 1 0 0 N（ P u s h ） , 5 0 N（ P u l l ） Vibration 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 Terminal type Insertion Page 384 385 Potentiometers Cautions Potentiometers Resistance Taper Notes 1. The operating temperature range for automotive applications can be raised upon request. Please contact us for details. 2. ● Indicates applicability to all products in the series.
(With LED) 2.5 3.722.2 2.5 19.7 9.5 3.5 V29.6 2.2 1.2 V45 V25 1.2 3.2 Mounting surface 2.5 3.722.2 2.5 19.7 9.5 3.5 V29.6 2.2 1.2 V45 V25 1.2 3.2 Mounting surface Dimensions Unit:mm No. StylePhoto PC board mounting hole dimensions （Viewed from mounting side） 3-2.2 1.2 3- 3.2 1.2 ø25 ø45 ø29.6 3.5 14.9 2.52.5 22.2 9.5 19.7 3.7 A3 2 1K 2-3.15 21.5 46.4 2-ø2.6 23 2-1.8 1.25 5-ø1.2hole ø1.5 Mounting Surface 20° RK45C (With chip LED) 3-2.2 1.2 3- ø25 ø45 ø29.6 3.5 14.9 2.52.5 22.2 9.5 19.7 3.7 A3 2 1K 2-3.15 21.546.4 2-ø2.6 23 2-1.8 1.25 5-ø1.2holes ø1.5 Mounting surface 20° 3.2 1.2 Ring Type Potentiometers Soldering Conditions Soldering surface temperature Heating time Soldering temperature Soldering time RK39A, RK45B, RK45C RK39A, RK45B, RK45C Series 350℃ max. 3s max. 1 time Tip temperature Soldering time No. of solders Preheating Dip soldering No. of solders Reference for Manual Soldering Reference for Dip Soldering 45mm Size LED Illuminated Ring TypeRK45B RK45C