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This LED illuminated ring potentiometer is best suited for knob design of various set devices 45mm Size LED Illuminated Ring TypeRK45B RK45C 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 Product Line Packing Specifications Tray ■ Typical Specifications Items Specifications RK45B RK45C Contact resistance ±20% Maximum operating voltage 50V AC, 30V DC Detent torque 180° ±5° (Customizable up to 270° ) 220° ±5° (Customizable up to 290° ) Operating life 30,000 cycles Operating temperature range −40℃ to ＋85℃ Refer to P.386 for soldering conditions. RedB 180 °±5° 220°±5° 55±20 40±16 RK45B1A00001 RK45B1A00002 RK45C1A00003 Product No. Drawing No.LEDResistance taper 5kΩ Total resistance Number of positions Rotational angle Detent torque （mN・m） 200 200 400 Minimum order unit （pcs.） Japan Export Products No. Number of packages （pcs.） Export package measurements （mm）1 case / Japan 1 case / export packing RK45B 200 200 540×360×205 RK45C 200 400 540×360×380
(With LED) Dimensions Unit:mm No. StylePhoto PC board mounting hole dimensions （Viewed from mounting side） 3-2.2 1.23- 3.2 1.2 ø 25 ø 45 ø 29.6 3.5 14.9 2.52.5 22.2 9.5 19.7 3.7 A321K 2-3.15 21.5 46.4 2- ø 2.6 23 2-1.8 1.25 5- ø 1.2hole ø 1.5 Mounting Surface RK45C (With chip LED) 3-2.2 3-1.2 ø 25 ø 45 ø 29.6 3.5 14.9 2.5 ± 0.52.5 22.2 9.5 19.7 3.7 ± 0.5 Mounting surface 3.2 1.2 3-2.2 3-1.2 ø 25 ø 45 ø 29.6 3.5 14.9 2.52.5 22.2 9.5 19.7 3.7 Mounting surface 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 2.5 3.722.2 2.5 19.7 9.5 3.5 ø 29.6 2.2 1.2 ø 45 ø 25 1.2 3.2 Mounting surface 2.5 3.722.2 2.5 19.7 9.5 3.5 ø 29.6 2.2 1.2 ø 45 ø 25 1.2 3.2 Mounting surface
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.