RK45B 45mm Size LED Illuminated Ring Type RK45C This LED illuminated ring potentiometer is best suited for knob design of various set devices ■ Typical Specifications Specifications RK45B RK45C Items Contact resistance ±20% Maximum operating voltage 50V AC, 30V DC Operating life 220° ±5° (Customizable up to 290°) 30,000 cycles Slide Potentiometers Operating temperature range −40℃ to ＋85℃ Product Line Total resistance Resistance taper Number of positions Rotational angle 8 Detent torque （mN・m） LED Minimum order unit（pcs.） Japan 55±20 180° ±5° 5kΩ Export 200 B Red 1 RK45B1A00002 200 40±16 400 220° ±5° RK45B1A00001 Drawing No. RK45C1A00003 2 Metal Shaft 17 Product No. Rotary Potentiometers 180° ±5° (Customizable up to 270°) Detent torque Notes Insulated Shaft 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. Packing Specifications Number of packages（pcs.） 1 case / export packing Export package measurements（mm） RK45B 200 200 540×360×205 RK45C 200 400 540×360×380 Ring Type 1 case / Japan Products No. Knob Operating Tray Refer to P.386 for soldering conditions. 385 RK45B 45mm Size LED Illuminated Ring Type RK45C Dimensions Photo Style RK45B (With LED) Mounting surface Mounting surface 24 V2 5 22.2 3.7 3.2 3.2 1.2 1.2 2.5 3.7 19.7 2.5 19.72.5 2.5 9.5 9.5 V4 2.2 1.2 5 V4 2.2 1.2 5 5 V29.6 24 23 23 3.5 32 Mounting Surface 14.9 9.5 1.2 2.5 ø29.6 23 10 5 K1 2 3 A 1.246.4 hole 5 K1 2 3 A 10 Ring Type Ring Type Potentiometers Soldering Conditions Reference for Manual Soldering Series Tip temperature Soldering time No. of solders RK39A, RK45B, RK45C 350℃ max. 3s max. 1 time Reference for Dip Soldering Series RK39A, RK45B, RK45C 386 Preheating Dip soldering Soldering surface temperature Heating time Soldering temperature Soldering time 100℃ max. 2min. max. 260℃ max. 5s max. .6 2-ø2 5-ø 3.5 22 2-1.8 21.5 2-3.15 3 ø29.6 24 3.5 23 46.4 2-3.15 24 23 3-1.2 3-2.2 3- 1.2 .6 2-ø235 .5 Knob Operating 22 2-1.8 ø1 5 5 35 23 3 ø2 Insulated Shaft ø4 2 3.7 19.7 .5 2.5 No. of solders 2 time max. 21.5 1.2 3.2 5 Mounting 3.7 surface 2.5 20° 5 ø4 2.5 ø1 24 ø2 Metal Shaft 3.2 22.2 19.7 14.9 9.5 22.2 1.25 24 20° RK45C (With chip LED) 3-2.2 3.5 32 1.25 Slide Potentiometers V29.6 3 1 24 Rotary Potentiometers V2 22.2 24 3 No. Unit:mm PC board mounting hole dimensions （Viewed from mounting side） 5-ø 1.2h oles Ring Type Potentiometers List of Varieties Type 39mm size Series 45mm size RK39A RK45B RK45C Single-unit Single-unit Single-unit Photo Features 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 ● ● Slide Potentiometers W Rotary Potentiometers Dimensions （mm） LED illuminate ● Metal Metal Shaft Shaft Life cycle Resistance taper B Rated power 0.05W Insulation resistance 10MΩ min. 50V DC Voltage proof 50V AC for 1minute Knob Operating Knob Operating 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 100N（Push） , 50N（Pull） 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 Page Ring Ring Type Type Mechanical performance 5 Insulated ShaftShaft Insulated Electrical performance Total resistance（k Ω） Insertion 384 385 Ring Type Potentiometers Soldering Conditions・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 386 Potentiometers Cautions・ ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 427 Potentiometers Measurement and Test Methods・ ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 429 Potentiometers Resistance Taper・ ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 431 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. 383