WIRE WOUND POTENTIOMETERS 50 TYPE RA50 FEATURES JIS Meets JIS. PART NUMBER COMPOSITION RA 50 50 Y RA Single-shaft, Single-unit 20 S B Y G ME 20 S RA Wire wound Size 50 Type Operating temperature range X-55100 Y-10100 Style No descr.Panel mount type L Shaft lock type G Single-shaft, dual-unit Switch No descr.Without switch ME SPDT AC125V,A MF SPDT AC125V,A SE SPST AC125V,A SF SPST AC125V,A RoHS compliant Single-shaft, dual-unit RoHS 502 B102 x B502 Shaft length 2020mm Shaft type S Slot F Flat R Round resistance taper B Linear A Logarithm C Reverse logarithm Nominal total resistance value codedigits Resistance specification of front unit Resistance specification of rear unit LIlST OF PART NUMBERSHARDWARE COMPOSITION Specification Model Standard Switch Shaft lock RA50Y / Operating low temp. RA50YME / RA50YMF/ RA50YSE / RA50YSF/ RA50YL / HardwareP.1314 Hardware composition Nut Plain washer Spring washer Locknut 206 RA50X / Tandem RA50YG / ELECTRICAL CHARACTERISTICS Mechanical angle B 1050k A,C5010k Total resistance range Total resistance tolerance MECHANICAL CHARACTERISTICS 10, , Made to order , , End resistance R500 max. R500 0.2 0.2max. Resistance taper B Linear A Logarithm C Reverse log. Power rating B 4W40 A,C2W40 Insulation resistance 100M DC500V 100M min. Dielectric strength AC500V minute R 10 20 50 100 200 500 k k k 10k 20k 50k 1.19 1.14 0.61 0.39 0.33 0.23 0.18 0.16 0.17 0.12 0.10 0.07 Stop strength Nm min. 10.2kgfcm min. Operating temp. range -10100 X Only X type -55100 Solderability THEORETICAL RESOLUTION Resolution Single 45mNm 70.1451gfcm Tandem 70mNm 71.2707gfcm Total resistance value Nominal total resistance value Shaft torque 305 235, sec SWITCHES STANDARD Contact resistance Operating torque Operating life 0.05 Max. 147mNm Max. 1.5gkfcmMax. 10,000 With rating load 10,000 cycles ENVIRONMENTAL CHARACTERISTICS Test item Test condition Soldering heat 350, 3.5 3.5sec Rotation life 12 With half rating load Standard RR 15,000 15,000 cycles RR 500 500 cyclesOnly shaft lock type RR Load life 40 1,000 1,000 hours With rating load RR Temperature characteristic 85 hours Without load RR Low temperature exposure -10X-55, Only X type -55hours Without load RR Vibration 1055Hz RR Moisture and load life 40 9095RH 10 500 10 loading 500 hours RR 1.5mm directions for hours each, Amplitude 1.5mm Change ratio in total resistance 207 RR Unitmm RA50Y RA50X Shaft type RA50YL Shaft type CW note the terminal position 208 Unitmm RA50YSE RA50YSF RA50YME RA50YMF Shaft type SE,SF ME,MF CCW CW A C B CCW B CW A C RA50YG Shaft type CW note the terminal position 209 MOUNTING HOLE DIMENSIONS R A 5 0 Unitmm Panel mounting hole dimensions Series 210