282 heavy torque and comfortable operation feel for encoder and potentiometer applications 20mm size metal shaft type ec20a rk203 product line vertical flat encoders 30 4020 with 1. 5 18 18 ec20a1824401 without ` ec20a1820401 400 800 product no. 1 2 drawing no. minimum order unit pcs. japan export number of detent number of pulse shaft configuration length of the shaft mm push-on switch travel of push-on switch mm operating direction detent torque m n?m flat potentiometer 30 4020 17 220 vertical single- unit 10 1b RK203111000V 800 800 product no. 3 drawing no. minimum order unit pcs. japan export number of detent rotational angle mounting direction number of resistor elements total resistance k ? resistance taper shaft configuration length of the shaft mm detent torque m n?m typical specifications items specifications encoder potentiometer rating 1ma 5v dc 0.05w operating life 30,000 cycles operating temperature range ?30 to +80 ?40 to 85 dimensions photo no. style pc board mounting hole dimensions viewed from mounting side unit:mm ec20a with push-on switch travel 1.5mm encoder type 1 10 1.5 10 12 30 switch travel ?6 4.5 c1 2.5 3.5 mounting surface 3.5 1.5 1.5 9 ?20.2 19.2 8.3 15.5 ?3 3?1 m9g0.75 d e nc nc nc b a c d e (sw02) (sw01) (17.8) 2-0.9 number of packages pcs. export package measurements mm 1 case /japan 1 case /export packing 400 800 374508272 packing specifications tray refer to p.284 for attached parts. refer to p.284 for switches. refer to p.307 for soldering conditions. 1. only the encoder type can be supplied with a push-on switch. 2. shaft design and other features are customizable. notes encoders metal shaft insulated shaft hollow shaft ring type
283 ec20a / rk20320mm size metal shaft type 1.5 10 30 12 4.5 ?6 2.5 3.5 3.5 8 c1 m90.75 3-1 ( 17.8 ) 15.5 19.2 8.3 ?3 1.5 9 1 nc nc nc nc nc 3 2 ?20.2 mounting surface rk203 without switch type potentiometer type 3 ec20a without switch type encoder type 2 1.5 10 30 12 2.5 3.5 3.5 8 m9g0.75 4.5 ?6 c1 3-1 ( 17.8 ) ?20.2 15.5 19.2 8.3 ?3 1.5 9 nc nc nc b a c mounting surface dimensions photo no. style pc board mounting hole dimensions viewd from mounting side unit:mm output wave ec20a output wave ec20a v 1 =v 2 =2.5v max. at r 5k chattering : 8 ms max. bounce : 5 ms max. 5v dc rr terminal b terminal a terminal c encoder test circuit tt v 1 v 2 5v on onoff output waveform sliding direction t : masking time to avoid chattering . f b t v s f n f o u d p o e j u j p o 3 p u b u j p o t q f f e ?/s detent position cannot be specified for b signal. encoders metal shaft insulated shaft hollow shaft ring type
284 the following parts are included with the product. nut washer 11 m9 0.75 2 ?14 ?9.1 0.5 20mm size metal shaft type / attached parts 20mm size metal shaft type / switch specifications switch type momentary push switch contact arrangement single pole and single throwpush-on travelmm 1.50.5 operating force 42n operating life 20,000 times electrical performance rating 0.5a 16v dc (1ma 16v dc min. ratings contact resistance 100m max. for initial period,200m max. after operating life. insulation resistance 100m min. 250v dc voltage proof 300v ac for 1 minute or 360v ac for 2s unit:mm circuit diagram rk203 2 3 1 20mm size metal shaft type ec20a rk203 encoders metal shaft insulated shaft hollow shaft ring type
type metal shaft 11mm size 20mm size series ec111 ec11k ec11j em11b ec20a/rk203 em20b photo output self-return switch incremental two phase a and b shaft types single-shaft operating direction vertical number of pulse / number of detent 9 /18 15 / 3 0 16 /16 18 /18 40/40 features surface mount type magnetic type magnetic type dimensions mm w 11 . 7 10 . 8 20.2 20 d 13 12 14 . 2 11 19 . 2 22.25 h 5 4.5 7. 5 10 13 operating temperature range ?40 to +85 ?30 to +85 ?30 to +80 ?10 to +70 operating life 15,000 cycles 100,000 cycles 1,000,000 cycles 30,000 cycles 500,000 cycles automotive use life cycle (availability) electrical performance rating 10 m a 5 v d c 10 m a 5 v5 % d c 1m a 5 v d c 10 m a 5 v5 % d c max./min. operating current resistive load 10ma / 1ma 15ma / ? 1 5ma / ? insulation resistance 10 0 m m i n . 2 5 0 v d c 10 0 m m i n .10 0 v d c 10 m m i n . 5 0 v d c 10 0 m m i n . 2 5 0 v d c voltage proof 300v ac for 1 minute or 360v ac for 2s 300v ac for 1 minute or 360v ac for 1s 250v ac for 1 minute or 300v ac for 2s 50v ac for 1 minute or 60v ac for 2s 300v ac for 1 minute or 360v ac for 2s mechanical performance rotational torque without detent 3 to 30mn?m 7mn?m max. detent torque 12 5 m n?m 125mn?m initial 124mn?m after reflow 105 m n?m 4 020mn?m 85mn?m push-pull strength 10 0 n shaft configuration flat, slotted, serrated flat terminal type insertion reflow insertion switch specifications switch type push-on switch contact arrangement single pole and single throw push-on travel mm 0.50.3 1.50.5 0.50.3 1.50.5 0.50.3 1.50.5 0.5 1.50.5 0.5 operating force n 6 42 52 42 52 42 5.53 42 63 rating 0.1a 5v dc 500a 5v dc min. ratings 0.1a 5v dc 0.1ma 5v dc min. ratings 5ma 5v dc 50ma 12v dc max. ratings 0.5a 16v dc 1ma 16v dc min. ratings 3 a 16 v d c 10ma 16v dc min. ratings contact resistance 100m max. for initial period, 200m max. after operating life. 500m max. for initial period, 5m max. after operating life. 100m max. for initial period, 200m max. after operating life. operating life 20,000 times 1,000,000 times 100,000 times 1,000,000 times 100,000 times 1,000,000 times 20,000 times 25,000 times page 269 280 282 285 encoders soldering conditions ????????????????????????????????????????????????? 307 encoders cautions ???????????????????????????????????????????????????????? 308 note indicates applicability to all products in the series. 263 2.5 ? 2 0.4 ? 0.3 0.3 ? 0.2 new encoders metal shaft insulated shaft hollow shaft ring type
307 soldering surfacetemperature soldering temperature heating time soldering time no. of solders ec10e, ec12d, ec12e, em11b ec45a ec40a em20b ec09e, ec11b, ec111, ec11e, ec11g, ec11k, ec18a, ec21a, ec28a, ec35a, ec35ah, ec35b, ec50a, ec60b series 10 0 m a x . 2605 2 min. max. 5 1s 2 time max. 10 0 m a x . 10 0 m a x . 11 0 m a x . 80 max. 2605 260 max. 260 max. 260 max. 1 min. max. 2 min. max. 1 min. max. 1 min. max. 3 1s 5s max. 10 s m a x . 3s max. 2 time max. 2 time max. 1 time 2 time max. preheating dip soldering reference for dip soldering example of reflow soldering condition reference for manual soldering ec05e ec21c ec11j series 260 230 18 0 15 0 2 min. max. 3s 40s 4 min. max. 2 time max. 250 min. 230 to 245 230 min. 220 18 0 200 15 0 15 0 60s to 120s 60s to 120s ` ` 30s to 40s 25s to 60s ` 300 max. 2 time max. 1 time max. a b c d e f g h no. of reflows temperature profile 1. when using an infrared reflow oven, solder may sometimes not be ap plied. 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 encoder when employing a hot air reflow method. the temperature of the pc board and the surface temperature of the encoder may vary greatly depending on the pc board material, its siz e and thickness. ensure that the surface temperature of the encoder 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. ?? 300 200 100 a b c time (s) g max. f max. h max. e max. room temperature temperature (?c ) pre-heating d encoders soldering conditions 3 s ec11j ec05e, ec09e, ec10e, ec111, ec11b, ec11e, ec11g, ec11k, ec12d, ec12e, ec18a, ec21a, ec28a, ec35a, ec35ah, ec35b, ec40a, ec45a, ec50a, ec60b, em11b, em20b, ec21c series 350 max. 3s max. 1 time 3 5 0 10 2 time tip temperature soldering time no. of solders 1 0 encoders metal shaft insulated shaft ring type hollow shaft
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