EC21A 21mm Size Ring Type EC21C Ring encoder with 4mm height contribute to space saving and multifunctioning Typical Specifications Items Specifications Encoders Rating 10mA 5V DC Operating life 50,000 cycles Operating temperature range -40 to 85 Metal Shaft Product Line Structure Actuator lengthmm Detent torque mNm 75 Insulated Shaft 9 167 Dip Hollow Shaft 12 Number of pulse 30 Minimum order unitpcs. Japan Export 15 600 1,200 18 9 240 480 600 1,200 640 640 30 15 125 18 9 178Initial,12 - 74After reflow 30 15 15 Reflow Number of detent Product No. No. EC21A1540401 1 EC21A1520401 EC21A0920401 2 EC21A1520407 3 EC21A0950402 4 EC21C1520402 5 Packing Specifications Tray Ring Type Number of packagespcs. 1 case /Japan 1 case /export packing Export package measurements mm EC21A0920401 240 480 285x375x223 EC21A15 600 1,200 364x508x192 EC21A1520407 EC21A0950402 600 1,200 360x540x290 EC21C 640 640 310x400x185 Product No. Dimensions No. Photo Unit:mm PC board mounting hole dimensions (Viewed from mounting side) Style 23 .6 90 2.6 C .2 16 22.3 23.6 1 90 6 2. A 1.5 B 5 3-o1 holes Do not wire the shaded area 302 Refer to P.315 for soldering conditions. EC21A/EC21C21mm Size Ring Type Dimensions Style C 1.8 12 0 23.6 21.6 o15.4 3-2 2. 2 6 .6 23.6 23.6 3-2.1 3-2.1 21.6 21.6 120 0 3300 2-2.65 2-2.65 55 3-1 -1. 53 5 6 2. 4- 2. 6 42-2.65 23.6 1.55 2 23.6 2-2.65 12 2.1 2.1 0120 21.621.6 4-3.05 le 22.3 6 .2 23 2- 2. .6 2-2.65 90 30 B 4- 2. .8 10 2-8 1 12 6 23.6 2-1.55 5 1.0 s le 3- ho 5 .55 0 3-2.05 22 3-3 5 4-4.1 .6 16 2- 5 8.1 4-3.05 15.4 3-2.05 3-2.05 8.1 o12.2 4-3.05 4-3.05 15.4 15.4 3-2.05 3-2.05 C 0. 3 15.4 2-2.5 2-2.5 3 8.1 2.5 2-2.5 3-1.45 2-2.5 3-1.45 12 ho 0 12 .2 5 .5 21 3-2.1 15.4 le1 ho h Do not wire the shaded area 120 2-1.45 2-0.95 0.8 55 1. 0. .6 C .2 23 6 26. .2 -1 2 5 1.0 3- ole 5 1 C A 16 2-1.55 1.7 .3 12 2- 90 2-1.55 1.7 16 12 C0.2 0 90 5 1.0 3-hole 5 5 2-2 X X B1 2-8 Y .62 5 7 3 16 23 0 B 22.3 2- 0 12 120 A A 12 12 2-1.6 0.8 6 6 2. 2. 2- 2- X X 0 Ring Type 5 16 C 3-0 Mounting surface 4 22.3 Y 2-8 Y 2 5 Do not wire the shaded area C 12 Hollow Shaft 8 .62 1 Insulated Shaft 8 3-0 20 1 4 Y .8 10 8 0. Mounting surface surface 0 12 3 ho 5 2-1.5 Mounting .62 2-1.5 4 3-0 15 15 14.5 14.5 4 3-8 3-8 3 6-C0.2 3 6-C0.2 3-3 3-3 5 1.0e 05 3- hol1. e 5 - l 10. 1 2-8 2-8 3.5 9090 2-1.55 2-1.55 10. 1 3.5 .6 B 16 0 .2 A 12 .6 0 B 6 2. 6 2- -2. 2 12 23 .2.2 1212 A 2- 120 16 3 C 2- 3-C0.3 120 C .22- 0 12 le 23 0 12 ho 22.3 2- 3-C0.3 15 3 .5 22.3 1 6. 16 3 .3 14.5 3-8 14.5 3-8 4 3 3-1.5 o1 3-o1 hole Do not wire the shaded area Mounting surface 3-1.5 B 5 5 Mounting surface 3.5 4 6 2. A 2 o10.8 1 90 Metal Shaft 4- 2-8 3.5 C 2 4-4 0 12 B A 2. 15 .2 .6 90 120 2 1.5 23 16 2 1 2 .6 16 1.55 Mounting surface 20 22.3 21 2.6 3 .55 9 Encoders 4 0.7 3.5 3-1 Photo 3-2 No. Unit:mm PC board mounting hole dimensions (Viewed from mounting side) 303 EC21A 21mm Size Ring Type EC21C Sliding Noise V1=V2=2.5V max. Encoders R A signal OFF B signal CW direction Metal Shaft Insulated Shaft Hollow Shaft Ring Type 304 Test circuit ON OFF Detent stability position Detent position cannot be specified for B signal. t R Terminal A ON Output waveform 5V DC Terminal B t V1 5V Output Wave V2 Encoder ON Terminal C Measurement conditionRotation speed 360/s OFF ON Sliding direction t : Masking time to avoid chattering At R = 5k Chattering : 5ms max. Bounce : 5ms max. Encoders List of Varieties Ring type Type 21mm size EC21A Series 28mm size EC21C EC28A 35mm size EC28C EC35A EC35AH NEW Photo Encoders Incremental Two phase A and B Output Shaft types Ring type Number of pulse / Number of detent 9/18 15/30 Metal Shaft W Dimensions mm Incremental Three phase A, B and C D 21.6 15/30 15/30 18/18 22 28 28 21.6 29 29.5 H 6xABC/18 10xABC/30 15/30 35 4 Insulated Shaft Operating temperature range 4.5 -40 to 85 -40 to 90 Operating life -40 to 85 50,000 cycles Automotive use Hollow Shaft Life cycle (availability) Rating 10mA 5V DC Ring Type Max./min. operating Electrical currentResistive load performance Insulation resistance Mechanical performance 10mA / 1mA 100M min. 250V DC Voltage proof 300V AC for 1minute or 360V AC for 2s 300V AC for 1minute or 360V AC for 1s 300V AC for 1minute or 360V AC for 2s 300V AC for 1minute or 360V AC for 1s Detent torque 75mNm 125mNm 167mNm 178mNm Initial 7 12 - 4 mNm After reflow 75mNm 127mNm 2010mNm 3015mNm Initial 2010mNm After reflow Push-pull strength Push 300V AC for 1minute or 360V AC for 2s 187mNm 3015mNm 125mNm 187mNm 3015mNm 100N Pull 100N Shaft configuration Ring type Terminal type Insertion Switch type -- -- -- -- -- -- Contact arrangement -- -- -- -- -- -- Travelmm -- -- -- -- -- -- Operating forceN -- -- -- -- -- -- -- -- -- -- -- -- Rotational torque -- -- -- -- -- -- Rating -- -- -- -- -- -- Contact resistance -- -- -- -- -- -- Operating life -- -- -- -- -- -- 307 308 Switch Specifications Switch ON position Page 302 305 Encoders Soldering Conditions 315 Encoders Cautions 316 Note Indicates applicability to all products in the series. 272 Encoders Soldering Conditions Reference for Manual Soldering Series Soldering time No. of solders EC05E, EC09E, EC10E, EC111, EC11B, EC11E, EC11G, EC11K, EC12D, EC12E, EC18A, EC21A, EC28A, EC35A, EC35AH, EC35B, EC40A, EC45A, EC50A, EC60B, EM11B, EM20B, EC21C, EC28C, EC35CH 350 max. 3s max. 1 time EC11J 35010 3 1 s 0 2 times Encoders Tip temperature Reference for Dip Soldering Dip soldering No. of solders Heating time Soldering temperature Soldering time EC09E, EC11B, EC111, EC11E, EC11G, EC11K, EC18A, EC21A, EC28A, EC35A, EC35AH, EC35B, EC50A, EC60B 100 max. 2 min. max. 2605 51s 2 times max. EC10E, EC12D, EC12E, EM11B 100 max. 1 min. max. 2605 31s 2 times max. EC40A 110 max. 1 min. max. 260 max. 10s max. 1 time 100 max. 2 min. max. 260 max. EM20B 80 max. 1 min. max. 260 max. 3s max. 2 times max. 2 times max. Ring Type Example of Reflow Soldering Condition Temperature profile 300 Temperature (C ) Hollow Shaft EC45A 5s max. Insulated Shaft Soldering surfacetemperature Metal Shaft Preheating Series A B 200 C D 100 Room temperature Time (s) Pre-heating E max. F max. G max. H max. Series A B C D E F G H No. of reflows EC11J 260 230 180 150 2 min. max. 3s 40s 4 min. max. 2 times max. EC05E 250 min. 230 min. 180 150 60s to 120s 30s to 40s 2 times max. EC21C 230 to 245 220 200 150 60s to 120s 25s to 60s 300s max. 1 time max. 260 230 180 150 2 min. min. 3s 40s 230s max. 1 time max. EC28C, EC35CH 1. When using an infrared reflow oven, solder may sometimes not be applied. 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 size 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. 315