EC21A 21mm Size Ring Type EC21C Ring encoder with 4mm height contribute to space saving and multifunctioning ■ Typical Specifications Items Encoders NEW Specifications Rating 10mA 5V DC Operating life 50,000 cycles Operating temperature range −40℃ to ＋85℃ Metal Shaft Product Line Structure Actuator length（mm） Detent torque （mN・m） 7±5 Insulated Shaft 9 Dip 16±7 15 Hollow Shaft Reflow 12 17±8（Initial）,12 ＋− 74（After reflow） Number of detent Number of pulse 30 Minimum order unit（pcs.） Product No. No. Japan Export 15 600 1,200 18 9 240 480 EC21A0920401 2 30 15 600 1,200 EC21A1520407 3 640 640 EC21C1520401 4 EC21A1540401 1 EC21A1520401 Packing Specifications Tray Ring Type Number of packages（pcs.） 1 case /Japan 1 case /export packing Export package measurements （mm） EC21A09 240 480 375×285×223 EC21A15 600 1,200 364×508×192 EC21A1520407 600 1,200 360×540×290 EC21C 640 640 310×400×185 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–ø1 holes Do not wire the shaded area 296 Refer to P.307 for soldering conditions. EC21A/EC21C／21mm Size Ring Type Dimensions Style 12 C 2 23.6 ø15.4 12 0° 3-2 0° 12 0° 12 2. 6 .55 3-1 23.6 .55 5 1.0 s φ le 3- ho 5 3-1 4- 2-1.55 .8 2-8 1 .55 5 2-2.65 30° 3-3 5 B 3-1 8.1 5 6 2. 90° 22 A φ10 φ12 .2 3-2.05 0° 12 23.6 21.6 3-2.1 3-2.1 21.6 30° 30° 2. 2 2-2.65 6 .6 2-2.65 8.1 ø12.2 4-3.05 4-3.05 15.4 3-2.05 3-2.05 2-2.5 3-φ1.45 2-2.5 3-φ1.45 15.4 4-4.1 .6 3-2.1 φ15.4 5 16 2- 2-φ1.475 2-φ0.95 0.8 .6 Sliding Noise Test circuit R OFF B signal CW direction 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 V1=V2=2.5V max. A signal .2 21 C ° 0° Output Wave 22.3 23 2- 0° 12 12 2-2 C0.2 5 .3 120 4 7 3 5 16 5 .62 2-1.6 0.8 Ring Type 12 3-0 Mounting surface 4 5 1.0e 3- hol Do not wire the shaded area 8 2-8 2 2-1.55 5 1.0e 3- hol 10. 2-8 Hollow Shaft 1 1 Insulated Shaft B 6 0° B 3-3 6 2. .8 21- 0 12 A A 3-3 2-1.55 2. 0° 90° 2- 12 90° .6 12.2 16 2.-6 12.2 16 C 2 ° C° 2- 3 3-C0.3 120 120 . 23 2-.2 3-C0.3 0° 12 0° 12 23 3-1.5 le 22.3 22.3 1166.3 .3 15 14.5 3-8 3 ho 2- 3.5 .5 Do not wire the shaded area Mounting surface Mounting surface 14.5 4 3-1.5 3-8 4 3 ø1 3–ø1 holes 8.1 2.5 21.6 5 5 ø10.8 1 6 2. B 2 4- Metal Shaft 0° 12 A B A 2-8 3.5 C 90° 2. 15 .2 90° ° 2 1.5 120 4-4 2 16 .6 .6 1.8 Mounting surface 0° 16 22.3 21 2.6 3 Encoders 9 4 23 0.7 3.5 23.6 Photo 3-2 No. Unit:mm PC board mounting hole dimensions (Viewed from mounting side) V2 Encoder ON Terminal C Measurement condition：Rotation speed 360˚/s OFF ON Sliding direction t : Masking time to avoid chattering At R = 5kΩ Chattering : 5ms max. Bounce : 5ms max. 297 Ring type Type 21mm size EC21A Series 28mm size EC21C 35mm size EC28A EC35A EC35AH EC35B NEW Photo Shaft types Ring type Number of pulse / Number of detent 9/18 15/30 D 21.6 H 15/30 15/30 18/18 22 28 21.6 29 37 4.5 12.1 50,000 cycles ● ● 30,000 cycles ● ● ● ● Rating 10mA 5V DC Max./min. operating current（Resistive load） 10mA / 1mA Insulation resistance 100MΩ min. 250V DC Voltage proof 300V AC for 1minute or 360V AC for 2s 300V AC for 1minute or 360V AC for 1s Detent torque 7±5mN･m 16±7mN･m 17±8mN･m（Initial） 12 ＋7 mN･m −4 （After reflow） Push-pull strength Ring Type Mechanical performance Hollow Shaft Life cycle (availability) Electrical performance 300V AC for 1minute or 360V AC for 2s 7±5mN･m 12±7mN･m 20±10mN･m Push 100N Pull 100N 18±7mN･m Shaft configuration Ring type Terminal type Insertion 300V AC for 1minute or 360V AC for 1s 12±5mN･m 18±7mN･m 30±15mN･m 20±10mN･m Switch type — — — — — Self-return switch Contact arrangement — — — — — Single pole and double throw Travel（mm） — — — — — 2.8±0.5 Operating force（N） — — — — — 3.8±1.5 — — — — — 15° ±5° Rotational torque — — — — — 40±25mN・m Rating — — — — — 10mA 5V DC Contact resistance — — — — — 200mΩ max. Operating life — — — — — 15,000 cycles 298 299 300 302 Switch Specifications Switch ON position Page 296 Insulated Shaft −40℃ to ＋85℃ Operating life Automotive use 15/30 35 35 4 Operating temperature range 6×ABC/18 10×ABC/30 15/30 Metal Shaft W Dimensions （mm） Encoders Incremental Incremental （Two phase A and B ）/ （ Three phase A, B and C） Self-return switch Incremental （Two phase A and B ） Output Encoders Soldering Conditions ・ ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 307 Encoders Cautions・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 308 Note ● Indicates applicability to all products in the series. 265 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 350℃ max. 3s max. 1 time EC11J 350±10℃ 3 ＋1 s 0 2 time Encoders Tip temperature Reference for Dip Soldering Dip soldering No. of solders Soldering temperature Soldering time EC09E, EC11B, EC111, EC11E, EC11G, EC11K, EC18A, EC21A, EC28A, EC35A, EC35AH, EC35B, EC50A, EC60B 100℃ max. 2 min. max. 260±5℃ 5±1s 2 time max. EC10E, EC12D, EC12E, EM11B 100℃ max. 1 min. max. 260±5℃ 3±1s 2 time max. EC40A 110℃ max. 1 min. max. 260℃ max. 10s max. 1 time EC45A 100℃ max. 2 min. max. 260℃ max. EM20B 80℃ max. 1 min. max. 260℃ max. 5s max. 2 time max. 3s max. 2 time max. Ring Type Example of Reflow Soldering Condition Temperature profile 300 Temperature (˚C ) Hollow Shaft Heating time 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 time max. EC05E 250℃ min. 230℃ min. 180℃ 150℃ 60s to 120s ー 30s to 40s ー 2 time max. EC21C 230℃ to 245℃ 220℃ 200℃ 150℃ 60s to 120s ー 25s to 60s 300 max. 1 time max. 注記 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. 307