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

15/30

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

10mA 5V DC

10mA 5V±5% DC

1mA 5V DC

10mA 5V±5% DC

Max./min. operating current

（Resistive load）

10mA / 1mA

15mA / −

—

15mA / −

Insulation resistance

100MΩ min. 250V DC

100MΩ min.100V DC 10MΩ min. 50V DC

100MΩ min. 250V DC

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±5mN･m

12±5mN･m（Initial）

12±4mN･m（After reflow）

10±5mN･m

40±20mN･m

8±5mN･m

Push-pull strength

100N

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）

0.5±0.3 1.5±0.5 0.5±0.3 1.5±0.5 0.5±0.3 1.5±0.5

0.5

1.5±0.5

0.5

4±2

5±2

4±2

5±2

4±2

5.5±3

4±2

6±3

Rating

0.1A 5V DC

（500μA 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）

3A 16V DC

（10mA 16V DC min. ratings）

Contact resistance

100mΩ max. for initial period,　

200mΩ max. after operating life.

500mΩ max. for initial period,　

5mΩ max. after operating life.

100mΩ max. for initial period,　

200mΩ 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

263

＋ 2.5

− 2

＋ 0.4

− 0.3

＋ 0.3

− 0.2

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