ROTARY ENCODER EC12 SERIES SPECIFICATION 

1. ELECTRICAL CHARACTERISTICS 

ITEMS 

SPECIFICATION 

1-1

Power Rating

DC 5V 0.5mA 

1-2

Insulation Resistance 

More than 10MΩ at DC 50V 1 Minute

1-3

Withstand Voltage 

1Minute at AC 50V

1-4

Sliding Noise

≤3mS (Test conditions 360°/S )

Using the C/R filter circuit  is Recommended..

1-5

Resolution

12018/24 Pulses

360° for each phase.

1-6

Phase-Difference

T=0.25±0.17 T

1-7

Output Signal And Rotational

CW direction

    A Signal

OFF

ON

Direction

    B Signal

OFF

ON

1-8

Working Temperature

-10oC~70oC

1-9

Storage Temperature

-40oC~85oC

2. MECHANICAL CHARACTERISTICS 

2-1

Total Rotation Angle

360°

2-2

Rotation Torque 

30~200gf.cm.Shaft rotatable at -10oC~+5oC.-10oC~+5oC.

2-3

Shaft Push-Pull Strength

With switch 5.1Kgf.cm

On without switch 10Kgf.cm

2-4 

Number and position Detent

12 detents(Step angle:30°±3°)

18 detents(Step angle: 20°±3°)

24 detents(Step angle: 15°±3°)

2-5

Rotational life

30,000 Cycles Min. at a speed of 600 cycles/H 

2-6

Resistance to soldering heat

Manual Soldering: Less than 300 and quicker than 3 seconds.

2-7

Nut tightening  strength

≥8.0Kgf.cm

3. PUSH-ON SWITCH SPECIFICATIONS 

3-1

Switch Circuit

Single pole and single throw (push on) 

3-2

Switch Travel   (mm)

0.5 mm

3-3

Switch Operating Force  

300  gf.cm

3-4

Switch Rating Power

DC 5V 10mA     (minimum ratings DC 5V 1mA)

3-5

Switch Contact Resistance

First period 

200mΩafter the end of useful life is reached. 

3-6

Switch Rotational Life

20,000 Cycles . 500cycles/H, Shaft push load 1kg.cm Max. 

NOTE : When the products are without switch, the above 3 items must be neglected.