Ⅰ: Code of product series: three-digit

      123: series 123 encoder

Ⅱ: Code of cover direction: single-digit

      0: fixed part on cover is rightward

      1: fixed part on cover is leftward

      2: external fixed type

Ⅲ: Output wave: single-digit

      0: 24 clicks,12 pulses

      1: without detent, 12 pulses

      2: 30 clicks,15 pulses

      3: 15 clicks,15 pulses


      9: 18 clicks,9 pulses

Ⅳ: Code of life: single-digit

      1: 100,000 cycles    

      2: 200,000 cycles

      3: 300,000 cycles  

      5: 500,000 cycles

Ⅴ: Code of torque force: single-digit

      0: standard, 20-35gf.cm    

      1: lighter, 14-26gf.cm

      2: heavier, 30-55gf.cm      

      3: without detent

Ⅵ: Code of cable length: double-digit

      00: without cable      30: L=30mm   

      35: L=35mm             40: L=40mm    

      45: L=45mm             60: L=60mm    

      75: L=75mm             90: L=90mm   

      95: L=95mm

Ⅶ: Diameter of cable: single-digit

      0: without cable     6: 0.6mm     8: 0.8mm 

Ⅷ: Type of plug: single-digit

      0: without plug

      1: white plug, terminal pitch=2mm

      2: brown plug, terminal pitch=2mm

      3: white plug, terminal pitch=2.5mm

      4: brown plug, terminal pitch=2.5mm

      5: white receptacle

      6: brown receptacle

Ⅸ: Derivative code: single-digit

      0: without special items

      1: soldering terminal on right bends to 45°

      2: three terminals bend 90°  to internal

      3: dual moving plate structure

      4: three terminals bend 90°  to external

Ⅹ: Type of package: single-digit

      0=plastic bag         1=shrinked plastic package

      2=tape package     3=tube package

      4=foam package    5=undetermined