Ⅰ: Code of product series: three-digit

      155: series 155 slide switch

Ⅱ: Circuit: double-digit

      12: 1P2T  single-pole double-throw

     13: 1P2T single-pole three

      62: 6P2T single-pole double-throw

Ⅲ: Code of operating force: double-digit

      10: 100gf    15: 150gf

Ⅳ: Color of actuator: single-digit

      1: white     2: black

Ⅴ: Method of soldering  single-digit

      0: SMT type    1: DIP type

Ⅵ: Position of actuator: single-digit

      0: side located    1: vertically located

Ⅶ: Derivative code: double-digit

      00: without special items

Ⅷ: Package: single-digit

      0=plastic bag   1=shrinked plastic package

      2=tape package   3=tube package     

      4=foam package  5=undetermined