Ⅰ: Code of product series: three-digit

      150: series150 with LED

Ⅱ: Product serial no: double-digit

      00~99

Ⅲ: Height(Free Position): double-digit

      45: FP=4.5             50: FP=5.0

      60: FP=6.0      70: FP=7.0

    72: FP=7.2         82: FP=8. 2

   86: FP=8.65          95: FP=9.5

Ⅳ: Operation force: double-digit

      09: 90gf       10: 100gf 

   13: 130gf     16: 160gf   

   18: 180gf     20: 200gf

   25: 250gf

Ⅴ: Fixed method: single-digit

      0: SMT, type "一" terminal

      1: SMT, type "Z" terminal

      2: SMT, type "V"  terminal

      3: DIP, type "S"  terminal

      4: DIP, type "八" terminal

      5: DIP, direction of switch function and

          mounting pin is vertical

      6: SMT, with a grounding terminal on the housing

Ⅵ: LED color: single-digit

      1: red         2: yellow      3: green

      4: blue       5: white

Ⅶ: Type of button: single-digit

      0: without button    1: square

      2: round                 3: square with lens

      4: soundness with lens

Ⅷ: Figure of button: single-digit

      1: No Figure

      2: with""

      3: with""

      4: with""

      5: with""

      6: with" RESET"

 Ⅸ: Derivative code: double-digit

       00~99

Ⅹ: Package: single-digit

      0=plastic bag      

      1=shrinked plastic bag

      2=tape package 

      3=tube package

      4=foam package  

      5=undeterminedl

      6=plastic  bag without Halogen

      7=shrinked plastic bag without Halogen

      8=tape package without Halogen

      9=tube and foam package without Halogen