Embossed Carrier Tape- JiuShuo

1. Formula for calculating the number of marbles and the length in meters 

(1) The number of pieces per roll packaging = (wrapping area divided by (K0 + t) divided by P) * 0.9 

(2) The number of meters wrapped per roll = (the number of pieces per roll x P) / 1000 + 1

(3) The wrapped area = πR2 - πr2 

(4) The commonly used rim diameter is 13", inner diameter is 100, then the winding area is 77,677. 

(5) The number of pieces per roll packaging = (77677 / (K0 + t) / P) * 0.9 

2. Determination of carrier tape related dimensions 

(1) The P-value is a multiple of 4 and greater than the maximum dimension of the same direction component by 2mm. 

(2) K0 is the maximum dimension of the same direction parts plus 0.30mm. 

(3) t is the thickness of the tape carrier, which is usually chosen to be 0.40mm or 0.50mm. The larger the value of t, the thicker the tape carrier will be.