Does Cypress have a definition for halogen-free products?
Halogens are a group of chemical elements which includes:
There is not yet a regulatory or industry standard defining the term halogen-free. Cypress is aware that the IPC 4-33 Halogen-Free Subcommittee is working on a draft which names this industry initiative low Halogen rather than Halogen-Free as the minimum quantities of chlorine and bromine are allowed, and fluorine and iodine concentrations are not restricted. For Cypress’s definition, all homogeneous materials must meet the substance restrictions set forth in Table 2 in order to be classified as low halogen (previously referred to as Halogen-Free).
Substance restrictions for low halogen products
|Substance||Limited Threshold (by weight)|
|Bromine (Br)||= 900 ppm (0.09%)|
|Chlorine (Cl)||= 900 ppm (0.09%)|
|Total concentration of|
chlorine (Cl) + bromine (Br)
|= 1500 ppm (0.15%)|
Note: This spec satisfies JS709 and IPC4101B