The client asked which silver alloy is suitable for this product,Our engineer suggest AgSnO2 and AgCdO,
but finally we decided to use AgSnO2 because AgSnO2 is a nontoxic material, compared
to AgCdO, it has very good and stable welding resistance and arc erosion resistance.
It has better erosion resistance than AgCdO in the current range of 500 ~ 3000 A, and shows
better welding resistance than AgCdO and AgNi under lamp load and capacitive load. While
under AC resistive load, the contact resistance of AgSnO2 is a little higher than that of AgCdO.
Now we are making samples for the customer.