FR-4 A1 level CCL
This level is mainly used in military industry, communications application, computers, digital circuits, industrial instrumentation, automotive circuits and other electronic products. The quality of product fully meets the highest world-class level, best performance of the product.
FR-4 A2 level CCL
This level is mainly used for ordinary computers, instruments, household electrical appliances and general advanced electronic products. This series CCL are used widely, their performance can meet the general needs of industrial electronic products, very nice costs-effective. It enables customers to effectively improve price competitiveness with acceptable quality.
FR-4 A3 grade CCL
This level of the CCL is dedicated to household electrical appliances, computer peripheral products and general electronic products (such as toys, calculators, electrical games machines, etc.). This level CCL can meet the given requirements, and price is highly competitive.
FR-4 A4 grade CCL
This level of the CCL belongs to the low-end CCL material. But still meet the performance needs of ordinary household electrical appliances, computers and general needs of electronic products, the most competitive price CCL, cost performance is quite good.
FR-4 CCL Class B
This level of the CCL is relatively low quality, poor quality stability, because size is not stable, it can not apply to larger size circuit board, generally applicable to size less of 100mmX200mm circuit products. It’s the most affordable price CCL, but should pay attention when choosing.
