Rigid Material

How to choose material for PCB

In order to meet the different requirements of the PCB board, From material selection, board design, to anti-jamming performance requirements , all aspects should make a reasonable choice and design, most of the time, ordinary FR4 will be able to meet the design requirements, but Some special boards need special material , and many times customer have specified board material , but for some reason we can not buy these material directly . In fact, we have the same similar performance board material instead .

The choice of board material needs to consider the manufacturability of the factory , the availability of materials, the cost and the applicability of laws and regulations.

Key data of the board material performance

• Tg value (glass transition point temperature of the material)

• Td value or T260, T288 (thermal decomposition temperature of the material)

• Er value and Tanδ (Dk and Df) (dielectric loss and dielectric loss tangent),

• Halogen content (whether halogen-free material),

• Other considerations: CAF (anode conductive wire), IST, Q1000, UL grade, CTI (leakage tracking index), Water absorption ….

Recommended board material

If any other questions, you can contact our engineers through our website or send emails to info@kingcredie.com and tell us what you want to know. Our engineers will reply at earliest time possible.