Specifications of FR4 Epoxy.

Status
Not open for further replies.
A

antennadesign54321

Member level 1
Joined
Nov 14, 2010
Messages
34
Helped
1
Reputation
2
Reaction score
0
Trophy points
1,286
Activity points
1,530
Hi ,
I would like to know what are the FR4 PCB's available in the market with permittivity & height. Please let me know lower,higher value of both.

thanks a lot
 

Beware that there are many different suppliers, which are interchanged by the PCB manufacturers frequently for cost reduction. Ans all have different dielectric constant and loss tangent. So in short you can only use FR4 in case you can live with these larger variations by taking it into account during the design phase.
 

hi
there are different widths for example:0.8mm,1.2mm,2mm and etc
I see that setting the εr=4.4 can be practical
tand=0.02
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…