MEGTRON 6 is Panasonic’s family of low-transmission-loss circuit-board materials. It is a laminate/prepreg system, not a consumer electronic device.
What to consider
The family includes variants with different glass systems and copper constructions. Select the exact part identification and matched prepreg. Evaluate the material using a channel model that includes copper roughness, via transitions and the relevant operating spectrum. Headline material values should retain their measurement conditions.
A practical review example
A low-Dk-glass variant and an E-glass variant should not be treated as interchangeable in a frozen impedance design. Ask the fabricator to identify the actual variant and provide the corresponding stackup proposal.
Checks before release
- Specify laminate and prepreg grade together.
- Retain frequency and test method with any Dk/Df value.
- Recheck impedance and loss after a material substitution.
Connect this decision to fabrication
Use the material selector to organize the initial discussion. Keep proposed values separate from the approved drawing and document the effect of any change on the rest of the construction.
- Identify the exact grade, glass style, resin content and copper foil.
- Compare Dk and Df only with their frequency and test method.
- Confirm the material system is qualified for the proposed via structure.
Technical references
MEGTRON6 material family and test conditionsReferences checked 2 October 2026. Manufacturer data describes its stated construction and is not an HDIPCB.org manufacturing commitment.