ENGINEERING ANSWER
The standard and LoPro options differ in conductor-related construction details. LoPro can be useful when copper-related loss matters, but it also brings thickness and qualification considerations that need explicit review.
What to decide before release
Compare equal circuit requirements with the actual supported foil systems. Revisit the stackup model and any relevant UL requirements. Ask the supplier to quote the exact material rather than a generic low-profile alternative.
Checks to put in your design brief
- Specify exact material and foil
- Review effective construction thickness
- Measure relevant line loss
Important distinction
Do not assume LoPro inherits every qualification of the standard laminate.
Sources & basis
Material facts follow the cited source. Design checks are preliminary guidance, not supplier process instructions.