Epoxy FR4 (LF) PCB, lead-free, tin-plated. 35-μm copper lamination. Hole matrix 2.54 × 2.54 mm. RE332-LF and RE333-LF double-sided, through hole plated. ∅ 2 mm soldering points, ∅ 1 mm hole. Grid for multiple contact strips DIN 41612 type C-96/abc, Materi