Star PCB of 3W with cup hole 1L, CCAF-04, 1.5mm, 70um, 19.9 x 21.1mm, White solder mask, ... (i.e.:ENIG) SERIALITEMTECHNICAL DATA1Layers1-16 Layers2Base-materalFR-2, CEM-1, FR-4, Metal base, Rogers...3Board thickness8~126 mil (0 ... ±10%22Insulation resistance1E + 12Ω(Normal)23Solder mask abrasion≥6H24Electric strength>1.3KV/mm25Peel Strength1.4N/mm26Thermal Shock3 x 10Sec@288ºC ...