Ferroxcube EFD cores and accessories EFD20 General data PARAMETER SPECIFICATION Coi l former m ater ial liquid crystal polymer (LCP), glass reinforced, flame retardant in accordance with “UL 94V-0”; UL file number E54705 Pin m ater ial copper-tin alloy (CuSn), tin-lead alloy (SnPb) plated Maximum ope ratin g tem peratur e 155 °C, “IEC 60085”, class F Resi stan ce to so ld erin g heat “IEC 60068-2020”, Part 2, Test Tb, method 1B: 350 °C, 3.5 s Solde rabil it y “IEC 60068-2020”, Part 2, Test Ta, method 1: 235 °C, 2 s Winding data NUMBER OF SECTIONS WINDING AREA (mm 2) MINIMUM WINDING WIDTH (mm) 1 27.7 13.5 AVERAGE LENGTH OF TURN (mm) 34.1 TYPE NUMBER CPHS-EFD20/7-1S-10P