Ferroxcube ETD cores and accessories ETD54 COIL FORMERS General data 22-pins ETD54 coil former ITEM SPECIFICATION Coil former material polybutyleneterephtalate (PBT), glass-reinforced, flame retardant in accordance with UL 94V-0; UL file number E41613(M) Pin material copper-tin alloy (CuSn), tin-lead alloy (SnPb) plated Maximum operating temperature 155 C, “IEC 60085”, class F Resistance to soldering heat “IEC 60068-2-20”, Part 2, Test Tb, method 1B, 350 C, 3.5 s Solderability “IEC 60068-2-20”, Part 2, Test Ta, method 1 Winding data for 22-pins ETD54 coil former NUMBER OF SECTIONS 1 MINIMUM WINDING AREA WINDING WIDTH (mm2) (mm) 316 36.8 AVERAGE LENGTH OF TURN (mm) 96 TYPE NUMBER CPH-ETD54-1S-22P