Ferroxcube EFD cores and accessories EFD30 COIL FORMERS General data PARAMETER SPECIFICATION Coil former material phenolformaldehyde (PF), glass-reinforced, flame retardant in accordance with “UL 94V-0”; UL file number E167521 (M) Pin material copper-tin alloy (CuSn), tin (Sn) plated, see note 1 Maximum operating temperature 180 °C, “IEC 60085”, class H 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: 235 °C, 2 s Winding data for EFD30 coil former with 12-pins NUMBER OF SECTIONS WINDING AREA (mm2) MINIMUM WINDING WIDTH (mm) AVERAGE LENGTH OF TURN (mm) 1 52.3 20.1 52.9 Note 1. Also available with post-inserted pins. 2004 Sep 01 1 TYPE NUMBER CSH-EFD30-1S-12P-TZ; see note 1