High-frequency Telecommunication Power Transformer Key Specifications/Special Features:Dimensions in mm (inches): ... B, C1, C2, E1, E2, E3, F, FIG RM-4: terminal pins = 6, A=11.5, B=13.5, C1=1 ... E3=21.6, F=24, FIG=1 RM-8-1: terminal pins = 12, A=17.5, B=23.5, C1= ... E2=5.08, F=29.8, FIG=2 RM-10: terminal pins = 12, A=19.6, B=28.5, C1= ... E2=5.12, F=39.4, FIG=2 RM-12: terminal pins = 12, A=24.5, B=38.5, C1= ...