1999 dec 23 1 philips components product speci?cation ferrite ring cores (toroids) tn10/6/4 ring cores (toroids) effective core parameters coating the cores are coated with polyamide 11 (pa11), flame retardant in accordance with ul 94v-2 ; ul file number e 45228 (m). isolation voltage dc isolation voltage: 1000 v. contacts are applied on the edge of the ring core, which is also the critical point for the winding operation. symbol parameter value unit s (i/a) core factor (c1) 3.07 mm - 1 v e effective volume 188 mm 3 i e effective length 24.1 mm a e effective area 7.8 mm 2 m mass of core ? 0.95 g fig.1 tn10/6/4 ring core. dimensions in mm. handbook, halfpage cbw314 5.2 0.3 4.4 0.3 coating pa11 ( ? 0.3) 10.6 0.3 ring core data note 1. ring cores in 3e5 and 3e6 are lacquered (polyurethane) and have different dimensions: outside diameter = 10.25 0.4 mm; inside diameter = 5.75 0.3 mm; height = 4.25 0.3 mm; flame retardant in accordance with ul 94v-2 ; ul file number e 192048. properties of cores under power conditions grade a l (nh) m i colour code type number 4c65 52 25% ? 125 violet tn10/6/4-4c65 4a11 286 25% ? 700 pink tn10/6/4-4a11 3f3 740 25% ? 1800 blue tn10/6/4-3f3 3c90 940 25% ? 2300 ultramarine tn10/6/4-3c90 3c11 1750 25% ? 4300 white tn10/6/4-3c11 3e25 2250 30% ? 5500 orange tn10/6/4-3e25 3e5 3470 30% ? 8500 yellow/white tl10/6/4-3e5 (1) 3e6 4085 30% ? 10000 purple/white tl10/6/4-3e6 (1) grade b (mt) at core loss (w) at h = 250 a/m; f = 25 khz; t = 100 c f = 25 khz; = 200 mt; t = 100 c f = 100 khz; = 100 mt; t = 100 c f = 400 khz; =50mt; t = 100 c 3c90 3 320 0.021 0.021 - 3f3 3 320 - 0.03 0.04 b ? b ? b ?
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