1997 nov 21 369 philips components product speci?cation etd cores and accessories etd49 core sets effective core parameters symbol parameter value unit s (i/a) core factor (c1) 0.534 mm - 1 v e effective volume 24000 mm 3 i e effective length 114 mm a e effective area 211 mm 2 a min minimum area 209 mm 2 m mass of core half ? 62 g handbook, halfpage mgc270 24.7 0.2 49.8 36.1 0 2.2 16.7 0 0.6 16.7 0 0.6 1.8 0 17.7 0.8 0 fig.1 etd49 core half. dimensions in mm. core halves clamping force 50 20 n. gapped cores are available on request. properties of core sets under power conditions grade a l (nh) m e air gap ( m m) type number 3c30 3400 25% ? 1550 ? 0 etd49-3c30 3c85 4200 25% ? 1950 ? 0 etd49-3c85 3c90 4200 25% ? 1950 ? 0 etd49-3c90 3f3 3900 25% ? 1800 ? 0 etd49-3f3 grade b (mt) at core loss (w) at h = 250 a/m; f=25khz; 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 3c30 3 360 2.7 3.1 - 3c85 3 320 3.4 4.0 - 3c90 3 330 2.7 3.1 - 3f3 3 320 - 3.0 5.4 b ? b ? b ?
1997 nov 21 370 philips components product speci?cation etd cores and accessories etd49 coil formers general data 20-pins etd49 coil former winding data for 20-pins etd49 coil former parameter specification coil former material polybutyleneterephtalate (pbt), glass-reinforced, ?ame retardant in accordance with ul 94v-0 ; ul ?le number e45329(r) pin material copper-tin alloy (cusn), tin-lead alloy (snpb) plated maximum operating temperature 155 c, iec 85 class f resistance to soldering heat iec 68-2-20 , part 2, test tb, method 1b, 350 c, 3.5 s solderability iec 68-2-20 , part 2, test ta, method 1 number of sections winding area (mm 2 ) minimum winding width (mm) average length of turn (mm) type number 1 273 32.7 85 cph-etd49-1s-20p handbook, full pagewidth 4 5.08 45.72 57.2 max. 32.7 min. 40.64 50.1 min. 54.5 max. 40.6 max. 5.08 5.08 0.8 cbw277 1.6 + 0.15 0 17 + 0.3 0 35.2 0 - 0.3 35.9 0 - 0.2 ? 19.2 0 - 0.3 fig.2 etd49 coil former; 20-pins. dimensions in mm.
1997 nov 21 371 philips components product speci?cation etd cores and accessories etd49 mounting parts general data item remarks figure type number mounting clip material: stainless steel 3 cli-etd49 handbook, halfpage mgc272 16.5 33 53.5 min 10.8 0.4 fig.3 mounting clip for etd49. dimensions in mm.
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