1997 nov 21 372 philips components product speci?cation etd cores and accessories etd54 core sets effective core parameters symbol parameter value unit s (i/a) core factor (c1) 0.454 mm - 1 v e effective volume 35500 mm 3 i e effective length 127 mm a e effective area 280 mm 2 a min minimum area 270 mm 2 m mass of core half ? 90 g handbook, halfpage mgc274 20.2 0.4 27.6 0.2 54.5 1.3 18.9 0.4 41.2 1.1 18.9 0.4 fig.1 etd54 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 4100 25% ? 1580 ? 0 etd54-3c30 3c85 5000 25% ? 1950 ? 0 etd54-3c85 3c90 5000 25% ? 1950 ? 0 etd54-3c90 3f3 4600 25% ? 1800 ? 0 etd54-3f3 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 4.0 4.8 - 3c85 3 320 5.0 6.2 - 3c90 3 330 4.0 4.8 - 3f3 3 320 - 4.5 8.5 b ? b ? b ?
1997 nov 21 373 philips components product speci?cation etd cores and accessories etd54 coil formers general data 22-pins etd54 coil former winding data for 22-pins etd54 coil former parameter specification coil former material polybutyleneterephtalate (pbt), glass-reinforced, ?ame retardant in accordance with ul 94v-0 ; ul ?le number e41613(m) 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 1 316 36.8 96 cph-etd54-1s-22p handbook, full pagewidth cbw101 5.08 0.05 61.5 max. 61.4 max. 36.8 min. 4.5 5.08 ? 1 45.72 55.88 46.35 max. 19.8 + 0.25 0 3.4 + 0.15 0 1.6 + 0.15 0 39.5 0 - 0.35 ? 22 0 - 0.3 39.3 0 - 0.3 fig.2 etd54 coil former; 22-pins. dimensions in mm.
1997 nov 21 374 philips components product speci?cation etd cores and accessories etd54 mounting parts general data item remarks figure type number mounting clip material: stainless steel 3 cli-etd54 handbook, halfpage mbe946 19.3 6.8 11.7 59.7 min 42 0.4 fig.3 mounting clip for etd54. dimensions in mm.
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