d a t a sh eet product speci?cation supersedes data of november 1997 file under ferrite ceramics, ma01 1999 dec 23 ferrite ceramics e38/8/25 planar e cores
1999 dec 23 2 philips components product speci?cation planar e cores e38/8/25 cores effective core parameters of a set of e cores symbol parameter value unit s (i/a) core factor (c1) 0.272 mm - 1 v e effective volume 10200 mm 3 i e effective length 52.6 mm a e effective area 194 mm 2 m mass of core half ? 25 g handbook, halfpage cbw409 38.1 0.76 30.23 min. 4.45 0.13 25.4 0.51 r0.64 ref. typ. r0.81 ref. typ. r0.64 ref. typ. 8.26 0.13 7.6 0.2 fig.1 e38/8/25 core half. dimensions in mm. effective core parameters of an e/plt combination ordering information for plates symbol parameter value unit s (i/a) core factor (c1) 0.226 mm - 1 v e effective volume 8460 mm 3 i e effective length 43.7 mm a e effective area 194 mm 2 m mass of plate ? 18 g grade type number 3c90 plt38/25/4-3c90 3f3 plt38/25/4-3f3 3f4 plt38/25/4-3f4 handbook, halfpage cbw410 38.1 0.76 25.4 0.51 3.81 0.13 r0.64 ref. typ. fig.2 plt38/25/4. dimensions in mm.
1999 dec 23 3 philips components product speci?cation planar e cores e38/8/25 core halves for use in combination with an e core a l measured in combination with a non-gapped core half, clamping force for a l measurements, 40 15 n, unless stated otherwise. note 1. measured in combination with an equal gapped core half, clamping force for a l measurements, 40 15 n. core halves for use in combination with a plate (plt) a l measured in combination with a plate (plt), clamping force for a l measurements, 40 15 n. grade a l (nh) m e air gap ( m m) type number 3c90 250 3% (1) ? 54 ? 1100 e38/8-3c90-e250-e 315 3% (1) ? 68 ? 850 e38/8-3c90-e315-e 400 3% (1) ? 86 ? 650 e38/8-3c90-e400-e 630 5% ? 136 ? 400 e38/8-3c90-a630-e 1000 10% ? 216 ? 250 e38/8-3c90-a1000-e 7940 25% ? 1720 ? 0 e38/8/25-3c90 3f3 250 3% (1) ? 54 ? 1100 e38/8-3f3-e250-e 315 3% (1) ? 68 ? 850 e38/8-3f3-e315-e 400 3% (1) ? 86 ? 650 e38/8-3f3-e400-e 630 5% ? 136 ? 400 e38/8-3f3-a630-e 1000 10% ? 216 ? 250 e38/8-3f3-a1000-e 7250 25% ? 1570 ? 0 e38/8/25-3f3 3f4 250 3% (1) ? 54 ? 1100 e38/8-3f4-e250-e 315 3% (1) ? 68 ? 850 e38/8-3f4-e315-e 400 3% (1) ? 86 ? 650 e38/8-3f4-e400-e 630 5% ? 136 ? 400 e38/8-3f4-a630-e 1000 10% ? 216 ? 250 e38/8-3f4-a1000-e 3880 25% ? 840 ? 0 e38/8/25-3f4 grade a l (nh) m e air gap ( m m) type number 3c90 250 3% ? 45 ? 1100 e38/8-3c90-a250-p 315 3% ? 57 ? 850 e38/8-3c90-a315-p 400 3% ? 72 ? 650 e38/8-3c90-a400-p 630 5% ? 113 ? 400 e38/8-3c90-a630-p 1000 10% ? 180 ? 250 e38/8-3c90-a1000-p 9290 25% ? 1670 ? 0 e38/8/25-3c90 3f3 250 3% ? 45 ? 1100 e38/8-3f3-a250-p 315 3% ? 57 ? 850 e38/8-3f3-a315-p 400 3% ? 72 ? 650 e38/8-3f3-a400-p 630 5% ? 113 ? 400 e38/8-3f3-a630-p 1000 10% ? 180 ? 250 e38/8-3f3-a1000-p 8500 25% ? 1520 ? 0 e38/8/25-3f3
1999 dec 23 4 philips components product speci?cation planar e cores e38/8/25 properties under power conditions 3f4 250 3% ? 45 ? 1100 e38/8-3f4-a250-p 315 3% ? 57 ? 850 e38/8-3f4-a315-p 400 3% ? 72 ? 650 e38/8-3f4-a400-p 630 5% ? 113 ? 400 e38/8-3f4-a630-p 1000 10% ? 180 ? 250 e38/8-3f4-a1000-p 4600 25% ? 830 ? 0 e38/8/25-3f4 core combination b (mt) at core loss (w) at h = 250 a/m; f = 10 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 f = 1 mhz; =30mt; t = 100 c f = 3 mhz; = 10 mt; t = 100 c e+e38-3c90 3 320 1.25 1.25 --- e+plt38-3c90 3 320 1.05 1.05 --- e+e38-3f3 3 320 - 1.20 2.00 -- e+plt38-3f3 3 320 - 1.00 1.65 -- e+e38-3f4 3 250 --- 3.00 3.50 e+plt38-3f4 3 250 --- 2.50 2.90 grade a l (nh) m e air gap ( m m) type number b ? b ? b ? b ? b ?
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