FERROXCUBE DATA SHEET E55/28/21 E cores and accessories Supersedes data of September 2004 2008 Sep 01 Ferroxcube E cores and accessories E55/28/21 CORE SETS Effective core parameters SYMBOL PARAMETER VALUE UNIT Σ(I/A) core factor (C1) 0.350 mm−1 Ve effective volume 44000 mm3 Ie effective length 124 mm Ae effective area 353 mm2 Amin minimum area 345 mm2 m mass of core half ≈ 108 g 56.2 0 −2.1 +1.5 37.5 0 17.2 0 −0.5 handbook, halfpage 18.5 +0.8 0 27.5 ±0.3 R < 0.6 R3 21.0 0 −0.8 CBW063 Dimensions in mm. Fig.1 E55/28/21 core half. Core halves AL measured in combination with a non-gapped core half, clamping force for AL measurements 40 ±20 N, unless stated otherwise. GRADE 3C81 µe 100 ±5%(1) ≈ 28 ≈ 8740 E55/28/21-3C81-E100 160 ±5%(1) ≈ 45 ≈ 4560 E55/28/21-3C81-E160 250 ±5%(1) ≈ 70 ≈ 2500 E55/28/21-3C81-E250 315 ±5%(1) ≈ 88 ≈ 1840 E55/28/21-3C81-E315 400 ±8%(1) ≈ 112 ≈ 1360 E55/28/21-3C81-E400 ≈ 176 ≈ 780 E55/28/21-3C81-E630 630 ±10%(1) 8625 ±25% 3C90 TOTAL AIR GAP (µm) AL (nH) TYPE NUMBER ≈ 2410 ≈0 ±5%(1) ≈ 28 ≈ 8740 E55/28/21-3C90-E100 160 ±5%(1) ≈ 45 ≈ 4560 E55/28/21-3C90-E160 250 ±5%(1) ≈ 70 ≈ 2500 E55/28/21-3C90-E250 315 ±5%(1) ≈ 88 ≈ 1840 E55/28/21-3C90-E315 400 ±8%(1) ≈ 112 ≈ 1360 E55/28/21-3C90-E400 ≈ 176 ≈ 780 E55/28/21-3C90-E630 100 630 ±10%(1) E55/28/21-3C81 6300 ±25% ≈ 1760 ≈0 E55/28/21-3C90 3C91 8625 ±25% ≈ 2410 ≈0 E55/28/21-3C91 3C92 4700 ±25% ≈ 1310 ≈0 E55/28/21-3C92 3C94 6400 ±25% ≈ 1790 ≈0 E55/28/21-3C94 2008 Sep 01 435 Ferroxcube E cores and accessories AL (nH) GRADE 3C95 3F3 E55/28/21 TOTAL AIR GAP (µm) µe 8625 ±25% TYPE NUMBER ≈ 2410 ≈0 100 ±5%(1) ≈ 28 ≈ 8740 E55/28/21-3F3-E100 160 ±5%(1) ≈ 45 ≈ 4560 E55/28/21-3F3-E160 250 ±5%(1) ≈ 70 ≈ 2500 E55/28/21-3F3-E250 315 ±5%(1) ≈ 88 ≈ 1840 E55/28/21-3F3-E315 400 ±8%(1) ≈ 112 ≈ 1360 E55/28/21-3F3-E400 ≈ 176 ≈ 780 E55/28/21-3F3-E630 ≈1590 ≈0 630 ±10%(1) 5700 ±25% E55/28/21-3C95 E55/28/21-3F3 Note 1. Measured in combination with an equal gapped core half. Properties of core sets under power conditions B (mT) at CORE LOSS (W) at H = 250 A/m; f = 25 kHz; T = 100 °C f = 25 kHz; ˆ = 200 mT; B T = 100 °C f = 100 kHz; ˆ = 100 mT; B T = 100 °C f = 100 kHz; ˆ = 200 mT; B T = 25 °C f = 100 kHz; ˆ = 200 mT; B T = 100 °C f = 400 kHz; ˆ = 50 mT; B 3C81 ≥320 ≤ 9.0 − − − − 3C90 ≥320 ≤ 4.8 ≤ 5.9 − − − 3C91 ≥320 − 3C92 ≥370 − ≤ 3.8 − ≤ 27 − 3C94 ≥320 − ≤ 3.8 − ≤ 27 − 3C95 ≥320 − − ≤ 27.7 ≤ 26.4 − 3F3 ≥320 − ≤ 5.6 − − ≤ 10 GRADE ≤ 3.5 (1) Note 1. Measured at 60 °C. 2008 Sep 01 436 − ≤ 20(1) T = 100 °C − Ferroxcube E cores and accessories E55/28/21 COIL FORMERS General data for E55/28/21 coil former without pins PARAMETER SPECIFICATION Coil former material polyamide (PA6.6), glass reinforced, flame retardant in accordance with “UL 94-HB”; UL file number E41613(M) Maximum operating temperature 130 °C, “IEC 60085”, class B 3 ±0.1 (5×) 2 ±0.1 (6×) handbook, full pagewidth 5 ±0.1 21.7 +0.2 23.8 0 43.5 0 0 −0.2 −0.2 20 0 −0.2 1 ±0.1 CBW064 33.2 +0.2 0 35.7 ±0.1 17.6 +0.2 0 24.2 ±0.2 37 0 −0.2 38.8 ±0.2 Dimensions in mm. Fig.2 E55/28/21 coil former (E). Winding data and area product for E55/28/21 coil former without pins (E) NUMBER OF SECTIONS MINIMUM WINDING AREA (mm2) MINIMUM WINDING WIDTH (mm) AVERAGE LENGTH OF TURN (mm) AREA PRODUCT Ae x Aw (mm4) 1 250 33.2 116 88250 2008 Sep 01 437 TYPE NUMBER CP-E55/28/21-1S Ferroxcube E cores and accessories E55/28/21 General data for E55/28/21 coil former without pins (A) PARAMETER SPECIFICATION Coil former material polyamide (PA6.6), glass reinforced, flame retardant in accordance with “UL 94-HB”; UL file number E41938(M) Maximum operating temperature 130 °C, “IEC 60085”, class B handbook, full pagewidth 36.6 37 19 33.7 16.9 42.15 21.1 max. min. CBW065 Dimensions in mm. Fig.3 E55/28/21 coil former (A). Winding data and area product for E55/28/21 coil former without pins (A) NUMBER OF SECTIONS MINIMUM WINDING AREA (mm2) NOMINAL WINDING WIDTH (mm) AVERAGE LENGTH OF TURN (mm) AREA PRODUCT Ae x Aw (mm4) 1 277 33.7 113 97800 2008 Sep 01 438 TYPE NUMBER CP-E55/28/21-1S-A Ferroxcube E cores and accessories E55/28/21 General data for 14-pins E55/28/21 coil former PARAMETER SPECIFICATION Coil former material polyamide (PA6.6), glass reinforced, flame retardant in accordance with “UL 94-HB”; UL file number E41938(M) Pin material copper-zinc alloy (CuZn), tin (Sn) plated Maximum operating temperature 105 °C, “IEC 60085”, class A Resistance to soldering heat “IEC 60068-2-20”, Part 2, Test Tb, method 1B: 350 °C, 3.5 s Solderability “IEC 60068-2-20”, Part 2, Test Ta, method 1: 235 °C, 2 s 37.35 max. handbook, full pagewidth 19.75 35.65 max. 17.45 min. 33 21.15 min. 44.2 max. 23.7 7.4 min. 0.4 5 1.15 40.15 CBW066 43.95 max. 4.3 min. Dimensions in mm. Fig.4 E55/28/21 coil former; 14-pins. Winding data and area product for 14-pins E55/28/21 coil former NUMBER OF SECTIONS MINIMUM WINDING AREA (mm2) NOMINAL WINDING WIDTH (mm) AVERAGE LENGTH OF TURN (mm) AREA PRODUCT Ae x Aw (mm4) TYPE NUMBER 1 278 33 119 98100 CPH-E55/28/21-1S-14P-Z 2008 Sep 01 439 Ferroxcube E cores and accessories E55/28/21 MOUNTING PARTS GENERAL DATA FOR MOUNTING PARTS ITEM REMARKS FIGURE TYPE NUMBER Clasp steel, zinc (Zn) plated 5 CLA-E55/28/21 Spring steel, zinc (Zn) plated 6 SPR-E55/28/21 58.8 max. handbook, full pagewidth 35 23.5 21 27.94 2.8 50.8 44 4 ∅9 65.3 max. Dimensions in mm. Fig.5 E55/28/21 clasp. handbook, full pagewidth 6.8 +0.5 0 0.2 min. 21 ±0.2 60.2 ±0.2 46 56.1 CBW068 4.2 24.3 Dimensions in mm. Fig.6 E55/28/21 spring. 2008 Sep 01 440 CBW495 Ferroxcube E cores and accessories E55/28/21 DATA SHEET STATUS DEFINITIONS DATA SHEET STATUS PRODUCT STATUS DEFINITIONS Preliminary specification Development This data sheet contains preliminary data. Ferroxcube reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. Product specification Production This data sheet contains final specifications. Ferroxcube reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. DISCLAIMER Life support applications These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Ferroxcube customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Ferroxcube for any damages resulting from such application. PRODUCT STATUS DEFINITIONS STATUS INDICATION DEFINITION Prototype These are products that have been made as development samples for the purposes of technical evaluation only. The data for these types is provisional and is subject to change. Design-in These products are recommended for new designs. Preferred These products are recommended for use in current designs and are available via our sales channels. Support These products are not recommended for new designs and may not be available through all of our sales channels. Customers are advised to check for availability. 2008 Sep 01 441