FERROXCUBE DATA SHEET U10/8/3 U, I cores and accessories Supersedes data of September 2004 2008 Sep 01 Ferroxcube U, I cores and accessories U10/8/3 CORE SETS Effective core parameters SYMBOL PARAMETER VALUE 9.9 ±0.3 UNIT Σ(I/A) core factor (C1) 4.74 mm−1 Ve effective volume 309 mm3 Ie effective length 38.3 mm Ae effective area 8.07 mm2 Amin minimum area 7.91 mm2 m mass of core half ≈ 0.9 g 4.35 ±0.2 handbook, halfpage 5 +0.3 0 8.2 0 −0.2 2.85 ±0.15 CBW299 Dimensions in mm. Fig.1 U10/8/3 core half. Core halves AL measured on a combination of 2 U cores. AL (nH) µe 3C90 420 ±25% ≈ 1590 U10/8/3-3C90 3C94 470 ±25% ≈ 1770 U10/8/3-3C94 GRADE TYPE NUMBER 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 f = 100 kHz; ˆ = 200 mT; B T = 100 °C T = 100 °C 3C90 ≥320 ≤ 0.04 ≤ 0.04 − 3C94 ≥320 − ≤ 0.03 ≤ 0.18 GRADE 2008 Sep 01 1302 Ferroxcube U, I cores and accessories U10/8/3 COIL FORMERS General data 4-pins U10/8/3 coil former PARAMETER SPECIFICATION Coil former material polybuteleneterephtalate (PBT), glass-reinforced, flame retardant in accordance with “UL 94V-0”; UL file number E69578(M) Pin material copper-tin alloy (CuSn), tin (Sn) plated Maximum operating temperature 155 °C, “IEC 60085”, class F 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 3 min. 2.54 handbook, full pagewidth 2.2 4.1 max. 11.1 max. 1.6 max. 3.7 max. CBW581 2.54 ±0.03 10.16±0.05 +0.15 1.3 0 0.8 max. ∅0.8 7.62 ±0.05 Dimensions in mm. Fig.2 U10/8/3 coil former; 4-pins. Winding data and area product for 4-pins U10/8/3 coil former NUMBER OF SECTIONS WINDING AREA (mm2) MINIMUM WINDING WIDTH (mm) AVERAGE LENGTH OF TURN (mm) AREA PRODUCT Ae x Aw (mm4) 1 28 8 30 226 2008 Sep 01 1303 TYPE NUMBER CPH-U10/8/3-1S-4P Ferroxcube U, I cores and accessories U10/8/3 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 1304