FERROXCUBE DATA SHEET ER41/7.6/32 Planar ER cores and accessories New data 2008 Sep 01 Ferroxcube Planar ER cores and accessories ER41/7.6/32 CORE SETS Effective core parameters SYMBOL PARAMETER VALUE UNIT Σ(I/A) core factor (C1) 0.253 mm−1 Ve effective volume 12900 mm3 Ie effective length 57.0 mm Ae effective area 225 mm2 Amin minimum area 201 mm2 m mass of core half ≈ 37 g 3.6 7.6 ± 0.1 ± 0.1 R0.25 max (4x) 3.8 min 16 ± 0.3 2 R1.0 (8x) A + 0.3 −0 5˚ R0.8 (2x) 32 ± 0.6 A Section A-A 34.04 ± 0.7 3.2 min (2x) MFP183 40.64 ± 0.8 Dimensions in mm. Fig.1 ER41/7.6/32 core half. Core halves for general purpose transformers and power applications Clamping force for AL measurements, 100 ± 25 N. AL (nH) GRADE AIR GAP (µm) µe TYPE NUMBER 6500 ± 25 % ≈ 1310 ≈0 ER41/7.6/32-3C92 3C93 7500 ± 25 % ≈ 1510 ≈0 ER41/7.6/32-3C93 3C95 11120 ± 25 % ≈ 2240 ≈0 ER41/7.6/32-3C95 3C96 8100 ± 25 % ≈ 1630 ≈0 ER41/7.6/32-3C96 3F3 8100 ± 25 % ≈ 1630 ≈0 ER41/7.6/32-3F3 3C92 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 = 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 T = 100 °C f = 500 kHz; ˆ = 50 mT; B T = 100 °C 3C92 ≥ 370 ≤ 1.3 − ≤ 7.8 − − GRADE 3C93 ≥ 320 ≤ 1.3 − − 3C95 ≥ 320 − ≤ 8.94 ≤ 8.51 − − 3C96 ≥ 340 ≤ 0.92 − ≤ 5.88 − ≤ 5.58 3F3 ≥ 300 ≤ 1.7 − − ≤ 2.5 − 1. − (1) Measured at 140 °C. 2008 Sep 01 2 ≤ 7.8 (1) Ferroxcube Planar ER cores and accessories ER41/7.6/32 MOUNTING INFORMATION 41.65 min 33.15 max 16.45 min 32.8 min R0.8 max (8×) MFP184 Fig.2 Recommended PCB cut-out for ER41/7.6/32 cores. Winding data for ER41/7.6/32 planar core WINDING AREA (mm2) AVERAGE TRACK LENGTH (mm) FOOTPRINT AREA (mm2) 64.9 78.6 1316 2008 Sep 01 3 Ferroxcube Planar ER cores and accessories ER41/7.6/32 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 4