FERROXCUBE DATA SHEET TN7.5/4.1/3 Iron powder toroids Supersedes data of September 2004 2008 Sep 01 Ferroxcube Iron powder toroids TN7.5/4.1/3 RING CORES (TOROIDS) Effective core parameters 8.1 0.3 handbook, halfpage SYMBOL PARAMETER VALUE UNIT Σ(I/A) core factor (C1) 3.58 mm−1 Ve effective volume 83 mm3 Ie effective length 17.3 mm Ae effective area 4.81 mm2 m mass of core ≈0.6 g ;;;; ;;;; 3.5 0.3 Coating (0.3) The cores are coated with polyamide 11 (PA11), flame retardant in accordance with “UL 94V-2”; UL file number E 45228 (M). The colour is white. Maximum operating temperature is 160 °C. coating PA11 3.3 0.5 MGC188 Isolation voltage DC isolation voltage: 1500 V. Contacts are applied on the edge of the ring core, which is also the critical point for the winding operation. Dimensions in mm. Fig.1 TN7.5/4.1/3 ring core. Ring core data AL (nH) µi 2P40 14 ±10% ≈40 TN7.5/4.1/3-2P40 2P50 18 ±10% ≈50 TN7.5/4.1/3-2P50 2P65 23 ±10% ≈65 TN7.5/4.1/3-2P65 2P80 28 ±10% ≈80 TN7.5/4.1/3-2P80 2P90 30 +10/−15% ≈90 TN7.5/4.1/3-2P90 GRADE 2008 Sep 01 1886 TYPE NUMBER Ferroxcube Iron powder toroids TN7.5/4.1/3 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 1887