FERROXCUBE DATA SHEET TC3.5/1.8/1.3 Ferrite toroids Supersedes data of September 2004 2008 Sep 01 Ferroxcube Ferrite toroids TC3.5/1.8/1.3 RING CORES (TOROIDS) Effective core parameters SYMBOL 3.46 ± 0.15 PARAMETER VALUE UNIT Σ(I/A) core factor (C1) 7.44 mm−1 Ve effective volume 7.87 mm3 Ie effective length 7.65 mm Ae effective area 1.03 mm2 m mass of core ≈ 0.04 g 1.78 ± 0.1 Coating The cores are coated with parylene C, flame retardant in accordance with “UL 94V-2”; UL file number E 194397. The coating is transparent. Maximum operating temperature is 90 °C. ( 12 µm) coating PARYLENE 'C' 1.27 ± 0.1 Isolation voltage MFW075 DC isolation voltage: 1000 V. Contacts are applied on the edge of the ring core, which is also the critical point for the winding operation. Dimensions (uncoated) in mm. Fig.1 TC3.5/1.8/1.3 ring core. Ring core data GRADE 3E27 2008 Sep 01 AL (nH) µi 930 ± 25% ≈ 5500 1533 TYPE NUMBER TC3.5/1.8/1.3-3E27 Ferroxcube Ferrite toroids TC3.5/1.8/1.3 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 1534