FERROXCUBE DATA SHEET T140/106/25 Ferrite toroids Supersedes data of September 2004 2008 Sep 01 Ferroxcube Ferrite toroids T140/106/25 RING CORES (TOROIDS) Effective core parameters SYMBOL PARAMETER VALUE UNIT 140 ±3 handbook, halfpage mm−1 Σ(I/A) core factor (C1) 0.903 Ve effective volume 161 100 mm3 Ie effective length 382 mm Ae effective area 422 mm2 m mass of core ≈ 800 g Coating 106 ±2 Coated cores are available on request. 25 ±1 CBW403 Dimensions in mm. Fig.1 T140/106/25 ring core. Ring core data AL (nH) µi 3C90 3200 ± 20% ≈ 2300 T140/106/25-3C90 3E25 7700 ± 30% ≈ 5 500 T140/106/25-3E25 GRADE TYPE NUMBER Properties of cores under power conditions B (mT) at GRADE 3C90 2008 Sep 01 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 ≥320 ≤ 22.7 ≤ 22.7 1783 Ferroxcube Ferrite toroids T140/106/25 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 1784