FERROXCUBE DATA SHEET TX51/32/19 Ferrite toroids Supersedes data of September 2004 2008 Sep 01 Ferroxcube Ferrite toroids TX51/32/19 RING CORES (TOROIDS) Effective core parameters SYMBOL PARAMETER VALUE 51.05 ± 1.5 UNIT Σ(I/A) core factor (C1) 0.73 mm−1 Ve effective volume 21500 mm3 Ie effective length 125 mm Ae effective area 172 mm2 m mass of core ≈ 100 g Coating 31.5 ± 1 The cores are coated with epoxy, flame retardant in accordance with “UL 94V-0”; UL file number E 235873. The colour is white. Maximum operating temperature is 200 °C. ( 0.12) coating EPOXY 19.3 ± 0.6 Isolation voltage CBW398 DC isolation voltage: 2000 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 TX51/32/19 ring core. Ring core data AL (nH) µi 3F3 3200 ± 20% ≈ 1800 TX51/32/19-3F3 3C90 3980 ± 20% ≈ 2300 TX51/32/19-3C90 GRADE TYPE NUMBER 3C81 4800 ± 20% ≈ 2700 TX51/32/19-3C81 3E25 8890 ± 20% ≈ 5000 TX51/32/19-3E25 3E27 8890 ± 20% ≈ 5000 TX51/32/19-3E27 3E6 17300 ± 30% ≈ 10000 TX51/32/19-3E6 Properties of cores 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 3C81 ≥320 ≤ 4.4 − 3C90 ≥320 ≤ 2.4 ≤ 2.4 − 3F3 ≥320 − ≤ 2.4 ≤ 4.1 GRADE 2008 Sep 01 1747 f = 100 kHz; ˆ = 100 mT; B T = 100 °C f = 400 kHz; ˆ = 50 mT; B T = 100 °C − Ferroxcube Ferrite toroids TX51/32/19 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 1748