FERROXCUBE DATA SHEET TX55/32/18 Ferrite toroids Supersedes data of September 2004 2008 Sep 01 Ferroxcube Ferrite toroids TX55/32/18 RING CORES (TOROIDS) Effective core parameters SYMBOL Σ(I/A) PARAMETER core factor (C1) VALUE UNIT 0.651 mm−1 Ve effective volume 26580 mm3 Ie effective length 132 mm Ae effective area 202 mm2 m mass of core ≈ 134 g 55.8 ±1.7 handbook, halfpage Coating 32.1 ±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. epoxy 18.3 ±0.9 Isolation voltage CBW399 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 TX55/32/18 ring core. Ring core data GRADE 4A11 AL (nH) µi 1350 ± 25% ≈ 700 (1) TYPE NUMBER TX55/32/18-4A11 3C11 8300 ± 25% ≈ 4300 TX55/32/18-3C11 3E25 10620 ± 25% ≈ 5500 TX55/32/18-3E25 3E27 10620 ± 25% ≈ 5500 TX55/32/18-3E27 1. Old permeability specification maintained. 2008 Sep 01 1750 Ferroxcube Ferrite toroids TX55/32/18 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 1751