TN23-14-7 FERROXCUBE | Alldatasheet

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Supersedes data of September 2004 2008 Sep 01 FERROXCUBE TN23/14/7 Ferrite toroids

2008 Sep 01 1679

RING CORES (TOROIDS) Effective core parameters Coating 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. Isolation voltage 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. R i n g c o r e d a t a SYMBOL PARAMETER VALUE UNIT Σ(I/A) core factor (C1) 1.81 mm Ve effective volume 1722 mm 3 Ie effective length 55.8 mm Ae effective area 30.9 mm 2 m mass of core ≈ 8.4 g Fig.1 TN23/14/7 ring core. Dimensions in mm. handbook, halfpage /;/; /;/; /;/; /;/; CBW307 13.1 ±0.6 7.5 ±0.45 coating PA11(≈0.3) 23.7 ±0.7 GRADE AL (nH) µi TYPE NUMBER 4C65 87 ± 25% ≈ 125 TN23/14/7-4C65 4A11 486 ± 25% ≈ 700(1) TN23/14/7-4A11 3F3 1250 ± 25% ≈ 1800 TN23/14/7-3F3 3C90 1600 ± 25% ≈ 2300 TN23/14/7-3C90 3C11 3000 ± 25% ≈ 4300 TN23/14/7-3C11 3E25 3820 ± 25% ≈ 5500 TN23/14/7-3E25 1. Old permeability specification maintained. 2. Due to the rectangular BH-loop of 3R1, inductance values strongly depend on the magnetic state of the ring core and measuring conditions. Therefore no AL value is specified. For the application in magnetic amplifiers A L is not a critical parameter. WARNING Do not use 3R1 cores close to their mechanical resonant frequency. For more information refer to “3R1” material specification in this data handbook.

2008 Sep 01 1680

Properties of cores under power conditions GRADE B (mT) at CORE LOSS (W) at H = 250 A/m; f = 25 kHz; T = 100 °C f=2 5k H z ; =2 0 0m T ; T = 100 °C f = 100 kHz; = 100 mT; T = 100 °C f = 400 kHz; =5 0m T ; T = 100 °C 3C90 ≥320 ≤ 0.19 ≤ 0.19 3F3 ≥320 ≤ 0.19 ≤ 0.33 Bˆ Bˆ Bˆ

2008 Sep 01 1681

DATA SHEET STATUS DEFINITIONS 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 DATA SHEET STATUS PRODUCT STATUS DEFINITIONS Preliminary specification Development This data sheet contains prelimin ary 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. 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.