TN25/15/10-3F3 Ferroxcube

FERROXCUBE DATA SHEET TN25/15/10 Ferrite toroids Supersedes data of September 2004 2008 Sep 01Ferroxcube Ferrite toroids TN25/15/10 RING CORES (TOROIDS) Effective core parameters SYMBOL PARAMETER VALUE UNIT 25.8 0.7 handbook, halfpage 1 (I/A) core factor (C1) 1.23 mm 3 V effective volume 2944 mm e I effective length 60.2 mm e 2 A effective area 48.9 mm e m mass of core 15 g Coating 14.0 0.6 The cores are coated with polyamide 11 (PA11), flame coating PA11 (0.3) retardant in accordance with UL 94V-2 UL file number E 45228 (M). 10.6 The colour is white. 0.5 Maximum operating temperature is 160 C. CBW306 Isolation voltage DC isolation voltage: 2000 V. Dimensions in mm. Contacts are applied on the edge of the ring core, which is also the critical point for the winding operation. Fig.1 TN25/15/10 ring core. Ring core data A L GRADE TYPE NUMBER i (nH) 3F3 1840 25% 1800 TN25/15/10-3F3 3C90 2350 25% 2300 TN25/15/10-3C90 3C11 4400 25% 4300 TN25/15/10-3C11 3E25 5620 25% 5500 TN25/15/10-3E25 Properties of cores under power conditions B (mT) at CORE LOSS (W) at H = 250 A/m f= 25 kHz f = 100 kHz f = 400 kHz GRADE f = 25 kHz B=200 mT B = 100 mT B=50 mT T = 100 C T = 100 C T = 100 C T = 100 C 3C90 320 0.33 0.33 3F3 320 0.32 0.56 2008 Sep 01 1683