TN29/19/7.5-3E25 Ferroxcube

FERROXCUBE DATA SHEET TN29/19/7.5 Ferrite toroids Supersedes data of September 2004 2008 Sep 01Ferroxcube Ferrite toroids TN29/19/7.5 RING CORES (TOROIDS) Effective core parameters SYMBOL PARAMETER VALUE UNIT 29.7 0.7 handbook, halfpage 1 (I/A) core factor (C1) 1.98 mm 3 V effective volume 2700 mm e I effective length 73.2 mm e 2 A effective area 36.9 mm e m mass of core 13.5 g 18.2 0.6 Coating 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). 8.1 The colour is white. 0.5 Maximum operating temperature is 160 C. CBW303 Isolation voltage DC isolation voltage: 2000 V. Dimensions in mm. Contacts are applied on the edge of the ring core, which is Fig.1 TN29/19/7.5 ring core. also the critical point for the winding operation. Ring core data A L GRADE TYPE NUMBER i (nH) 3C90 1460 25% 2300 TN29/19/7.5-3C90 3C11 2700 25% 4300 TN29/19/7.5-3C11 3E25 3550 25% 5500 TN29/19/7.5-3E25 Properties of cores under power conditions B (mT) at CORE LOSS (W) at H= 250 A/m f= 25 kHz f = 100 kHz GRADE f = 25 kHz B=200 mT B = 100 mT T = 100 C T = 100 C T = 100 C 3C90 320 0.30 0.30 2008 Sep 01 1701