TN14/9/5-3E25 Ferroxcube

FERROXCUBE DATA SHEET TN14/9/5 Ferrite toroids Supersedes data of September 2004 2008 Sep 01Ferroxcube Ferrite toroids TN14/9/5 RING CORES (TOROIDS) 14.6 0.4 Effective core parameters handbook, halfpage SYMBOL PARAMETER VALUE UNIT 1 (I/A) core factor (C1) 2.84 mm 3 V effective volume 430 mm e I effective length 35 mm e 2 A effective area 12.3 mm e 8.2 0.35 m mass of core 2.1 g coating PA11 (0.3) Coating The cores are coated with polyamide 11 (PA11), flame 5.5 0.3 retardant in accordance with UL 94V-2 UL file number E 45228 (M). The colour is white. CBW312 Maximum operating temperature is 160 C. Dimensions in mm. Isolation voltage Fig.1 TN14/9/5 ring core. DC isolation voltage: 1500 V. Contacts are applied on the edge of the ring core, which is also the critical point for the winding operation. Ring core data A L GRADE TYPE NUMBER i (nH) 4C65 55 25% 125 TN14/9/5-4C65 (1) 4A11 310 25% 700 TN14/9/5-4A11 (2) 3R1 800 TN14/9/5-3R1 3F3 790 25% 1800 TN14/9/5-3F3 3C90 1015 25% 2300 TN14/9/5-3C90 3C11 1900 25% 4300 TN14/9/5-3C11 3E25 2430 30% 5500 TN14/9/5-3E25 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 A value is specified. For the application in magnetic amplifiers A is not a critical parameter. L L WARNING Do not use 3R1 cores close to their mechanical resonant frequency. For more information refer to 3R1 material specification in this data handbook. 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 0.048 0.048 3F3 320 0.05 0.08 2008 Sep 01 1640