FERROXCUBE
DATA SHEET
TN33/20/11
Iron powder toroids
Supersedes data of September 2004 2008 Sep 01
Ferroxcube
Iron powder toroids TN33/20/11
RING CORES
Effective core parameters
33.6 ±0.5
handbook, halfpage
SYMBOL PARAMETER VALUE UNIT
Σ(I/A) core factor (C1) 1.23 mm−1
Ve effective volume 5200 mm3
Ie effective length 80.0 mm
Ae effective area 65.0 mm2
m mass of core ≈35 g
;; ;;
19.2 ±0.5
Coating coating PA11
;;;;
(0.3)
The cores are coated with polyamide 11 (PA11), flame
retardant in accordance with “UL 94V-2”; UL file number 11.5
E 45228 (M). ±0.5
The colour is white. CBW204
Maximum operating temperature is 160 °C.
Isolation voltage
Dimensions in mm.
DC isolation voltage: 1500 V.
Contacts are applied on the edge of the ring core, which is Fig.1 TN33/20/11 ring core.
also the critical point for the winding operation.
Ring core data
AL
GRADE µi TYPE NUMBER
(nH)
2P40 41 ±10% ≈40 TN33/20/11-2P40
2P50 51 ±10% ≈50 TN33/20/11-2P50
2P65 67 ±10% ≈65 TN33/20/11-2P65
2P80 82 ±10% ≈80 TN33/20/11-2P80
2P90 87 +10/−15% ≈90 TN33/20/11-2P90
2008 Sep 01 1904
Ferroxcube
Iron powder toroids TN33/20/11
DATA SHEET STATUS DEFINITIONS
DATA SHEET PRODUCT
DEFINITIONS
STATUS STATUS
Preliminary Development This data sheet contains preliminary data. Ferroxcube reserves the right to
specification 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
These are products that have been made as development samples for the purposes of
Prototype technical evaluation only. The data for these types is provisional and is subject to
change.
Design-in These products are recommended for new designs.
These products are recommended for use in current designs and are available via our
Preferred
sales channels.
These products are not recommended for new designs and may not be available
Support
through all of our sales channels. Customers are advised to check for availability.
2008 Sep 01 1905
