DATA SHEET
Supersedes data of September 2004 2008 Sep 01
FERROXCUBE
TX58/41/18
Ferrite toroids
2008 Sep 01 1753
Ferroxcube
Ferrite toroids TX58/41/18
RING CORES (TOROIDS)
Effective core parameters
Coating
The cores are coated with epoxy, flame retardant in
accordance with “UL 94V-0”; UL file number E 235873.
The colour is white.
Maximum operating temperature is 200 °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.
SYMBOL PARAMETER VALUE UNIT
Σ(I/A) core factor (C1) 1.0 mm−1
Veeffective volume 23200 mm3
Ieeffective length 152 mm
Aeeffective area 152 mm2
m mass of core ≈ 110 g
Fig.1 TX58/41/18 ring core.
Dimensions in mm.
handbook, halfpage
MGC226
40.5 0.9
17.9
0.7
epoxy
58.7 1.1
Ring core data
Properties of cores under power conditions
GRADE AL
(nH) µiTYPE NUMBER
3C90 2890 ± 25% ≈ 2300 TX58/41/18-3C90
3C11 5400 ± 25% ≈ 4300 TX58/41/18-3C11
3E25 6900 ± 25% ≈ 5500 TX58/41/18-3E25
GRADE
B (mT) at CORE LOSS (W) at
H = 250 A/m;
f=25kHz;
T=100°C
f=25kHz;
= 200 mT;
T=100°C
f=100kHz;
= 100 mT;
T=100°C
3C90 ≥320 ≤ 2.6 ≤ 2.6
B
ˆB
ˆ
2008 Sep 01 1754
Ferroxcube
Ferrite toroids TX58/41/18
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 preliminary 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.
