Philips Components
Product specification
Ferrite ring cores (toroids)
TN10/6/4
RING CORES (TOROIDS)
Effective core parameters
10.6 ±0.3
handbook, halfpage
SYMBOL
PARAMETER
core factor (C1)
VALUE UNIT
Σ(I/A)
Ve
3.07
188
mm−1
mm3
mm
mm2
g
effective volume
effective length
effective area
mass of core
Ie
24.1
7.8
Ae
m
≈0.95
5.2 ±0.3
Coating
coating PA11
(≈0.3)
The cores are coated with polyamide 11 (PA11), flame
retardant in accordance with “UL 94V-2”; UL file number
E 45228 (M).
4.4
±0.3
CBW314
Isolation voltage
Dimensions in mm.
DC isolation voltage: 1000 V.
Contacts are applied on the edge of the ring core, which is
also the critical point for the winding operation.
Fig.1 TN10/6/4 ring core.
Ring core data
AL
GRADE
µi
COLOUR CODE
violet
TYPE NUMBER
TN10/6/4-4C65
(nH)
4C65
4A11
3F3
52 ±25%
286 ±25%
740 ±25%
940 ±25%
1750 ±25%
2250 ±30%
3470 ±30%
4085 ±30%
≈125
≈700
pink
TN10/6/4-4A11
TN10/6/4-3F3
TN10/6/4-3C90
TN10/6/4-3C11
TN10/6/4-3E25
TL10/6/4-3E5(1)
TL10/6/4-3E6(1)
≈1800
≈2300
≈4300
≈5500
≈8500
≈10000
blue
3C90
3C11
3E25
3E5
ultramarine
white
orange
yellow/white
purple/white
3E6
Note
1. Ring cores in 3E5 and 3E6 are lacquered (polyurethane) and have different dimensions:
Outside diameter = 10.25 ±0.4 mm; inside diameter = 5.75 ±0.3 mm; height = 4.25 ±0.3 mm; flame retardant in
accordance with “UL 94V-2”; UL file number E 192048.
Properties of cores under power conditions
B (mT) at
CORE LOSS (W) at
f = 100 kHz;
H = 250 A/m;
f = 25 kHz;
T = 100 °C
f = 25 kHz;
B = 200 mT;
T = 100 °C
f = 400 kHz;
B = 50 mT;
GRADE
ˆ
ˆ
ˆ
B = 100 mT;
T = 100 °C
T = 100 °C
3C90
3F3
≥320
≥320
≤0.021
≤0.021
≤0.03
−
−
≤0.04
1999 Dec 23
1