Philips Components
Product speci鏗乧ation
Ferrite ring cores (toroids)
RING CORES (TOROIDS)
Effective core parameters
SYMBOL
危(I/A)
V
e
I
e
A
e
m
Coating
The cores are coated with polyamide 11 (PA11), flame
retardant in accordance with
鈥淯L 94V-2鈥?/div>
.
Isolation voltage
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.
PARAMETER
core factor (C1)
effective volume
effective length
effective area
mass of core
VALUE
2.46
368
30.1
12.2
鈮?.8
UNIT
mm
鈭?
mm
3
mm
mm
2
g
handbook, halfpage
TN13/7.5/5
13.0
鹵0.35
(鈮?.3)
,,,,
,,,,
6.8
鹵0.35
coating PA11
CBW313
5.4
鹵0.3
Dimensions in mm.
Fig.1 TN13/7.5/5 ring core.
Ring core data
GRADE
4C65
4A11
3F4
3F3
3C85
3C11
3E25
3E5
3E6
Note
1. Ring cores in grades 3E5 and 3E6 are lacquered (polyurethane) and have different dimensions:
Outside diameter = 12.75
鹵0.4
mm; inside diameter = 7.25
鹵0.35
mm; height = 5.25
鹵0.3
mm.
Properties of cores under power conditions
B (mT) at
GRADE
H = 250 A/m;
f = 25 kHz;
T = 100
擄C
鈮?20
鈮?20
f = 25 kHz;
藛
B = 200 mT;
T = 100
擄C
鈮?.06
鈭?/div>
711
CORE LOSS (W) at
f = 100 kHz;
藛
B = 100 mT;
T = 100
擄C
鈮?.07
鈮?.04
f = 400 kHz;
藛
B = 50 mT;
T = 100
擄C
鈭?/div>
鈮?.07
A
L
(nH)
64
鹵25%
360
鹵25%
460
鹵25%
900
鹵25%
1000
鹵25%
2200
鹵25%
2810
鹵30%
4340
鹵30%
5095
鹵30%
碌
i
鈮?25
鈮?00
鈮?00
鈮?800
鈮?000
鈮?300
鈮?500
鈮?500
鈮?0000
COLOUR CODE
violet
pink
beige
blue
red
white
orange
yellow/white
purple/white
TYPE NUMBER
TN13/7.5/5-4C65
TN13/7.5/5-4A11
TN13/7.5/5-3F4
TN13/7.5/5-3F3
TN13/7.5/5-3C85
TN13/7.5/5-3C11
TN13/7.5/5-3E25
TL13/7.5/5-3E5
(1)
TL13/7.5/5-3E6
(1)
3C85
3F3
1997 Nov 21
1
