Data Sheet
Data Sheet
Date:
September 2006
EPCOS AG 2006. Reproduction, publication and dissemination of this data sheet and the
information contained therein without EPCOS' prior express consent is prohibited.
Ferrites and accessories
ETD 29/16/10
Core and accessories
Series/Type:
B66358, B66359
2
09/06
Please read Cautions and warnings and
Important notes at the end of this document.
To IEC 61185
For SMPS transformers with optimum
weight/performance ratio at small volume
Delivery mode: single units
Magnetic characteristics (per set)
l/A = 0.93 mm
1
l
e
= 70.4 mm
A
e
= 76.0 mm
2
A
min
= 71.0 mm
2
V
e
= 5350 mm
3
Approx. weight 28 g/set
Ungapped
Gapped
The A
L
value in the table applies to a core set comprising one ungapped core (dimension g = 0) and
one gapped core (dimension g > 0).
Material
A
L
value
nH
e
P
V
W/set
Ordering code
N27
2000 +30/20%
1470
< 1.04 (200 mT, 25 kHz, 100 C)
B66358G0000X127
N87
2200 +30/20%
1610
< 2.80 (200 mT, 100 kHz, 100 C)
B66358G0000X187
N97
2250 +30/20%
1670
< 2.40 (200 mT, 100 kHz, 100 C)
B66358G0000X197
Material
g
mm
A
L
value
approx.
nH
e
Ordering code
** = 27 (N27)
**
= 87 (N87)
N27,
0.10
0.02
621
457
B66358G0100X1**
N87
0.20
0.02
383
281
B66358G0200X1**
0.50
0.05
201
148
B66358G0500X1**
1.00
0.05
124
91
B66358G1000X1**
FEK0044-8
g
16
0,4
_
10,7+0,6
_
9,8 0,6
22+1,4
30,6 1,6
_
9,8
0,6
_
B66358
ETD 29/16/10 through ETD 59/31/22
Core
ETD 29/16/10
3
09/06
Please read Cautions and warnings and
Important notes at the end of this document.
Calculation factors (for formulas, see "E cores: general information")
Validity range:
K1, K2: 0.10 mm < s < 2.00 mm
K3, K4: 70 nH < A
L
< 680 nH
Material
Relationship between
air gap A
L
value
Calculation of saturation current
K1 (25 C)
K2 (25 C)
K3 (25 C)
K4 (25 C)
K3 (100 C)
K4 (100 C)
N27
124
0.7
195
0.847
181
0.865
N87
124
0.7
192
0.796
176
0.873
B66358
Core
ETD 29/16/10
4
09/06
Please read Cautions and warnings and
Important notes at the end of this document.
Coil former (magnetic axis horizontal)
Material:
GFR polyterephthalate, UL 94 V-0, insulation class to IEC 60085:
B66359A/B: F max. operating temperature 155 C, color code black
Valox 420-SE0
[E45329 (M)], GE PLASTICS B V
B66359W: H max. operating temperature 180 C, color code black
Rynite FR 530
[E41938 (M)], E I DUPONT DE NEMOURS & CO INC
Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 C, 2 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 C, 3.5 s
Winding:
see Data Book 2007, chapter "Processing notes, 2.1"
Squared pins.
Yoke
Material:
Stainless spring steel (0.4 mm)
1) Molded-in pins
Coil former
Yoke
Coil former
Ordering code
Sections
A
N
mm
2
l
N
mm
A
R
value
Pins
1
97
52.8
18.7
13
B66359A1013T001
1)
B66359B1013T001
B66359W1013T001
Yoke (ordering code per piece, 2 are required)
B66359A2000X000
FEK0202-B
8,70,2
8,10,3
+0,5
0,2
33,8
_
FEK0326-U-E
View in mounting direction
Hole arrangement
10 min.
35.3 max.
21.5 min.
11.8 max.
25 max.
0.5
3.5
_
19.4 min.
35.2 max.
21.2 max.
0.7
Pin 1
marking
6 x 5.08 = 30.48
25.40.05
1.6+0.15
B66359
Accessories
ETD 29/16/10
5
09/06
Please read Cautions and warnings and
Important notes at the end of this document.
Coil former (magnetic axis vertical)
Material:
GFR polyterephthalate (UL 94 V-0, insulation class to IEC 60085:
H max. operating temperature 180 C), color code black
Rynite FR 530
[E41938 (M)], E I DUPONT DE NEMOURS & CO INC
Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 C, 2 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 C, 3.5 s
Winding:
see Data Book 2007, chapter "Processing notes, 2.1"
Squared pins.
Yoke
Material:
Stainless spring steel (0.4 mm)
Coil former
Yoke
Coil former
Ordering code
Sections
A
N
mm
2
l
N
mm
A
R
value
Pins
1
97
52.8
18.7
14
B66359X1014T001
Yoke (ordering code per piece, 2 are required)
B66359A2000X000
FEK0327-3
8,70,2
8,10,3
+0,5
33,8
0,2
_
FEK0466-U-E
10 min.
21.5 min.
1
13
24 max.
14
2
10+0.2
Pin 1 marking
0.1
1
_
1
_
0.1
3.60.2
6 x 5.08 = 30.48
20.32
1.6+0.15
3.2
_
0.2
0.7
21.2 max.
39.75 max.
11.8 max.
35.2 max.
Hole arrangement
View in mounting direction
B66359
Accessories
ETD 29/16/10
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