Ferrites and accessories
ETD 29/16/10
Core and accessories
Series/Type:
Date:
B66358, B66359
May 2017
EPCOS AG 2017. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS’ prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
ETD 29/16/10
Core
ETD 29/16/10 through ETD 59/31/22
■
To 62317-6
■
For SMPS transformers with optimum
B66358
weight/performance ratio at small volume
■
Delivery mode: single units
Magnetic characteristics
(per set)
Σl/A
l
e
A
e
A
min
V
e
= 0.93 mm
–1
= 70.4 mm
= 76.0 mm
2
= 71.0 mm
2
= 5350 mm
3
Approx. weight
28 g/set
Ungapped
Material
N27
N87
N97
A
L
value
nH
2000 +30/–20%
2200 +30/–20%
2250 +30/–20%
μ
e
1470
1610
1670
P
V
W/set
< 1.04 (200 mT, 25 kHz, 100 °C)
< 2.80 (200 mT, 100 kHz, 100 °C)
< 2.40 (200 mT, 100 kHz, 100 °C)
Ordering code
B66358G0000X127
B66358G0000X187
B66358G0000X197
Gapped
(A
L
values/air gaps examples)
Material
g
mm
N27,
N87
0.10
±0.02
0.20
±0.02
0.50
±0.05
1.00
±0.05
A
L
value
approx.
nH
621
383
201
124
μ
e
Ordering code
** = 27 (N27)
**
= 87 (N87)
B66358G0100X1**
B66358G0200X1**
B66358G0500X1**
B66358G1000X1**
457
281
148
91
The A
L
value in the table applies to a core set comprising one ungapped core (dimension g = 0 mm)
and one gapped core (dimension g > 0 mm).
Other A
L
values/air gaps and materials available on request ─ see Processing remarks on page 6.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
2
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ETD 29/16/10
Core
Calculation factors
(for formulas, see
“E cores: general information”)
Material
Relationship between
air gap – A
L
value
K1 (25 °C)
N27
N87
Validity range:
124
124
K2 (25 °C)
–0.7
–0.7
Calculation of saturation current
K3 (25 °C)
195
192
K4 (25 °C)
–0.847
–0.796
K3 (100 °C) K4 (100 °C)
181
176
–0.865
–0.873
B66358
K1, K2: 0.10 mm < s < 2.00 mm
K3, K4: 70 nH < A
L
< 680 nH
Please read
Cautions and warnings
and
Important notes
at the end of this document.
3
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ETD 29/16/10
Accessories
Coil former
(magnetic axis horizontal)
GFR polyterephthalate, UL 94 V-0, insulation class to IEC 60085:
B66359B: F max. operating temperature 155 °C, color code black
Valox 420-SE0 [E207780 (M)] SABIC JAPAN L L C
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 Processing notes, 2.1
Pins:
Squared pins
Yoke
Material:
Coil former
Sections
1
A
N
mm
2
97
l
N
mm
52.8
A
R
value
μΩ
18.7
Pins
13
B66359B1013T001
B66359W1013T001
B66359S2000X000
Stainless spring steel (0.3 mm)
Ordering code
Material:
B66359
Yoke (ordering code per piece, 2 are required)
Coil former
Yoke
Please read
Cautions and warnings
and
Important notes
at the end of this document.
4
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ETD 29/16/10
Accessories
Coil former
(magnetic axis vertical)
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 Processing notes, 2.1
Pins:
Squared pins
Yoke
Material:
Coil former
Sections
1
A
N
mm
2
97
l
N
mm
52.8
A
R
value
μΩ
18.7
Pins
14
B66359X1014T001
B66359S2000X000
Stainless spring steel (0.3 mm)
Ordering code
Material:
B66359
Yoke (ordering code per piece, 2 are required)
Coil former
Yoke
Please read
Cautions and warnings
and
Important notes
at the end of this document.
5
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