B66398A2000X000

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.
Ferrites and accessories
ETD 59/31/22
Core and accessories
Series/Type: B66397, B66398
Date: May 2017
2 5/17
Please read Cautions and warnings and
Important notes at the end of this document.
To IEC 62317-6
For SMPS transformers with optimum
weight/performance ratio at small volume
Delivery mode: single units
Magnetic characteristics (per set)
Σl/A= 0.38 mm
–1
l
e
= 139 mm
A
e
= 368 mm
2
A
min
= 368 mm
2
V
e
= 51200 mm
3
Approx. weight 260 g/set
Ungapped
* H = 250 A/m; f = 10 kHz; T = 100 °C
Gapped (A
L
values/air gaps examples)
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 5.
Material A
L
value
nH
μ
e
B
S
*
mT
P
V
W/set
Ordering code
N27 5000 +30/–20% 1500 320 < 9.62 (200 mT, 25 kHz, 100 °C) B66397G0000X127
N87 5300 +30/–20% 1590 320 < 5.20 (100 mT, 100 kHz, 100 °C) B66397G0000X187
N97 5500 +30/–20% 1660 320 < 4.50 (100 mT, 100 kHz, 100 °C) B66397G0000X197
Material g
mm
A
L
value
approx.
nH
μ
e
Ordering code
** = 27 (N27)
** = 87 (N87)
N27, 0.20 ±0.02 1588 476 B66397G0200X1**
N87 1.00 ±0.05 508 152 B66397G1000X1**
1.50 ±0.05 381 114 B66397G1500X1**
2.00 ±0.05 311 93 B66397G2000X1**
B66397Core
ETD 59/31/22
3 5/17
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 < 3.50 mm
K3, K4: 170 nH < A
L
< 1660 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 508 0.708 853 0.847 799 0.865
N87 508 0.708 812 0.796 783 0.873
B66397Core
ETD 59/31/22

B66398A2000X000

Mfr. #:
Manufacturer:
EPCOS / TDK
Description:
CLIP, ETD59
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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