2 5/17
Please read Cautions and warnings and
Important notes at the end of this document.
■ E core with flattened, lower center leg
for especially flat transformer design
■ For DC/DC converters
■ Delivery mode: single units
Magnetic characteristics (per set)
Σl/A= 1.52 mm
–1
l
e
= 47 mm
A
e
= 31 mm
2
A
min
= 31 mm
2
V
e
= 1460 mm
3
Approx. weight 7.2 g/set
Ungapped
Other A
L
values/air gaps and materials available on request – see Processing remarks on page 5.
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).
Material A
L
value
nH
μ
e
P
V
W/set
Ordering code
N49 910 +30/–20% 1100 < 0.29 ( 50 mT, 500 kHz, 100 °C) B66417G0000X149
N87 1200 +30/–20% 1440 < 1.05 (200 mT, 100 kHz, 100 °C) B66417G0000X187
N97 1250 +30/–20% 1510 < 0.80 (200 mT, 100 kHz, 100 °C) B66417G0000X197
Material A
L
value
nH
μ
e
g
approx.
mm
Ordering code
N87 100 ±10% 120 0.49 B66417U0100K187
160 ±10% 193 0.25 B66417U0160K187
250 ±10% 300 0.13 B66417U0250K187
330 ±10% 398 0.09 B66417U0330K187
400 ±12% 483 0.07 B66417U0400H187
450 ±15% 543 0.06 B66417U0450L187
B66417Core
EFD 20/10/7
