2

06/13

Please read Cautions and warnings and



Important notes at the end of this document.

■

Round center leg particularly suitable



for use of thick winding wires or tapes

■

For compact winding design with



low leakage inductance

■

Delivery mode: single units

Magnetic characteristics (per set)

= 99 mm



Approx. weight 84 g/set

Ungapped

* H = 250 A/m; f = 10 kHz; T = 100 °C

Gapped

one gapped core (dimension g > 0).

Calculation factors (for formulas, see “E cores: general information” )

Validity range:

K1, K2: 0.10 mm < s < 3.00 mm



Material

nH



e

mT

W/set

Ordering code

N27

3200 +30/–20% 1480

320

< 3.1 (200 mT, 25 kHz, 100 °C) B66347G0000X127

N87

3700 +30/–20% 1710

320

< 9.0 (200 mT, 100 kHz, 100 °C) B66347G0000X187

Material

g





mm

approx.



nH



e

Ordering code

N27

1.00

0.05

257

119

B66347G1000X127

Material

Relationship between



Calculation of saturation current

K1 (25 °C)

K2 (25 °C)

K3 (25 °C)

K4 (25 °C)

K3 (100 °C)

K4 (100 °C)

N27

257

–0.741

415

–0.847

387

–0.865

N87

257

–0.741

401

–0.796

377

–0.873

B66347

Core

ER 42/22/15