EF coil formers
Series/Type: E 30_15_7
The following products presented in this data sheet are being withdrawn.
Ordering Code Substitute Product Date of Withdrawal Deadline Last Last Shipments
Orders
B66232A1114T001 B66232B1114T001 2010-01-29 2010-04-30 2010-07-30
For further information please contact your nearest EPCOS sales office, which will also support you in selecting a
suitable substitute. The addresses of our worldwide sales network are presented at www.epcos.com/sales.E 30/15/7
Core B66319
Delivery mode: single units
Magnetic characteristics (per set)
1
l/A = 1.12 mm
l = 67 mm
e
2
A = 60 mm
e
2
A = 49 mm
min
3
V = 4000 mm
e
Approx. weight 22 g/set
Ungapped
Material A value P Ordering code
L e V
nH W/set
N30 3100 +30/20% 2760 B66319G0000X130
N27 1700 +30/20% 1510 < 0.81 (200 mT, 25 kHz, 100 C) B66319G0000X127
N87 1900 +30/20% 1690 < 2.20 (200 mT, 100 kHz, 100 C) B66319G0000X187
Gapped
Material g A value Ordering code
L e
approx. ** = 27 (N27)
mm nH ** = 87 (N87)
N27, 0.100.02 460 410 B66319G0100X1**
N87 0.180.02 300 265 B66319G0180X1**
0.340.02 195 175 B66319G0340X1**
The A value in the table applies to a core set comprising one ungapped core (dimension g = 0) and
L
one gapped core (dimension g > 0).
Calculation factors (for formulas, see E cores: general information)
Material Relationship between Calculation of saturation current
air gap A value
L
K1 (25 C) K2 (25 C) K3 (25 C) K4 (25 C) K3 (100 C) K4 (100 C)
N27 90 0.708 156 0.847 144 0.865
N87 90 0.708 154 0.796 140 0.873
Validity range: K1, K2: 0.10 mm < s < 2.00 mm
K3, K4: 560 nH < A < 60 nH
L
Please read Cautions and warnings and
2 09/06
Important notes at the end of this document.