Ferrites and accessories
E 65/32/27
Core
Series/Type: B66387
Date: September 2006
Data SheetData Sheet
EPCOS AG 2006. Reproduction, publication and dissemination of this data sheet and the
information contained therein without EPCOS prior express consent is prohibited.E 65/32/27
Core B66387
Delivery mode: single units
Magnetic characteristics (per set)
1
l/A= 0.27 mm
l = 147 mm
e
2
A = 535 mm
e
2
A = 529 mm
min
3
V = 78600 mm
e
Approx. weight 394 g/set
Ungapped
Material A value P Ordering code
L e V
nH W/set
N27 7200 +30/20% 1570 < 14.6 (200 mT, 25 kHz, 100 C) B66387G0000X127
N87 7900 +30/20% 1700 < 6.7 (100 mT, 100 kHz, 100 C) B66387G0000X187
Gapped
Material g A value Ordering code
L e
approx. ** = 27 (N27)
mm nH ** = 87 (N87)
N27, 0.50 0.05 1214 265 B66387G0500X1**
N87 1.00 0.05 716 156 B66387G1000X1**
1.50 0.05 526 115 B66387G1500X1**
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 716 0.762 1231 0.847 1154 0.865
N87 716 0.762 1168 0.796 1131 0.873
Validity range: K1, K2: 0.20 mm < s < 5.00 mm
K3, K4: 230 nH < A < 2290 nH
L
Please read Cautions and warnings and
2 09/06
Important notes at the end of this document.