Core
Description
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E 16/8/5 (EF 16) Core
I In accordance with IEC 61246 I E cores with high permeability for common-mode
B66307
chokes and broadband applications
I E cores are supplied as single units
Magnetic characteristics (per set)
Σl/A le Ae A min Ve
= 1,87 mm–1 = 37,6 mm = 20,1 mm2 = 19,4 mm2 = 756 mm3
Approx.
weight 3,6 g/set
Ungapped Material N30 N27 N87 T42 A L-Wert nH
µe
A L1min P V nH W/set
Ordering code B66307-G-X130
1400 + 30/– 20 % 2080 950 + 30/– 20 % 1410 670 1000 + 30/– 20 % 1490 670 5100 ± 30 % 7570
< 0,14 B66307-G-X127 (200 mT, 25 kHz, 100 °C) < 0,36 B66307-G-X187 (200 mT, 100 kHz, 100 °C) B66307-F-X142
Gapped Material g mm N27, N87 0,06 ± 0,01 0,10 ± 0,02 0,50 ± 0,05 A L value approx.
nH 303 212 69
µe
Ordering code ** = 27 (N27) ** = 87 (N87) B66307-G60-X1** B66307-G100-X1** B66307-G500-X1**
450 315 102
The A L value in the table applies to a core set comprising one ungapped core (dimension g = 0) and one gapped core (dimension g > 0).
397 08/01
E 16/8/5 (EF 16) Core
Calculation factors (for formulas, see “ E cores: general information”, page 382) Material Relationship between air gap – A L value K1 (25 °C) N27 N87 Validity range: 42,2 42,2 K2 (25 °C) – 0,701 – 0,701 Calculation of saturation current K3 (25 °C) 57,0 57,8 K4 (25 °C) – 0,847 – 0,796 K3 (100 °C) K4 (100 °C) 52,1 50,4 – 0,865 – 0,873
B66307
K1, K2 : 0,05 mm < s < 1,50 mm K3, K4 : 30 nH < AL < 330 nH
398 08/01
E 16/8/5 (EF 16) Accessories
Coil former (magnetic axis horizontal or vertical) Material: GFR polyterephthalate (UL 94 V-0, insulation class to IEC 60085: F max.
operating temperature 155 °C), color code black Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 °C, 2 s Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 °C, 3,5 s Winding: see “ Processing Notes”, page 159 Squared pins Yoke Material: Coil former Figure 1 2 Sections 1 1 AN mm2 22,3 22,3 lN mm 34 34 AR value µΩ 52,4 52,4 Pins 8 8 B66308-A1108-T1 B66308-J11...
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