Ferroxcube
EP cores and accessories
µ
e
≈
44
≈
70
≈
111
≈
174
≈
219
≈
1530
EP17
GRADE
3F3
A
L
(nH)
63
±3%
100
±3%
160
±3%
250
±3%
315
±5%
2200
±25%
TOTAL AIR GAP
(µm)
≈
1020
≈
560
≈
310
≈
180
≈
135
≈
0
TYPE NUMBER
EP17-3F3-E63
EP17-3F3-A100
EP17-3F3-A160
EP17-3F3-A250
EP17-3F3-A315
EP17-3F3
Core sets of high permeability grades
Clamping force for A
L
measurements, 40
±10
N.
GRADE
3E27
A
L
(nH)
7100
±
25%
µ
e
≈
4950
AIR GAP
(µm)
≈0
TYPE NUMBER
EP17-3E27
Properties of core sets under power conditions
B (mT) at
GRADE
H = 250 A/m;
f = 25 kHz;
T = 100
°C
≥315
≥315
≥320
≥340
≥315
f = 25 kHz;
ˆ
B = 200 mT;
T = 100
°C
≤
0.23
−
−
−
−
CORE LOSS (W) at
f = 100 kHz;
ˆ
B = 100 mT;
T = 100
°C
−
≤
0.06
(1)
≤
0.08
≤
0.06
≤
0.15
f = 100 kHz;
ˆ
B = 200 mT;
T = 100
°C
−
≤
0.36
(1)
≤
0.45
≤
0.36
−
f = 400 kHz;
ˆ
B = 50 mT;
T = 100
°C
−
−
−
≤
0.15
≤
0.2
3C81
3C91
3C94
3C96
3F3
Properties of core sets under power conditions (continued)
B (mT) at
GRADE
H = 250 A/m;
f = 25 kHz;
T = 100
°C
≥315
≥315
≥320
≥340
≥315
f = 500 kHz;
ˆ
B = 50 mT;
T = 100
°C
−
−
−
≤
0.3
−
CORE LOSS (W) at
f = 500 kHz;
ˆ
B = 100 mT;
T = 100
°C
−
−
−
−
−
f = 1 MHz;
ˆ
B = 30 mT;
T = 100
°C
−
−
−
−
−
f = 3 MHz;
ˆ
B = 10 mT;
T = 100
°C
−
−
−
−
−
3C81
3C91
3C94
3C96
3F3
Note
1. Measured at 60
°C.
2008 Sep 01
707
Ferroxcube
EP cores and accessories
COIL FORMER
General data
PARAMETER
Coil former material
Pin material
Maximum operating temperature
Resistance to soldering heat
Solderability
SPECIFICATION
EP17
phenolformaldehyde (PF), glass-reinforced, flame retardant in accordance with
“UL 94V-0”
; UL file number E41429 (M)
copper clad steel, tin (Sn) plated
180
°C,
“IEC 60085”,
class H
“IEC 60068-2-20”
, Part 2, Test Tb, method 1B: 350
°C,
3.5 s
“IEC 60068-2-20”
, Part 2, Test Ta, method 1: 235
°C,
2 s
11.4 max.
6 +0.15
0
0.65
10.9
±0.1
9.4 min.
0.65
1 +0.15
0
handbook, full pagewidth
3.5
3
0
∅7.2 −0.2
15
4.5
1.5
4.7
0.5
0.6
19.2 max.
19.2 max.
5
CBW506
Dimensions in mm.
Fig.2 EP17 coil former: 8-pins.
Winding data and area product for 8-pins EP17 coil former
NUMBER OF
SECTIONS
1
2
MINIMUM
WINDING
AREA
(mm
2
)
18.0
2
×
8.3
NOMINAL
WINDING
WIDTH
(mm)
9.45
2
×
4.6
AVERAGE
LENGTH OF
TURN
(mm)
28.9
28.9
AREA
PRODUCT
Ae x Aw
(mm
4
)
607
2 x 280
TYPE NUMBER
CSH-EP17-1S-8P
CSH-EP17-2S-8P
2008 Sep 01
708
Ferroxcube
EP cores and accessories
MOUNTING PARTS
General data
ITEM
Clasp
Spring
REMARKS
copper-tin alloy (CuSn), tin (Sn) plated
copper-tin alloy (CuSn), tin (Sn) plated
FIGURE
3
4
EP17
TYPE NUMBER
CLA-EP17
SPR-EP17
handbook, halfpage
19.6
5
0.4 TYP
handbook, halfpage
4.4
19.2
9
15.6
1
18.4
9
5
16.8
CBW621
CBW620
Dimensions in mm.
Dimensions in mm.
Fig.3 Mounting clasp CLA-EP17.
Fig.4 Mounting spring SPR-EP17.
2008 Sep 01
709