Ferroxcube
PQ cores and accessories
PQ26/25
GRADE
3F3
A
L
(nH)
250
±3%
315
±3%
400
±3%
630
±3%
1000
±5%
4390
±25%
µ
e
≈
90
≈
113
≈
144
≈
227
≈
360
≈
1574
TOTAL AIR GAP
(µm)
≈
730
≈
550
≈
420
≈
240
≈
140
≈
0
TYPE NUMBER
PQ26/25-3F3-E250
PQ26/25-3F3-A315
PQ26/25-3F3-A400
PQ26/25-3F3-A630
PQ26/25-3F3-A1000
PQ26/25-3F3
Properties of core sets under power conditions
B (mT) at
GRADE
H = 250 A/m;
f = 25 kHz;
T = 100
°C
≥320
≥320
≥320
≥320
≥320
≥340
≥320
CORE LOSS (W) at
f = 25 kHz; f = 100 kHz; f = 100 kHz; f = 100 kHz; f = 400 kHz;
ˆ
= 200 mT; B = 100 mT; B = 200 mT; B = 200 mT; B = 50 mT;
ˆ
ˆ
ˆ
ˆ
B
T = 100
°C
T = 100
°C
T = 25
°C
T = 100
°C
T = 100
°C
≤
1.5
≤
0.79
−
−
−
−
−
−
≤
0.83
≤
0.5
(1)
≤
0.62
−
≤
0.5
≤
0.72
−
−
−
−
≤
3.85
−
−
−
−
≤
3.2
(1)
≤
4.0
≤
3.66
≤
3.2
−
−
−
−
−
−
≤
1.15
≤
1.2
f = 500 kHz;
ˆ
B = 50 mT;
T = 100
°C
−
−
−
−
−
≤
2.5
−
3C81
3C90
3C91
3C94
3C95
3C96
3F3
Note
1. Measured at 60
°C.
2008 Sep 01
3
Ferroxcube
PQ cores and accessories
COIL FORMER
General data 12-pins PQ26/25 coil former
PARAMETER
Coil former material
Pin material
Maximum operating temperature
Resistance to soldering heat
Solderability
SPECIFICATION
PQ26/25
Polyethylene terephtalate (PET), glass-reinforced, flame retardant in
accordance with
“UL 94V-0”;
UL file number E41938
copper-tin alloy (CuSn), tin (Sn) plated
180
°C,
“IEC 60085”,
class H
“IEC 60 068-2-20”,
Part 2, Test Tb, method 1B, 350
°C,
3.5 s
“IEC 60 068-2-20”,
Part 2, Test Ta, method 1
handbook, full pagewidth
26.6 max
21.85 max
26.05 max
15.65 max
13.55
14.2
2.54
29.75
max 25.4
12.3
min
0.64
25.4
7.6
3.8
Dimensions in mm.
2.4
min
7.2
min
MGB612
Fig.2 PQ26/25 coil former; 12-pins.
Winding data and area product for 12-pins PQ26/25 coil former
NUMBER OF
SECTIONS
1
1
MINIMUM
WINDING
AREA
(mm
2
)
47.5
47.5
NOMINAL
WINDING
WIDTH
(mm)
13.6
13.6
AVERAGE
LENGTH OF
TURN
(mm)
56.4
56.4
AREA
PRODUCT
Ae x Aw
(mm
4
)
5700
5700
TYPE NUMBER
CPV-PQ26/25-1S-12P-Z
CPV-PQ26/25-1S-12PD-Z
2008 Sep 01
4
Ferroxcube
PQ cores and accessories
MOUNTING PARTS
General data
ITEM
Clamp
REMARKS
phosphorbronze, Sn plated, earth pins solderability acc. to
“IEC 60 068-2-20”,
Part 2, Test Ta, method 1: 235
°C,
2 s
PQ26/25
TYPE NUMBER
CLM/P-PQ26/25
9
0.4
3
1.5
36.8
±0.5
1.7
25.4
±0.25
28.2 max
10.5
MFW056
Dimensions in mm.
Fig.3 Clamp CLM/P-PQ26/25
2008 Sep 01
5
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