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PQ Series PQ20/16 Cores
Parameter
Core factor Effective magnetic path length Effective cross-sectional area Effective core volume Cross-secti onal center pole area Minimum cross-sectional center pole area Cross-secti onal winding area of core Weight (approx.) C1 em Ae Ve Acp Acp min. Acw mm–1 m mm2 mm3 mm2 mm2 mm2 g 0.605 37.4 62 2310 60.8 58.1 47.4 13
ø8.8 ± 0.2 10.3 ± 0.3 16.2 ± 0.2
14.0 ± 0.4
Dimensions in mm
20.5 ± 0.4
18.0 ± 0.4
12.0 – 0
Part No. PC44PQ20/16Z-12
∗ Coil:
AL-value (nH/N2) 3880±25% (1kHz, 0.5mA)∗ 5210 min. (100kHz, 200mT)
Core loss (W) at 100°C 100kHz, 200mT 0.84 max.
Calculated output power (forward converter mode) 70W (100kHz)
ø0.35 2UEW 100Ts
NI limit vs. AL-value for PC44PQ20/16 gapped core (Typical)
10 3 Temperature: 100˚C
AL-value vs. Air gap length for PC44PQ20/16 core (Typical)
10 3
Temperature rise vs. Total loss for PQ20/16 core (Typical) (Ambient temperature: 25°C)
100 Temperature rise of hot spot ∆T (˚C)
20% 10 2
AL-value(nH/N2)
40% NI limit (AT)
Center pole gap Spacer gap 10 2
50
101
NI limit=28821×A L–1.022 (20%) NI limit=38270×A L–1.038 (40%) A L =22862×NI limit – 0.978 (20%) A L =26409×NI limit – 0.964 (40%) 10 2 A L-value (nH/N 2) 10 3
101
0.1
1 Air gap length (mm)
10
0
05
1
2 3 Total loss Pm (W)
4
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
Measuring conditions • Coil: ø0.35 2UEW 100Ts • Frequency: 1kHz • Level: 0.5mA
Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)
Measuring point Core
Coil
• All specifications are subject to change without notice.
http://www.Datasheet4U.com/
002-01 / 20040913 / e148.fm
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PQ Series PQ20/20 Cores
Parameter
Core factor Effective magnetic path length Effective cross-sectional area Effective core volume Cross-secti onal center pole area Minimum cross-sectional center pole area Cross-secti onal winding area of core Weight (approx.) C1 em Ae Ve Acp Acp min. Acw mm–1 m mm2 mm3 mm2 mm2 mm2 g 0.738 45.4 62 2790 60.8 58.1 65.8 15
ø8.8 ± 0.2 14.3 ± 0.3 20.2 ± 0.2
18.0 ± 0.4
14.0 ± 0.4
Dimensions in mm
20.5 ± 0.4
12.0– 0
Part No. PC44PQ20/20Z-12 PC50PQ20/20Z-12
∗ Coil:
AL-value (nH/N2) 3150±25% (1kHz, 0.5mA)∗ 4290 min. (100kHz, 200mT) 2000±25% (1kHz, 0.5mA)∗
Core loss (W) at 100°C 100kHz, 200mT 500kHz, 50mT 1.02 max. 0.33 max.
Calculated output power (forward converter mode) 92W (100kHz) 187W (500kHz)
ø0.35 2UEW 100Ts
NI limit vs. AL-value for PC44PQ20/20 gapped core (Typical)
10 3 Temperature: 100˚C
AL-value vs. Air gap length for PC44PQ20/20 core (Typical)
10 3
Temperature rise vs. Total loss for PQ20/20 core (Typical) (Ambient temperature: 25°C)
100 Temperature rise of hot spot ∆T (˚C) 10
AL-value(nH/N2)
40% NI limit (AT) 10 2 20%
Center pole gap Spacer gap 10 2
50
101
NI limit=27144×A L–1.017(20%) NI limit=33834×A L–1.018(40%) A L =22840×NI limit .