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002-06 / 20080701 / e512_el0405.fm

• All specifications are subject to change without notice.

TYPICAL ELECTRICAL CHARACTERISTICSINDUCTANCE CHANGE vs. DC SUPERPOSITIONCHARACTERISTICSINDUCTANCE CHANGE vs. TEMPERATURECHARACTERISTICSQ vs. FREQUENCY CHARACTERISTICS
DC current(mA)
1
10
5
1
100
1000
500
50
10000
5000
5 10 50 500100 1000
Inductance(µH)
150µH
100µH
47µH
18µH
8.2µH
4.7µH
470µH
A
L=0.1H
5A
C=20000µF
Test circuit
DC
LCR meter
Specimen
YHP model-4275A or equivalent
020
2
3
1
–2
–3
–1
40 60 80
∆L/L(%)
Temperature(˚C)
–20
47µH
3.3µH
470µH
3.3µH
47µH
470µH
Test terminal: Measuring at after the correction
Cycle: +20˚C → +80˚C → +20˚C → –20˚C
Temperature: Kept stabilized for 30+5, –0min each
Measuring frequency
3.3µH: 1MHz
47µH: 1MHz
470µH: 50kHz
Test equipment:
LCR METER YHP4275A
Frequency(MHz)
0.1 10.5 105
10
20
50
100
200
500
1000
Q
10050
0.47µH
4.7µH
47µH
470µH
Test equipment: Q METER YHP4340A