TDK EL Series EL0405 - Manual (Page 3)

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002-06 / 20080701 / e512_el0405.fm
• All specifications are subject to change without notice.
TYPICAL ELECTRICAL CHARACTERISTICS
INDUCTANCE CHANGE vs. DC SUPERPOSITION
CHARACTERISTICS
INDUCTANCE CHANGE vs. TEMPERATURE
CHARACTERISTICS
Q vs. FREQUENCY CHARACTERISTICS
DC current(mA)
1
10
5
1
100
1000
500
50
10000
5000
5 10 50 500 100 1000
Inductance
( µ
H
)
150 µH
100 µH
47 µH
18 µH
8.2 µH
4.7 µH
470 µH
A
L=0.1H
5A
C=20000 µF
Test circuit
DC
LCR meter
Specimen
YHP model-4275A or equivalent
0 20
2
3
1
–2
–3
–1
40 60 80
∆
L/
L
( %
)
Temperature(˚C)
–20
47 µH
3.3 µH
470 µH
3.3 µH
47 µH
470 µH
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
3.3 µH: 1MHz
47 µH: 1MHz
470 µH: 50kHz
Test equipment:
LCR METER YHP4275A
Frequency(MHz)
0.1 1 0.5 10 5
10
20
50
100
200
500
1000
Q
100 50
0.47 µH
4.7 µH 47 µH
470 µH
Test equipment: Q METER YHP4340A