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O05E7.pdf 02.3.28
Chip Coils
for Choke Winding Type LQH31C/LQH32C/LQH43C Series
LQH31C Series
2.3±0.2
1.6±0.2
■ Features
The LQH31C series consists of miniature chip inductors
with low DC resistance, high current capacity, and
high impedance characteristics. It is suitable for use
1.6±0.2
as choke coils in DC power supply circuits. High rated
3.2±0.3
current up to 970mA is available.
(in mm)
0.7min
0.7min
0.7min
Rated
Current
(mA)
Self Resonance
Frequency
(MHz)
Inductance
Test Frequency
(MHz)
DC Resistance
(ohm)
Part Number
EIA
(µH)
LQH31CNR12M01
LQH31CNR22M01
LQH31CNR47M01
LQH31CN1R0M01
LQH31CN2R2M01
LQH31CN4R7M01
LQH31CN100K01
LQH31CN220K01
LQH31CN470K01
LQH31CN101K01
0.12 ±20%
0.22 ±20%
0.47 ±20%
1 ±20%
1
1
1
1
1
1
1
1
1
1
970
850
700
510
430
340
230
160
100
80
0.08 ±40%
0.1 ±40%
0.15 ±40%
0.28 ±30%
0.41 ±30%
0.65 ±30%
1.3 ±30%
3.0 ±30%
8.0 ±30%
12 ±30%
250 min.
250 min.
180 min.
100 min.
50 min.
31 min.
20 min.
14 min.
10 min.
7 min.
1206
1206
1206
1206
1206
1206
1206
1206
1206
1206
2.2 ±20%
4.7 ±20%
10 ±10%
22 ±10%
47 ±10%
100 ±10%
Operating Temp. Range : -25°C to 85°C
10
■ Impedance-Frequency Characteristics
■ Inductance-Current Characteristics
1000
100
100µH
100µH
10µH
100
10
1.0µH
1
0.1
10µH
10
0.01
0.01
0.1
1
10
100
1000
Frequency (MHz)
1.0µH
1
5
10
50
100
500
Current (mA)
42