Please read CAUTION and Notice in this catalog for safety. This catalog has only typical specifications. Therefore you are requested
to approve our product specification or to transact the approval sheet for product specification, before your ordering. O05E7.pdf 02.3.28
42
10
Chip Coils
for Choke Winding Type LQH31C/LQH32C/LQH43C Series
LQH31C Series
■ 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
as choke coils in DC power supply circuits. High rated
current up to 970mA is available.
2.3±0.2
1.8±0.2
1.6±0.2
1.6±0.2
3.2±0.3
0.7min 0.7min 0.7min (in mm)
Part Number Inductance
(µH) Test Frequency
(MHz)
Rated
Current
(mA)
DC Resistance
(ohm)
Self Resonance
Frequency
(MHz) EIA
LQH31CNR12M01 0.12 ±20% 1 970 0.08 ±40% 250 min. 1206
LQH31CNR22M01 0.22 ±20% 1 850 0.1 ±40% 250 min. 1206
LQH31CNR47M01 0.47 ±20% 1 700 0.15 ±40% 180 min. 1206
LQH31CN1R0M01 1 ±20% 1 510 0.28 ±30% 100 min. 1206
LQH31CN2R2M01 2.2 ±20% 1 430 0.41 ±30% 50 min. 1206
LQH31CN4R7M01 4.7 ±20% 1 340 0.65 ±30% 31 min. 1206
LQH31CN100K01 10 ±10% 1 230 1.3 ±30% 20 min. 1206
LQH31CN220K01 22 ±10% 1 160 3.0 ±30% 14 min. 1206
LQH31CN470K01 47 ±10% 1 100 8.0 ±30% 10 min. 1206
LQH31CN101K01 100 ±10% 1 80 12 ±30% 7 min. 1206
Operating Temp. Range : -25°C to 85°C
■ Impedance-Frequency Characteristics
0.01
0.1
1
10
100
1000
0.01 0.1 1 10 100 1000
Frequency (MHz)
Impedance (kΩ)
100µH10µH
1.0µH
■ Inductance-Current Characteristics
100µH
10µH
1.0µH
100
10
1
5 10 50 100 500
Current (mA)
Inductance (µH)
Please read CAUTION and Notice in this catalog for safety. This catalog has only typical specifications. Therefore you are requested
to approve our product specification or to transact the approval sheet for product specification, before your ordering. O05E7.pdf 02.3.28
43
10
LQH32C_11/_21
The LQH32C series consists of miniature chip coils
with low DC resistance, high current capacity, and
high impedance characteristics.
These features are made possible by the development of
Murata's innovative automatic winding techniques.
They are excellent for use as choke coils in DC power
supply circuits.
■ Features (LQH32C_11/_21)
1. The low DC resistance means high current and high
inductance.
For inductance ranging from 0.15 micro H to
560 micro H, LQH32C coils have very low DC
resistance.
2. The series exhibit low voltage drops and small
variations in inductance with respect to
temperature rise and DC current level. This makes
them excellent for use as power supply line choke
coils.
3. The series has excellent solder heat resistance.
Both flow and reflow soldering methods can be
employed.
in mm
2.5±0.2 2.5±0.2
2.0±0.2
2.5±0.2
3.2±0.3
0.7min 0.7min 0.7min
LQH32C_11
(in mm)
2.5±0.2 2.5±0.2
2.0±0.2
2.5±0.2
3.2±0.3
0.9±0.3 1.3±0.2 0.9±0.3
LQH32C_21
Part Number Inductance
(µH) Test Frequency Rated
Current
(mA)
DC Resistance
(ohm)
Self Resonance
Frequency
(MHz) EIA
LQH32CNR15M11 0.15 ±20% 1MHz 1450 0.028 ±30% 400 min. 1210
LQH32CNR27M11 0.27 ±20% 1MHz 1250 0.034 ±30% 250 min. 1210
LQH32CNR47M11 0.47 ±20% 1MHz 1100 0.042 ±30% 150 min. 1210
LQH32CN1R0M11 1 ±20% 1MHz 1000 0.06 ±30% 100 min. 1210
LQH32CN2R2M11 2.2 ±20% 1MHz 790 0.097 ±30% 64 min. 1210
LQH32CN4R7M11 4.7 ±20% 1MHz 650 0.15 ±30% 43 min. 1210
LQH32CN100K11 10 ±10% 1MHz 450 0.3 ±30% 26 min. 1210
LQH32CN1R0M21 1.0 ±20% 1MHz 800 0.06 ±30% 96 min. 1210
LQH32CN2R2M21 2.2 ±20% 1MHz 600 0.13 ±30% 64 min. 1210
LQH32CN4R7M21 4.7 ±20% 1MHz 450 0.2 ±30% 43 min. 1210
LQH32CN100K21 10 ±10% 1MHz 300 0.44 ±30% 26 min. 1210
LQH32CN220K21 22 ±10% 1MHz 250 0.71 ±30% 19 min. 1210
LQH32CN470K21 47 ±10% 1MHz 170 1.3 ±30% 15 min. 1210
LQH32CN101K21 100 ±10% 1MHz 100 3.5 ±30% 10 min. 1210
LQH32CN221K21 220 ±10% 1MHz 70 8.4 ±30% 6.8 min. 1210
LQH32CN331K21 330 ±10% 1MHz 60 10 ±30% 5.6 min. 1210
LQH32CN391K21 390 ±10% 1MHz 60 17 ±30% 5 min. 1210
LQH32CN471K21 470 ±10% 1kHz 60 19 ±30% 5 min. 1210
LQH32CN561K21 560 ±10% 1kHz 60 22 ±30% 5 min. 1210
Operating Temp. Range : -25°C to 85°C
Please read CAUTION and Notice in this catalog for safety. This catalog has only typical specifications. Therefore you are requested
to approve our product specification or to transact the approval sheet for product specification, before your ordering. O05E7.pdf 02.3.28
44
10
■ Impedance-Frequency Characteristics
LQH32C_11/_21
0.01
0.1
1
10
100
1000
0.01 0.1 1 10 100 1000
Frequency (MHz)
Impedance (kΩ)
100µH
10µH
1.0µH
■ Inductance-Current Characteristics
LQH32C_11/_21
1 10 1000100
1000
100
10
1
0.1
DC Current (mA)
Inductance (µH)
100µH
10µH
1.0µH
Please read CAUTION and Notice in this catalog for safety. This catalog has only typical specifications. Therefore you are requested
to approve our product specification or to transact the approval sheet for product specification, before your ordering. O05E7.pdf 02.3.28
45
10
LQH32C_51 (Low Profile Type)
The LQH32C_51 series consists of miniature chip coils
with low DC resistance, high current capacity, and
high impedance characteristics.
These features are made possible by the development of
Murata's innovative winding techniques. They are
excellent for use as choke coils in DC power supply
circuits.
■ Features (LQH32C_51)
1. The series have a wide inductance range of
1.0 micro H to 100 micro H.
2. The series exhibit low voltage drops and small
variations in inductance with respect to
temperature e and DC current level. This makes them
excellent or use as power supply line choke coils.
3. The series has excellent solder heat resistance.
Both flow and reflow soldering methods can be
employed.
2.5±0.2 2.5±0.2
1.55±0.15
2.5±0.2
3.2±0.3 A : 2.8 max.
A
0.9±0.3 1.3±0.2 0.9±0.3
A
(in mm)
LQH32C_51
Part Number Inductance
(µH) Test Frequency
(MHz)
Rated
Current
(mA)
DC Resistance
(ohm)
Self Resonance
Frequency
(MHz) EIA
LQH32CN1R0M51 1.0 ±20% 1 1000 0.060 ±30% 100 min. 1210
LQH32CN2R2M51 2.2 ±20% 1 790 0.097 ±30% 64 min. 1210
LQH32CN4R7M51 4.7 ±20% 1 650 0.15 ±30% 43 min. 1210
LQH32CN100K51 10 ±10% 1 450 0.30 ±30% 26 min. 1210
LQH32CN150K51 15 ±10% 1 300 0.58 ±30% 26 min. 1210
LQH32CN220K51 22 ±10% 1 250 0.71 ±30% 19 min. 1210
LQH32CN330K51 33 ±10% 1 200 1.1 ±30% 17 min. 1210
LQH32CN470K51 47 ±10% 1 170 1.3 ±30% 15 min. 1210
LQH32CN680K51 68 ±10% 1 130 2.2 ±30% 12 min. 1210
LQH32CN101K51 100 ±10% 1 100 3.5 ±30% 10 min. 1210
Operating Temp. Range : -25°C to 85°C
■ Impedance-Frequency Characteristics
LQH32C_51
1 10 100
10
100
1
0.1
0.01
0.001 1000
10uH
1.0uH
Impedance (kΩ)
Frequency(MHz)
100uH
■ Inductance-Current Characteristics
LQH32C_51
1 10 100
100
1000
10
1
0.1 1000
100uH
10uH
1.0uH
DC Current (mA)
Inductance (µH)
Please read CAUTION and Notice in this catalog for safety. This catalog has only typical specifications. Therefore you are requested
to approve our product specification or to transact the approval sheet for product specification, before your ordering. O05E7.pdf 02.3.28
46
10
LQH43C Series
The LQH43C series consists of miniature chip inductors
with low DC resistance, high current capacity, and
high impedacne characteristics. It is suitable for use
as choke coils in DC power supply circuits.
■ Features
1. The LQH43C series has an open magnetic structure.
Various inductance range is available.
2. The series exhibits low voltage drops and small
change in inductance with respect to temperature
rise and DC current level. This makes them
excellent to use as power supply line choke coils.
3. The LQH43C has miniature size 4.5mmx3.2mm and
realized low height 2.8mm at max.
4. The series has excellent solder heat resistance.
Both flow and reflow soldering methods can be
employed.
3.6±0.2
4.5±0.3
2.6±0.2
3.2±0.2
3.2±0.2
1.0min 1.0min 1.0min in mm
Part Number Inductance
(µH) Test Frequency Rated
Current
(mA)
DC Resistance
(ohm)
Self Resonance
Frequency
(MHz) EIA
LQH43CN1R0M01 1.0 ±20% 1MHz 1080 0.08 max. 100 1812
LQH43CN1R5M01 1.5 ±20% 1MHz 1000 0.09 max. 85 1812
LQH43CN2R2M01 2.2 ±20% 1MHz 900 0.11 max. 60 1812
LQH43CN3R3M01 3.3 ±20% 1MHz 800 0.13 max. 47 1812
LQH43CN4R7M01 4.7 ±20% 1MHz 750 0.15 max. 35 1812
LQH43CN6R8M01 6.8 ±20% 1MHz 720 0.20 max. 30 1812
LQH43CN100K01 10 ±10% 1MHz 650 0.24 max. 23 1812
LQH43CN150K01 15 ±10% 1MHz 570 0.32 max. 20 1812
LQH43CN220K01 22 ±10% 1MHz 420 0.6 max. 15 1812
LQH43CN330K01 33 ±10% 1MHz 310 1.0 max. 12 1812
LQH43CN470K01 47 ±10% 1MHz 280 1.1 max. 10 1812
LQH43CN680K01 68 ±10% 1MHz 220 1.7 max. 8.4 1812
LQH43CN101K01 100 ±10% 1MHz 190 2.2 max. 6.8 1812
LQH43CN151K01 150 ±10% 1MHz 130 3.5 max. 5.5 1812
LQH43CN221K01 220 ±10% 1MHz 110 4.0 max. 4.5 1812
LQH43CN331K01 330 ±10% 1MHz 100 6.8 max. 3.6 1812
LQH43CN471K01 470 ±10% 1kHz 90 8.5 max. 3.0 1812
Operating Temp. Range : -25°C to 85°C
■ Impedance-Frequency Characteristics
0.01 0.1 1 10010
100
1000
10
1
0.1
0.01 1000
Impedance (kΩ)
Frequency (MHz)
1.0µH
100µH
10µH
■ Inductance-Current Characteristics
1 10 100 100001000
1000
100
10
1
0.1
DC Current (mA)
Inductance (µH)
100µH
10µH
1.0µH
