1
Data Sheet
!Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifi cations are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifi cations because there is no space for detailed specifi cations. Therefore, please approve our product
specifi cations or transact the approval sheet for product specifi cations before ordering.
http://www.murata.com/
1
Inductors (Coils) > Chip Inductor (Chip Coil) > for General Use Multilayer Type
2012.3.1
oThis data sheet is applied for CHIP INDUCTORS (CHIP COILS) used for General Electronics equipment for your design.
Chip Inductor (Chip Coil) for General Use Multilayer Type
LQM21N Series (0805 Size)
c Dimensions
2.0±0.2
0.5±0.3
1.25±0.2
t
(in mm)
Inductance: 0.1 to 2.2μH
Dimension of t Inductance: 2.7 to 4.7μH
0.85±0.2
1.25±0.2
c Packaging
Code Packaging Minimum Quantity
D180mm Paper Tape 4000 *1
L180mm Embossed Tape 3000 *2
J330mm Paper Tape 10000 *1
K330mm Embossed Tape 10000 *2
BBulk(Bag) 1000
*1: only 0.1 to 2.2µH
*2: only 2.7 to 4.7µH
c Rated Value (p: packaging code)
Part Number Inductance Test Frequency Rated Current Max. of DC Resistance Q (min.) Test Frequency Self Resonance Frequency (min.)
LQM21NNR10K10p
0.1µH ±10% 25MHz 250mA 0.26ohm 20 25MHz 340MHz
LQM21NNR12K10p
0.12µH ±10% 25MHz 250mA 0.29ohm 20 25MHz 310MHz
LQM21NNR15K10p
0.15µH ±10% 25MHz 250mA 0.32ohm 20 25MHz 270MHz
LQM21NNR18K10p
0.18µH ±10% 25MHz 250mA 0.35ohm 20 25MHz 250MHz
LQM21NNR22K10p
0.22µH ±10% 25MHz 250mA 0.38ohm 20 25MHz 220MHz
LQM21NNR27K10p
0.27µH ±10% 25MHz 250mA 0.42ohm 20 25MHz 200MHz
LQM21NNR33K10p
0.33µH ±10% 25MHz 250mA 0.48ohm 20 25MHz 180MHz
LQM21NNR39K10p
0.39µH ±10% 25MHz 200mA 0.53ohm 25 25MHz 165MHz
LQM21NNR47K10p
0.47µH ±10% 25MHz 200mA 0.57ohm 25 25MHz 150MHz
LQM21NNR56K10p
0.56µH ±10% 25MHz 150mA 0.63ohm 25 25MHz 140MHz
LQM21NNR68K10p
0.68µH ±10% 25MHz 150mA 0.72ohm 25 25MHz 125MHz
LQM21NNR82K10p
0.82µH ±10% 25MHz 150mA 0.81ohm 25 25MHz 115MHz
LQM21NN1R0K10p
1µH ±10% 10MHz 50mA 0.40ohm 45 10MHz 107MHz
LQM21NN1R2K10p
1.2µH ±10% 10MHz 50mA 0.47ohm 45 10MHz 97MHz
LQM21NN1R5K10p
1.5µH ±10% 10MHz 50mA 0.50ohm 45 10MHz 87MHz
LQM21NN1R8K10p
1.8µH ±10% 10MHz 50mA 0.57ohm 45 10MHz 80MHz
LQM21NN2R2K10p
2.2µH ±10% 10MHz 30mA 0.63ohm 45 10MHz 71MHz
LQM21NN2R7K10p
2.7µH ±10% 10MHz 30mA 0.69ohm 45 10MHz 66MHz
LQM21NN3R3K10p
3.3µH ±10% 10MHz 30mA 0.80ohm 45 10MHz 59MHz
LQM21NN3R9K10p
3.9µH ±10% 10MHz 30mA 0.89ohm 45 10MHz 53MHz
LQM21NN4R7K10p
4.7µH ±10% 10MHz 30mA 1.00ohm 45 10MHz 47MHz
Class of Magnetic Shield: Magnetic shield of ferrite
Operating Temperature Range (Self-temperature rise is not included): -40 to +85°C
Continued on the following page.
2
Data Sheet
!Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifi cations are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifi cations because there is no space for detailed specifi cations. Therefore, please approve our product
specifi cations or transact the approval sheet for product specifi cations before ordering.
http://www.murata.com/
2
Inductors (Coils) > Chip Inductor (Chip Coil) > for General Use Multilayer Type
2012.3.1
oThis data sheet is applied for CHIP INDUCTORS (CHIP COILS) used for General Electronics equipment for your design.
Continued from the preceding page.
c Q-Frequency Characteristics (Typ.)
Frequency (MHz)
100
0
80
60
20
40
1 10 100 1000
Q
4.7μH
1.0μH
1.8μH 0.1μH
0.22μH
0.18μH
c Inductance-Current Characteristics (Typ.)
10
100
1
0.1
0.01
Inductance (μH)
1 10 100 1000
Current (mA)
1.0μH
1.8μH
4.7μH
0.22μH
0.10μH
0.82μH
c !Caution/Notice
!Caution (Rating)
Do not use products beyond the rated current as
this may create excessive heat.
Notice
Solderability of Tin plating termination chip might be
deteriorated when low temperature soldering profi le
where peak solder temperature is below the Tin melting
point is used. Please confi rm the solderability of Tin
plating termination chip before use.
