SURFACE MOUNT INDUCTORS
CHIP INDUCTORS
LQN21A Series
The LQN21A Series consists of air-core chip coils using a
subminiature alumina core as a bobbin. The High Q values
at high frequencies and high self-resonant frequencies make
this coil perfect for use in the high frequency circuits of
communications equipment.
FEATURES
s
LQN21A
04
•Broad inductance range
•Inductance tolerance: ±0.5nH (≤8.2nH); ±5% (10nH–470nH)
s
LQN21A
•Tight Inductance Tolerance ±2%
s
LQN21A
44
•High Q •High Rated Current •Low DCR
A
CORE MATERIAL
A: Air Core
PART NUMBERING SYSTEM
LQN
TYPE
LQN: Non-epoxy
coated
21
SIZE
21: 2.0 x 1.5mm (0805)
3N3
D
04
TOLERANCE
D: ±0.5nH
J: ±5%
G: ±2%
M00
ELECTRODE
MATERIAL
04/44: Nickel &
Solder
UNMARKED
INDUCTANCE CODE
3N3: 3.3nH
SPECIFICATIONS
Inductance
Dimensions: mm
Part Number
LQN21A3N3D04
LQN21A6N8D04
LQN21A8N2D04
LQN21A10NJ04
LQN21A12NJ04
Nominal
Value (nH) Tolerance
3.3
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
33
39
47
56
68
82
100
120
150
180
220
Test
Frequency
(MHz)
LQN21A
04
±0.5nH
Q
1
Minimum Value
Peak
Test
Value Q
Frequency
(Typ.) Value
(MHz)
10
70
20
80
65
70
30
250
2
Self-
DC
Allowable Operating
Resistance resonant Current
Temp.
(Ohms max.) Frequency (mA)
Range
(MHz min.)
0.05
0.11
0.12
0.03
0.11
0.12
0.10
0.09
0.17
0.15
0.09
0.23
0.26
0.23
0.42
0.38
0.40
0.47
0.71
0.70
2.00
2.20
2.50
2.80
0.15
0.09
0.23
0.26
0.23
0.42
0.55
0.40
0.68
0.71
0.02
6000
5400
3900
3300
3200
2700
2600
2100
2300
1900
1700
1600
1500
1200
1100
900
750
350
700
500
550
500
400
350
1900
1700
1600
1500
1200
1100
900
750
350
700
500
910
680
630
1320
680
630
690
720
540
570
730
450
430
460
320
350
320
390
250
240
190
180
170
160
570
730
450
430
460
320
270
320
260
250
240
0805
1.5 ± 0.2
1.5 ± 0.2
LQN21A15NJ04
LQN21A18NJ04
LQN21A22NJ04
LQN21A27NJ04
LQN21A33NJ04
1.78 max.
100
LQN21A39NJ04
LQN21A47NJ04
LQN21A56NJ04
±5%
2.0 ± 0.2
1.5 ± 0.2
LQN21A68NJ04
LQN21A82NJ04
LQN21AR10J04
LQN21AR12J04
LQN21AR15J04
LQN21AR18J04
LQN21AR22J04
LQN21AR27K04
LQN21AR33K04
LQN21AR39K04
LQN21AR47K04
0.5
0.5
min. 0.5 min.
min.
65
80
65
70
65
60
70
50
45
–25°C
~
+85°C
40
200
150
30
35
100
50
±10%
10
15
25.2
Tight Tolerance
LQN21A33NG04
LQN21A33NG04
LQN21A33NG04
LQN21A33NG04
LQN21A33NG04
LQN21A33NG04
LQN21AR10G04
LQN21AR12G04
LQN21AR15G04
LQN21AR18G04
LQN21AR22G04
10
70
80
±2%
100
65
30
250
20
–25°C
~
+85°C
SURFACE MOUNT
INDUCTORS
70
65
80
2: Measured with Network Analyzer HP8753C.
1: Measured with LCR meter YHP4191A, measuring tap 16193A.
Available as standard through authorized Murata Electronics Distributors.
CG01-I
221
SURFACE MOUNT INDUCTORS
CHIP INDUCTORS
LQN21A Series
SPECIFICATIONS
Dimensions: mm
Part Number
LQN21A2N7D44
LQN21A3N1D44
LQN21A3N3D44
LQN21A5N6D44
1.78 max.
S
elf-
DC
resonant Allowable Operating
Test
Nominal Test
800 1.5
Nominal
Resistance
Current
Temp.
Tolerance Frequency Value Frequency MHz GHz (Ohms max.) Frequency (mA)
Range
Value (nH)
(min.) (MHz) (Typ.) (Typ.)
(MHz)
(MHz min.)
2.7
3.1
3.3
5.6
6.8
8.6
10
12
15
18.8
21
27
120
20
±0.5nH
35
95
250
85
100
40
105
95
115
100
90
75
65
45
0.03
0.04
0.05
0.06
85
110
0.02
6000
1900
1800
1700
1500
1400
1300
1320
1100
1000
950
900
Inductance
Q
LQN21A
1.5 ± 0.2
44
1.5 ± 0.2
LQN21A6N8D44
LQN21A8N6D44
1.5 ± 0.2
100
±5%
2.0 ± 0.2
LQN21A10NJ44
LQN21A12NK44
LQN21A15NK44
LQN21A18NK44
LQN21A21NK44
LQN21A27NK44
±10%
0.5
0.5
min. 0.5 min.
min.
5400
3900
3300
3200
3100
2600
2200
1800
–25°C
~
+85°C
1: Measured with LCR meter YHP4191A, measuring tap 16193A.
2: Measured with Network Analyzer HP8753C.
Available as standard through authorized Murata Electronics Distributors.
TYPICAL ELECTRICAL CHARACTERISTICS
Q-FREQUENCY CHARACTERISTICS
LQN21A
04
100
100
80
80
60
330nH
470nH
Q
40
20
10nH
33nH
220nH
1
5
10
50 100
500 1000
5000 10000
Frequency (MHz)
0
3.3nH
220nH 33nH 10nH
Q-FREQUENCY CHARACTERISTICS
LQN21A
(Tight Inductance Tolerance)
60
Q
40
20
0
1
10
100
Frequency (MHz)
1000
10000
LQN21A
150
44
3.3nH
INDUCTANCE-FREQUENCY CHARACTERISTICS
LQN21A
44
100
27nH
50
120
90
Q
12nH
60
Inductance (nH)
40
30
20
12nH
10
30
27nH
0
10
50
100
500
1000
5000 10000
Frequency (MHz)
0
10
3.3nH
50
100
500 1000
5000 10000
Frequency (MHz)
222
CG01-I
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