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
ꢀꢀ
LQN21Aꢀꢀꢀꢀ04
•Broad inductance range
•Inductance tolerance: ±0.5nH (≤8.2nH); ±5% (10nH–470nH)
ꢀꢀ
LQN21A
•Tight Inductance Tolerance ±2%
ꢀꢀ
LQN21Aꢀꢀꢀꢀ44
•High Q •High Rated Current •Low DCR
PART NUMBERING SYSTEM
LQN
21
A
3N3
D
04
M00
TYPE
LQN: Non-epoxy
coated
SIZE
CORE MATERIAL
A: Air Core
INDUCTANCE CODE
3N3: 3.3nH
TOLERANCE
ELECTRODE
UNMARKED
21: 2.0 x 1.5mm (0805)
D: 0.5nH
J: 5%
MATERIAL
04/44: Nickel &
Solder
G: 2%
SPECIFICATIONS
Dimensions: mm
ꢀ
ꢀ
Inductance
Tolerance
Q
1
2
Self-
Minimum Value
DC
Allowable Operating
Test
Peak
resonant
Frequency
(MHz min.)
Part Number
Nominal
Resistance
(Ohms max.)
Current
(mA)
Temp.
Range
Test
Frequency Value
Q
Frequency
Value (nH)
Value
(MHz)
(Typ.)
(MHz)
ꢀ
LQN21A3N3D04
LQN21A6N8D04
LQN21A8N2D04
LQN21A10NJ04
LQN21A12NJ04
LQN21A15NJ04
LQN21A18NJ04
LQN21A22NJ04
LQN21A27NJ04
LQN21A33NJ04
LQN21A39NJ04
LQN21A47NJ04
LQN21A56NJ04
LQN21A68NJ04
LQN21A82NJ04
LQN21AR10J04
LQN21AR12J04
LQN21AR15J04
LQN21AR18J04
LQN21AR22J04
LQN21AR27K04
LQN21AR33K04
LQN21AR39K04
LQN21AR47K04
3.3
6.8
8.2
10
12
15
18
22
27
33
10
20
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
6000
5400
3900
3300
3200
2700
2600
2100
2300
1900
1700
1600
1500
1200
1100
900
750
350
700
500
550
500
400
350
910
680
630
1320
680
630
690
720
540
570
730
450
430
460
320
350
320
390
250
240
190
180
170
160
LQN21Aꢀꢀꢀꢀ04
ꢀ
0.5nH
70
ꢀ
ꢀ
80
65
ꢀ
ꢀ
30
40
250
0805
ꢀ
ꢀ
70
1.5 ± 0.2
1.5 ± 0.2
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
–25°C
~
+85°C
100
65
80
65
70
65
60
70
50
45
1.78 max.
39
47
56
68
5%
200
150
2.0 ± 0.2
1.5 ± 0.2
82
100
120
150
180
220
270
330
390
470
30
35
0.5
min.
0.5
min.
0.5
min.
100
50
15
25.2
10%
10
Tight Tolerance
ꢀ
LQN21A33NG04
33
10
20
0.15
1900
570
ꢀ
LQN21A33NG04
39
47
56
68
82
100
120
150
180
70
0.09
0.23
0.26
0.23
0.42
0.55
0.40
0.68
0.71
0.02
1700
1600
1500
1200
1100
900
750
350
700
500
730
450
430
460
320
270
320
260
250
240
ꢀ
LQN21A33NG04
ꢀ
LQN21A33NG04
80
65
–25°C
~
+85°C
ꢀ
LQN21A33NG04
ꢀ
LQN21A33NG04
2%
100
30
250
ꢀ
LQN21AR10G04
ꢀ
LQN21AR12G04
70
ꢀ
LQN21AR15G04
ꢀ
LQN21AR18G04
65
80
ꢀ
LQN21AR22G04
220
ꢀ
ꢀ
1: Measured with LCR meter YHP4191A, measuring tap 16193A.
2: Measured with Network Analyzer HP8753C.
ꢀ
Available as standard through authorized Murata Electronics Distributors.
CG01-I
221