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KMP_1800RC_B04 Page 1 of 2
1800R Series
Radial Lead Inductors
www.murata-ps.com
www.murata-ps.com/support
For full details go to
www.murata-ps.com/rohs
FEATURES
RoHS compliant
Radial format
Up to 5.35A IDC
4.7μH to 10mH
Low DC resistance
Compact size
MIL-I-23053/5 class III sleeving
Fully tinned leads
Supplied in packs of 10
Custom & axial parts available
Backward compatible with
Sn/Pb soldering systems
DESCRIPTION
The 1800R Series of inductors are particularly
suited to use with a wide variety of switching
regulators. Offering high current handling with a
small footprint, the devices are ideal where space
is at a premium.
SELECTION GUIDE
Order Code
Inductance
(1kHz, 0.1VAC)
DC Current1
DC Resistance
Q @ f kHz
SRF
±10%
Max.
Nom.
μH
A
mΩ
Q
f
MHz
18R472C
4.72
5.35
9.0
106
1000
35.1
18R682C
6.8
4.15
12.0
73
500
26.3
18R103C
10.0
3.45
15.0
59
500
23.8
18R153C
15.0
3.00
18.0
55
500
17.0
18R223C
22.0
2.42
25.0
51
500
14.1
18R333C
33.0
2.00
40.0
48
500
11.5
18R473C
47.0
1.65
55.0
46
500
9.85
18R683C
68.0
1.35
70.0
27
100
8.29
18R104C
100.0
1.20
100.0
40
100
7.40
18R154C
150.0
1.10
165.0
40
100
5.58
18R224C
220.0
0.90
230.0
39
100
4.00
18R254C
250.0
0.80
255.0
40
100
3.85
18R334C
330.0
0.73
335.0
49
100
3.57
18R474C
470.0
0.60
465.0
50
100
2.81
18R684C
680.0
0.53
630.0
48
100
2.43
18R105C
1.0mH
0.44
1.0Ω
92
50
1.82
18R155C
1.5mH
0.33
1.5Ω
106
50
1.60
18R225C
2.2mH
0.30
2.2Ω
106
50
1.41
18R335C
3.3mH
0.22
3.5Ω
139
50
1.04
18R475C
4.7mH
0.20
4.6Ω
126
40
0.87
18R685C
6.8mH
0.15
7.0Ω
143
40
0.71
18R106C
10.0mH
0.13
12.0Ω
142
40
0.58
TYPICAL CORE/WIRE CHARACTERISTICS
Inductance Temperature
Coefcient
Resistance Temperature
Coefcient
Curie Temperature
(T
C
)
Saturation Flux
(B
SAT
)
430ppm
4000ppm
190°C
325mT
ABSOLUTE MAXIMUM RATINGS
Operating free air temperature range
0°C to 70°C
Storage temperature range
-55°C to 125°C
SOLDERING INFORMATION3
Peak wave solder temperature
300C for 10 seconds
Pin nish
Bright tin
All specications typical at T
A
=25°C
1 Maximum DC current occurs when either the inductance falls to 90% of its nominal value or when its temperature rise reaches 30°C,
whichever is sooner.
2 Tolerance ±15%.
3 For further information, please visit www.murata-ps.com/rohs