1800R SERIES
Radial Lead Inductors
SELECTION GUIDE
Inductance
DC
Resistance
DC Current
Continuous
Nominal Q
at f kHz
Nominal Self
Resonant
Frequency
Order Code
18R472
18R682
18R103
18R153
18R223
18R333
18R473
18R683
18R104
18R154
18R224
±10% (at 1kHz)
µH
4.7
1
6.8
10
15
22
33
47
68
100
150
220
250
330
470
680
1mH
1.5mH
2.2mH
3.3mH
4.7mH
6.8mH
10mH
mΩ
MAX
9
12
15
18
25
40
55
70
100
165
230
255
335
465
630
1.0Ω
1.5Ω
2.2Ω
3.5Ω
4.6Ω
7.0Ω
12Ω
A
MAX
5.35
4.15
3.45
3.00
2.42
2.00
1.65
1.35
1.20
1.10
0.90
0.80
0.73
0.60
0.53
0.44
0.33
0.30
0.22
0.20
0.15
0.13
Q
106
73
59
55
51
48
46
27
40
40
39
40
49
50
48
92
106
106
139
126
143
142
f
1000
500
500
500
500
500
500
100
100
100
100
100
100
100
100
50
50
50
50
40
40
40
MHz
35.1
26.3
23.8
17.0
14.1
11.5
9.85
8.29
7.40
5.58
4.00
3.85
3.57
2.81
2.43
1.82
1.60
1.41
1.04
0.87
0.71
0.58
FEATURES
s
Radial Format
s
Up to 5.35A IDC
s
4.7µH to 10mH
s
Low DC Resistance
s
Compact Size
s
Fully Tinned Leads
s
MIL-I-23053/5 Class III Sleeving
s
Supplied in packs of 10
s
Custom & Axial Parts Available
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.
18R254
18R334
18R474
18R684
18R105
18R155
18R225
18R335
18R475
18R685
18R106
TYPICAL CORE CHARACTERISTICS
Inductance
Temperature
Coefficient
Resistance
Temperature
Coefficient
Curie
Temperature
T
C
Saturation
Flux
B
SAT
430ppm
4000ppm
190°C
325mT
ABSOLUTE MAXIMUM RATINGS
Operating free air temperature range
Storage temperature range
0°C to 70°C
–55°C to 125°C
www.dc-dc.com
1 Tolerance ±15%
Specifications typical at T
A
=25°C
1800R SERIES
Radial Lead Inductors
MECHANICAL DIMENSIONS
13.70 max
Recommended Footprint Details
Ø1.20+0.15/–0
7.20±0.30
0.60±0.10
All dimensions in mm
C&D Technologies (NCL) Limited reserve the right to alter or improve the
specification, internal design or manufacturing process at any time, without
notice. Please check with your supplier or visit our web site to ensure that
you have the current and complete specification for your product before use.
© C&D Technologies (NCL) Limited 2000
NMP 1800R.2
No part of this publication may be copied, transmitted or stored in a
retrieval system or reproduced in any way including, but not limited to,
photography, photocopy, magnetic or other recording means, without prior
written permission from C&D Technologies (NCL) Limited.
Instructions for use are available from www.dc-dc.com
C&D Technologies (NCL) Ltd
Tanners Drive, Blakelands North
Milton Keynes MK14 5BU, England
Tel: +44 (0)1908 615232
Fax:+44 (0)1908 617545
email: info@cdtechno-ncl.com
www: http://www.dc-dc.com
C&D Technologies (NCL), Inc.
8917 Glenwood Avenue, Raleigh
NC 27612, USA
Tel: +1 (919) 571-9405
Fax: +1 (919) 571-9262
email: info@us.cdtechno-ncl.com
PCB Design
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