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 2003
NMP 4900.1
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.cdpoweronline.com
4900 SERIES
Dual Winding Surface Mount Inductors
FEATURES
2.2H to 880H
1
Up to 9.5A IDC
Bobbin Format
Dual Winding
Surface Mounting
Integral EMI Shield
Compact Size
Tape and Reel Packaging
No Voltage Breakdown at 500V
DC
DESCRIPTION
The 4900 series is a range of dual wind
inductors offering flexible options. Windings
have a 1:1 ratio and can be connected in
series or parallel to create a wide range of
inductance combinations. The secondary
winding could be used as a feedback
winding in switched mode power supplies.
1 When connecting windings in series, inductance
will be 4 times the nominal figure shown.
2 Specifications typical at TA=25C
3 If current is flowing in both windings the maximum
DC current occurs when either the inductance falls
to 75% of its nominal value or when its temperature
rise reaches 40C, whichever is sooner.
PACKAGE DETAILS
Order Code
TYP Weight (g)
Packaging Style
QTY
49XXX
4
Tape & Reel
500
MECHANICAL DIMENSIONS
SELECTION GUIDE
2
Nominal
Inductance
DC
DC Current
Inductance
1
Range
Resistance
Continuous
3
H
H
m
A
MAX
10kHz,100mV 10kHz,
100mV
MAX
1&2 S/C to
Order Code
1&3, 2&4
1&3, 2&4
1&3, 2&4
3&4 S/C
492R2
2.2
1.77 - 2.65
12.6
9.50
493R3
3.3
2.47 - 3.70
14.9
7.80
494R7
4.7
3.29 - 4.93
17.1
6.50
496R8
6.8
5.27 - 7.91
27.0
5.40
49100
10
7.70 - 11.6
41.0
4.50
49150
15
10.6 - 16.0
53.0
3.70
49220
22
15.9 - 23.8
81.0
3.00
49330
33
24.5 - 36.8
128
2.50
49470
47
35.1 - 52.6
191
2.10
49680
68
50.8 - 76.2
233
1.71
49101
100
73.6 - 110
348
1.41
49151
150
111 - 166
529
1.15
49221
220
167 - 251
805
0.95
0.47 (12.0)
0.47 (12.0)
2
1
3
4
0.315 (8.0)
MAX
0.59 (15.0)
0.20 (5.0)
All dimensions in inches (mm)
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
C&D Technologies Inc.
3400 E Britannia Drive, Tucson,
Arizona 85706, USA
Tel: +1 (800) 547-2537
Fax: +1 (520) 741-4598
email: sales@cdtechno.com
ABSOLUTE MAXIMUM RATINGS
Operating free air temperature range
40C to 85C
Storage temperature range
40C to 125C
PIN CONNECTIONS
(TOP VIEW)
1
2
3 & 1 = Primary Winding
4 & 2 = Secondary Winding
4
3
www.cdpoweronline.com
0.04 (1.0)
0.20
(5.0)
Recommended Footprint Details
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