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
■ 2.2µH to 880µH
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 500VDC
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=25°C
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 40°C, 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
µH µH mΩ 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 –40°C to 85°C
Storage temperature range –40°C to 125°C
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