E & E Magnetic Products Limited
Features
Excellent EMI suppression over wide range of
frequency.
Extremely compact design that can fit in any
application
Can withstand IR-Profile with temperature of up to
235°C
Millions of units shipped
Isolation Voltage: 500Vrms Min
Designed for IEEE-1394 application
SURFACE-MOUNT
COMMON MODE CHOKE
Electrical Specification @ 25°C
Part Number
821-00255
Turns Ratio
(Pri:Sec±3%)
1:1 & 1:1
OCL
(mH Min)
0.30
DCR, Each Line
(
Ω
Max)
0.20
Hipot
(Vrms Min)
500
Common-Mode Attenuation
(with 50
Ω
Load)
See Curve
0
10
20
30
1
10
100
500
Frequency(MHz)
Figure1: Typical Common Mode Attenuation with 50
Ω
load
Schematics
8
7
6
5
1
2
3
4
Unit B10, 3/F., 94 Tokwawan Road, Kowloon, Hong Kong • Tel:(852)2954 3333 • Fax:(852)2954 3304
1
Preliminary
CD001(06) Revised in 02/12
E & E Magnetic Products Limited
Designed for IEEE-1394 application
SURFACE-MOUNT
COMMON MODE CHOKE
Mechanical Dimensions
Package: SO008A
.059
1.50
.200±.010
5.08±0.25
.150
3.81
.050
1.27
.295
7.50
.250±.010
6.35±0.25
EE255
(DATE)
RECOMMENDED
PAD LAYOUT
.004-.015
0.10-0.38
.124 MAX
3.15
REFERENCE OR
GAUGE PLANE
.050±.005
1.27±0.13
.150± .005
3.81± 0.13
0-8°
.025±.005
0.64±0.13
Packaging Information
Weight(in gm.):
Tape & Reel:
Tube:
0.3 typ.
2500/reel
N/A
For more information, please contact:
Headquarter
Unit B10, 3/F., Merit Industrial Centre,
94 Tokwawan Road, Kowloon,
Hong Kong
Tel: (852) 2954 3333
Fax: (852) 2954 3304
Email: eempl@eleceltek.com
Website: Http://www.eleceltek.com
Information herein is for reference only and subject to change without notice. It does not constitute any representation, warranty or
commitment of the company in respect of the products in any aspect. All logos, brands and product names mentioned herein are
trademarks or registered trademarks of their respective owners. The company does not assume any liability arising out of the
application or use of any product or circuit described herein. Copyrights 2002, E & E Magnetic Products Limited.
Unit B10, 3/F., 94 Tokwawan Road, Kowloon, Hong Kong • Tel:(852)2954 3333 • Fax:(852)2954 3304
Preliminary
2
CD001(06) Revised in 02/12