Chip Bead Array
Panasonic Electronic Devices Co., Ltd.
“ EXC28B series ”
For Parallel Data Line
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Appearance
Dimension
Effect
EXC28BA
For high speed data line
0.25mm
Pitch 0.5mm
Suppress the ringing
0.20mm
EXC28BB
High attenuation in high frequency (80MHz~)
0.5mm
Reduce the noise without dulling the wave form
1.0mm
2.0mm
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Impedance (Typical)
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Specification
EXC28BA121U
EXC28BA221U
400
350
300
250
200
150
100
50
400
Part Number
Impedance at 100MHz
Rated I.
(mA)
100
100
100
R DC
350
300
250
200
( )
Ω
( )
Ω
EXC28BA121
EXC28BA221
EXC28BB121
EXC28BB221
120 ±25%
220 ±25%
120 ±25%
220 ±25%
0.5
0.7
0.5
0.7
Z
R
150
100
Z
100
50
0
R
X
X
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Features
0
1
10
100
1000
10000
1
10
100
1000
10000
Compatible with SSOP package (0.5mm pitch)
Frequency (MHz)
Frequency (MHz)
Space saving 60% area compared with 1005 (inch) array
Light weight (1/4 weight compared with 1005 (inch) array)
EXC28BA: Suppress the ringing (High loss from lower frequency)
EXC28BB: Reduce the noise without dulling the wave form
(High loss in high frequency (over 80MHz))
EXC28BB121U
EXC28BB221U
400
350
300
250
200
150
100
50
400
350
300
250
200
150
100
50
Z
R
R
Z
X
Excellent Cross Talk Characteristics (100MHz: <-30dB)
X
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0
0
Applications
1
10
100
1000
10000
1
10
100
1000
10000
Frequency (MHz)
Mobile-phone, PC, DSC, PDA, Navigation System, Game etc.
Frequency (MHz)
