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The EMI chip filter in the CNA30 Series is a compound type EMI filter with four built-in 3-terminal capacitors on one chip of 3216 size.
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■ Features
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The structure minimizes the residual inductance, and the self resonant frequency is high, ensuring large insertion loss in the wide band. |
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The common gland electrode built in a chip ensures complete grounding of all lines at the gland on both ends. The filter is designed to control cross talk. |
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An optimum constant can be selected from the capacity range of 22-22,000 pF to best suit the frequency. |
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Nickel and tin plated barrier terminations offer good solderability and resistance to soldering heat. |
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RoHS Compliant. |
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■Applications
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Noise reduction for DC lines in computers, computer peripheral equipment, digital TV, DVD recorder, cellular telephone, automotive electronics, printer, FAX, etc. |
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■Part Number System
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CNA
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30
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R
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223
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M
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T
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M
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Temperature characteristics
C
R
U |
:±30ppm/°C
:±15%
:-750±120ppm/°C |
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Capacitance tolerance
M:±20%
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Termination
M : Ni-Barrier termination
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■Dimensions
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| Type |
L |
W |
t |
L1 |
L2 |
P |
| CNA30 |
3.2±0.2 |
1.6±0.2 |
0.7±0.2 |
0.4±0.2 |
0.8±0.2 |
0.8±0.1 |
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■Equivalent circuit
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■Part Number List • Specifications
| Part number |
Capacitance |
Capacitance
tolerance |
Rated
voltage |
Rated
current |
IR |
DC
resistance |
Temp.
range |
| CNA30C220M-□M |
22pF |
±20% |
50V DC |
0.3A DC |
10,000MΩ
min. |
0.3Ωmax. |
-55~
+125°C |
| CNA30C470M-□M |
47pF |
| CNA30C101M-□M |
100pF |
| CNA30C221M-□M |
220pF |
| CNA30U471M-□M |
470pF |
| CNA30R102M-□M |
1,000pF |
| CNA30R222M-□M |
2,200pF |
| CNA30R223M-□M |
22,000pF |
25V DC |
□ : "T" stands for taping package and "B" stands for bulk package. |
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■Insertion loss (Reference)
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COPYRIGHT 2009 MARUWA Co., Ltd. ALL RIGHT RESERVED.
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