W2F11A4718AT1F [KYOCERA AVX]

Feed Through Capacitor, 1 Function(s), 100V, 0.3A, EIA STD PACKAGE SIZE 0805, 3 PIN;
W2F11A4718AT1F
型号: W2F11A4718AT1F
厂家: KYOCERA AVX    KYOCERA AVX
描述:

Feed Through Capacitor, 1 Function(s), 100V, 0.3A, EIA STD PACKAGE SIZE 0805, 3 PIN

文件: 总12页 (文件大小:728K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
AVX Multilayer Ceramic  
SMD Feedthru Capacitors  
Commercial, Automotive, High Current,  
RoHS & SnPb Termination  
Version 17.5  
Feedthru 0805/1206 Capacitors  
Table of Contents  
W2F/W2H/W3F Series - 0805 & 1206 Feedthru Chips  
Commercial, Automotive, High Current, RoHS & SnPb . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Application Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
Feedthru 0805/1206 Capacitors  
W2F/W3F Series, High Current W2H Series  
Commercial, Automotive, High Current, RoHS & SnPb  
GENERAL DESCRIPTION  
Available in both a standard 0805 and 1206 size, AVXs line  
of feedthru capacitors are ideal choices for EMI suppres-  
sion, broadband I/O filtering, or Vcc power line condition-  
W3F Series  
W2F/W2H  
1206  
Series  
0805  
ing. The unique construction of a feedthru capacitor pro-  
vides low parallel inductance and offers excellent decou-  
pling capability for all high di/dt environments and provides  
significant noise reduction in digital circuits to <5 GHz. A  
large range of capacitor values are available in either NP0  
or X7R ceramic dielectrics. AVX FeedThru filters are AEC  
Q200 qualified. High reliability screening options, and  
SnPb termination are available for spacecraft designs.  
ELECTRICAL PARAMETERS  
AVX Part Number  
Rated  
Rated  
Case Size  
(EIA)  
Capacitance Capacitance  
Type  
Current Dielectric  
DC Voltage  
SnPb Termination  
Finish  
Automotive w/ SnPb  
Termination Finish  
L2H11A22084Bxx  
L2H11A47084Bxx  
L2H11A10184Bxx  
L2H11A22184Bxx  
L2H11A47184Bxx  
L2H15C10284Bxx  
L2H15C10384Bxx  
L2H15C22384Bxx  
L2H15C47384Bxx  
L2H13C10484Bxx  
(pF)  
Tolerance  
Standard  
Automotive  
(Amps)  
0805  
0805  
0805  
0805  
0805  
0805  
0805  
0805  
0805  
0805  
W2H11A2208ATxx  
W2H11A4708ATxx  
W2H11A1018ATxx  
W2H11A2218ATxx  
W2H11A4718ATxx  
W2H15C1028ATxx  
W2H15C1038ATxx  
W2H15C2238ATxx  
W2H15C4738ATxx  
W2H13C1048ATxx  
L2H11A2208ABxx  
L2H11A4708ABxx  
L2H11A1018ABxx  
L2H11A2218ABxx  
L2H11A4718ABxx  
L2H15C1028ABxx  
L2H15C1038ABxx  
L2H15C2238ABxx  
L2H15C4738ABxx  
L2H13C1048ABxx  
W2H11A22084Txx  
W2H11A47084Txx  
W2H11A10184Txx  
W2H11A22184Txx  
W2H11A47184Txx  
W2H15C10284Txx  
W2H15C10384Txx  
W2H15C22384Txx  
W2H15C47384Txx  
W2H13C10484Txx  
22  
47  
100  
220  
470  
1000  
10000  
22000  
47000  
100000  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
100V  
100V  
100V  
100V  
100V  
50V  
50V  
50V  
50V  
25V  
0.5  
0.5  
0.5  
0.5  
0.5  
1.0  
1.0  
1.0  
2.0  
2.0  
NP0  
NP0  
NP0  
NP0  
NP0  
X7R  
X7R  
X7R  
X7R  
X7R  
0805  
0805  
0805  
0805  
0805  
0805  
0805  
0805  
0805  
0805  
0805  
1206  
1206  
1206  
1206  
1206  
1206  
1206  
1206  
1206  
1206  
1206  
W2F11A2208ATxx  
W2F11A4708ATxx  
W2F11A1018ATxx  
W2F11A2218ATxx  
W2F11A4718ATxx  
W2F15C1028ATxx  
W2F15C2228ATxx  
W2F15C4728ATxx  
W2F15C1038ATxx  
W2F15C2238ATxx  
W2F15C4738ATxx  
W3F11A2208ATxx  
W3F11A4708ATxx  
W3F11A1018ATxx  
W3F11A2218ATxx  
W3F11A4718ATxx  
W3F15C1028ATxx  
W3F15C2228ATxx  
W3F15C4728ATxx  
W3F15C1038ATxx  
W3F15C2238ATxx  
W3F15C4738ATxx  
L2F11A2208ABxx  
L2F11A4708ABxx  
L2F11A1018ABxx  
L2F11A2218ABxx  
L2F11A4718ABxx  
L2F15C1028ABxx  
L2F15C2228ABxx  
L2F15C4728ABxx  
L2F15C1038ABxx  
L2F15C2238ABxx  
L2F15C4738ABxx  
L3F11A2208ABxx  
L3F11A4708ABxx  
L3F11A1018ABxx  
L3F11A2218ABxx  
L3F11A4718ABxx  
L3F15C1028ABxx  
L3F15C2228ABxx  
L3F15C4728ABxx  
L3F15C1038ABxx  
L3F15C2238ABxx  
L3F15C4738ABxx  
W2F11A22084Txx  
W2F11A47084Txx  
W2F11A10184Txx  
W2F11A22184Txx  
W2F11A47184Txx  
W2F15C10284Txx  
W2F15C22284Txx  
W2F15C47284Txx  
W2F15C10384Txx  
W2F15C22384Txx  
W2F15C47384Txx  
W3F11A22084Txx  
W3F11A47084Txx  
W3F11A10184Txx  
W3F11A22184Txx  
W3F11A47184Txx  
W3F15C10284Txx  
W3F15C22284Txx  
W3F15C47284Txx  
W3F15C10384Txx  
W3F15C22384Txx  
W3F15C47384Txx  
L2F11A22084Bxx  
L2F11A47084Bxx  
L2F11A10184Bxx  
L2F11A22184Bxx  
L2F11A47184Bxx  
L2F15C10284Bxx  
L2F15C22284Bxx  
L2F15C47284Bxx  
L2F15C10384Bxx  
L2F15C22384Bxx  
L2F15C47384Bxx  
L3F11A22084Bxx  
L3F11A47084Bxx  
L3F11A10184Bxx  
L3F11A22184Bxx  
L3F11A47184Bxx  
L3F15C10284Bxx  
L3F15C22284Bxx  
L3F15C47284Bxx  
L3F15C10384Bxx  
L3F15C22384Bxx  
L3F15C47384Bxx  
22  
47  
100  
220  
470  
1000  
2200  
4700  
10000  
22000  
47000  
22  
47  
100  
220  
470  
1000  
2200  
4700  
10000  
22000  
47000  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
+50%, -20%  
100V  
100V  
100V  
100V  
100V  
50V  
50V  
50V  
50V  
50V  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
0.3  
NP0  
NP0  
NP0  
NP0  
NP0  
X7R  
X7R  
X7R  
X7R  
X7R  
X7R  
NP0  
NP0  
NP0  
NP0  
NP0  
X7R  
X7R  
X7R  
X7R  
X7R  
X7R  
50V  
100V  
100V  
100V  
100V  
100V  
50V  
50V  
50V  
50V  
50V  
50V  
xx = Packaging and quantity code - see "How To Order" section.  
Parameter  
High Current  
1000 MΩ  
Standard  
1000 MΩ  
<0.60 Ω  
SIGNAL LINE - INPUT  
OUTPUT  
Insulation Resistance  
(Minimum)  
DC Resistance  
<0.15 Ω  
GROUND  
-55C to +125C  
Operating Temperature  
HOW TO ORDER  
W
3
F
1
5
C
223  
8
A
T
3
A
Style  
Size  
Feedthru  
F = Feedhtru  
H= High Current  
Feedthru  
Number  
of  
Voltage Dielectric Capacitance Capacitance  
Failure Rate  
Termination  
Packaging Code  
(Reel Size)  
Quantity  
Code  
W = Plated Ni & Sn 2 = 0805  
1 = 100V  
A = NP0  
C = X7R  
Code  
Tolerance  
A = Not Applicable T = Plated Ni & Sn  
L = Plated SnPb  
3 = 1206  
Elements 5 = 50V  
8 = +50/-20% 4 = AUTOMOTIVE B* = Plated SnPb  
1 & 2 = 7" Reel  
Embossed Tape  
3 & 4 = 13" Reel  
Embossed Tape  
(Pcs./Reel)  
F = 1,000  
A = 2,000,  
4,000 or  
*Not RoHS Compliant  
10,000  
050817  
1
Feedthru 0805/1206 Capacitors  
W2F/W3F Series, High Current W2H Series  
Commercial, Automotive, High Current, RoHS & SnPb  
Common Ground  
Feedthru Pad  
Feedthru Pad  
L
C
L
X
S
BL  
T
W
EW  
BW  
Common Ground  
DIMENSIONS  
L
W
T
BW  
0.46 0.10  
BL  
0.18 + 0.25 -0.08  
EW  
0.25 0.13  
X
S
0805 MM  
(in.)  
2.01 0.20  
1.25 0.20  
1.14 Max.  
1.02 0.10  
0.23 0.15  
(0.079 0.008ꢀ  
(0.049 0.008ꢀ  
(0.045 Max.ꢀ  
(0.018 0.004ꢀ (0.007 + 0.010 -0.003ꢀ (0.010 0.005ꢀ (0.040 0.004ꢀ (0.009 0.006ꢀ  
1206 MM  
(in.)  
3.20 0.20  
(0.126 0.008ꢀ  
1.60 0.20  
(0.063 0.008ꢀ  
1.27 Max.  
(0.050 Max.ꢀ  
0.89 0.10 0.18 + 0.25 -0.08 0.38 0.18 1.60 0.10 0.46 0.15  
(0.035 0.004ꢀ (0.007 + 0.010 -0.003ꢀ (0.015 0.007ꢀ (0.063 0.004ꢀ (0.018 0.006ꢀ  
T
P
P
S
W
C
L
RECOMMENDED SOLDER PAD LAYOUT (TYPICAL DIMENSIONS)  
T
P
S
W
L
C
0805 MM  
(in.)  
3.45  
(0.136ꢀ  
0.51  
(0.020ꢀ  
0.76  
(0.030ꢀ  
1.27  
(0.050ꢀ  
1.02  
(0.040ꢀ  
0.46  
(0.018ꢀ  
1206 MM  
(in.)  
4.54  
(0.179ꢀ  
0.94  
(0.037ꢀ  
1.02  
(0.040ꢀ  
1.65  
(0.065ꢀ  
1.09  
(0.043ꢀ  
0.71  
(0.028ꢀ  
TYPICAL FEEDTHRU CHIP CAP CONNECTION  
Feedthru Chip Component Model  
Physical Layout - A  
Ground  
Vcc or  
Signal Out  
Vcc or  
Signal In  
Signal Out  
Signal In  
Ground  
Ground  
The terminals are connected internally side to side.  
Left side and right side are connected and front and  
back are connected internally.  
Physical Layout - B  
Ground  
For Decoupling, the chip is usually surrounded by  
four vias, two for Vcc and two for GND.  
For Signal Filtering, the in and out lines need to be  
separated on the circuit board.  
Vcc  
Vcc  
Ground  
2
Feedthru 0805/1206 Capacitors  
W2F/W3F Series, High Current W2H Series  
Commercial, Automotive, High Current, RoHS & SnPb  
PERFORMANCE CHARACTERISTICS  
S21 0805 – 100V  
IMPEDANCE 0805 – 100V  
10000  
1000  
100  
10  
0
-10  
-20  
-30  
-40  
-50  
-60  
-70  
W2F11A2208AT  
W2F11A2208  
W2F11A4708  
W2F11A1018  
W2F11A2218  
W2F11A4718  
1
W2F11A4708AT  
W2F11A1018AT  
W2F11A2218AT  
W2F11A4718AT  
0.1  
0.01  
1.E+05  
1.E+06  
1.E+07  
1.E+08  
1.E+09  
1.E+10  
1.E+05  
1.E+06  
1.E+07  
1.E+08  
1.E+09  
1.E+10  
Freq (0.3 MHz – 9 GHz)  
Freq (0.3 MHz – 9 GHz)  
S21 1206 – 100V  
IMPEDANCE 1206 – 100V  
10000  
1000  
100  
10  
0
-10  
-20  
-30  
-40  
-50  
-60  
-70  
1
W3F11A2208  
W3F11A4708  
W3F11A1018  
W3F11A2218  
W3F11A2208  
W3F11A4708  
W3F11A1018  
W3F11A2218  
0.1  
0.01  
1.E+05  
1.E+06  
1.E+07  
1.E+08  
1.E+09  
1.E+10  
1.E+05  
1.E+06  
1.E+07  
1.E+08  
1.E+09  
1.E+10  
Freq (0.3 MHz – 9 GHz)  
Freq (0.3 MHz – 9 GHz)  
IMPEDANCE 1206 – 50V  
S21 1206 – 50V  
1000  
100  
10  
0
-10  
-20  
-30  
-40  
-50  
-60  
-70  
1
W3F15C2228  
W3F15C2228  
W3F15C4728  
W3F15C1038  
W3F15C2238  
W3F15C4738  
W3F15C4728  
W3F15C1038  
W3F15C2238  
W3F15C4738  
0.1  
0.01  
1.E+05  
1.E+06  
1.E+07  
1.E+08  
1.E+09  
1.E+10  
1.E+05  
1.E+06  
1.E+07  
1.E+08  
1.E+09  
1.E+10  
Freq (0.3 MHz – 9 GHz)  
Freq (0.3 MHz – 9 GHz)  
3
Feedthru 0805/1206 Capacitors  
W2F/W3F Series, High Current W2H Series  
Commercial, Automotive, High Current, RoHS & SnPb  
PERFORMANCE CHARACTERISTICS  
0805 NP0  
Current vs. Temperature  
40.00  
35.00  
30.00  
220pf  
100pf  
47pf  
470pf  
25.00  
20.00  
0.3  
0.5  
0.7  
0.8  
1.00  
1.20  
Current (A)  
0805 X7R  
Current vs. Temperature  
40.00  
35.00  
30.00  
1000pf  
2200pf  
4700pf  
10nf  
47nf  
22nf  
25.00  
20.00  
0.3  
0.5  
0.7  
0.8  
1.00  
1.20  
Current (A)  
1206 NP0  
Current vs. Temperature  
40.00  
22pf  
220pf  
100pf  
47pf 470pf  
20.00  
0.00  
0.3  
0.5  
0.75  
0.87  
1.00  
1.20  
Current (A)  
1206 X7R  
Current vs. Temperature  
40.00  
20.00  
0.00  
1000pf  
22,000pf  
2200pf  
0.3  
0.5  
0.75  
0.87  
1.00  
1.20  
Current (A)  
4
Feedthru 0805/1206 Capacitors  
W2F/W3F Series  
Applications  
Standard EIA Sizes  
Broad Frequency Response  
Low ESR  
APPLICATIONS  
EMI Suppression  
FEATURES  
MARKET SEGMENTS  
Computers  
Broadband I/O Filtering  
Vcc Line Conditioning  
Automotive  
Power Supplies  
8 mm Tape and Reel  
Multimedia Add-On Cards  
Bar Code Scanners and Remote Terminals  
PCMCIA Cards  
Medical Instrumentation  
Test Equipment  
Transceivers/Cell Phones  
Typical Circuits Requiring  
EMI Filtering  
THE FOLLOWING APPLICATIONS AND SCHEMATIC DIAGRAMS SHOW WHERE  
FEEDTHRU CAPACITORS MIGHT BE USED FOR EMI SUPPRESSION  
• Digital to RF Interface Filtering  
• Voltage Conditioning in RF Amplifiers  
• Power Decoupling GaAs FET Transistor Preamplifier  
• Vcc Line Filtering on Frequency Control Circuit  
• Clock, Data, Control Line High Frequency Decoupling (Frequency Synthesizer)  
(SEE APPLICATION NOTES)  
DIGITAL TO RF INTERFACE FILTERING  
Audio  
Digital  
Block  
RF  
Block  
= Feedthru  
5
REV 01  
Feedthru 0805/1206 Capacitors  
W2F/W3F Series  
VOLTAGE CONDITIONING IN RF AMPLIFIERS  
+28V  
Q1  
R1  
D1  
R4  
R6  
Z2  
C9  
+28V  
RFC7  
RFC1  
RFC2  
Q2  
C2  
C25  
C18  
R2  
RFC5  
Q3  
Z1  
Z5  
C11 C12  
Z6  
C13  
C1  
RF in  
T2  
C3  
C4  
T1  
C14  
C10  
C5  
C21  
C22  
C23  
RFC4  
L1  
Filter  
RFC3  
Z3  
Q4  
Z4  
Z7  
Z8  
C16  
L2  
R3  
C6  
C7  
C8  
C15  
RFC6  
RFC8  
L3  
+28V  
R5  
= Feedthru  
C26  
C20  
C24  
RF Out  
POWER DECOUPLING GaAs FET TRANSISTOR PREAMPLIFIER  
C2  
J2  
OUTPUT  
C3  
1.5pF  
L5  
TYPICAL  
S.M. = SILVER MICA  
200  
51  
1/8W  
RFC1  
CHIP  
FB  
5.6  
J1  
R3  
S.M.  
INPUT  
200  
CHIP  
D
L3  
C5  
G
15  
S.M.  
S
L6  
C8  
C1  
Q1  
L4  
62  
1/4W  
R2  
L1  
L2  
U1  
200  
CHIP  
78L05  
IN  
1N914  
D2  
C4  
+12/14V  
14mA  
R1  
500  
POT  
OUT  
GND  
D1  
16V  
0.4W  
1000  
F. T.  
C6  
0.1  
C7  
0.1  
= Feedthru  
Vcc LINE FILTERING ON FREQUENCY CONTROL CIRCUIT  
6-6.35 MHz VFO  
U10  
VCC  
R141  
100  
78L05  
C91  
Reg  
C87  
0.022  
IN  
OUT  
GND  
0.022  
2.2μF  
16V  
C90  
2N5486  
Q25  
R138  
100k  
C85  
2
+
C81  
C82  
82  
C80  
82  
C89  
0.022  
FB1  
D25  
1N914  
To Bilateral  
Mixer  
R137  
47k  
24pF  
L3  
R136  
1M  
T14  
40673  
C84  
50  
C83  
24  
Q26  
C86  
10  
R139  
100k  
C88  
0.022  
R140  
100  
= Feedthru  
6
REV 01  
High Current Feedthru Capacitors  
W2H Series  
APPLICATIONS  
Dual Power Switch Filtering  
PA Filtering  
W2H15C1048AT1A W2H15C1038AT1A  
3.3V  
5V  
3VIN  
PCMCIA  
Card  
VC120630D650  
TransGuard  
5VIN  
I/O Bus  
Controller  
RF OUT  
7
REV 01  
Feedthru 0805/1206 Capacitors  
W2F/W2H/W3F Series  
EMI REDUCTION THROUGH THE USE OF SMT FEEDTHRU CAPACITORS  
ty and can be processed in the same end user production  
ABSTRACT  
methods as standard capacitors. What feedthru capacitors  
offer is an optimized frequency response across a wide RF  
spectrum due to a modified internal electrode design.  
Todays high speed, miniaturized semiconductors have  
made EMI issues a key design consideration. This paper  
briefly defines EMI and illustrates the capability of SMT  
feedthru capacitors.  
An application comparison between an SMT feedthru and a  
discrete capacitor is shown in Figure 1.  
WHAT IS EMI?  
The term EMI stands for Electromagnetic Interference and  
refers to signals/energy interfering with a circuit or systems  
functions.  
Signal Trace  
INPUT  
Signal Trace  
OUTPUT  
Signal Trace  
INPUT  
Signal Trace  
OUTPUT  
FEEDTHRU FILTER  
SMT CAPACITOR  
In an electronic system, two classes of energy are generated  
- wanted and unwanted. Both are potential sources of EMI(1).  
Figure 1. Comparison of Feedthru Capacitors  
to Discrete Capacitors  
Wanted signals such as clocks and bus lines could cause  
EMI if they were not decoupled, terminated or filtered prop-  
erly. Unwanted signals (cell phones, police radios, power  
supply noise, etc.) could be conducted or radiated into the  
circuit due to poor circuit layout, improper decoupling or a  
lack of high frequency filtering.  
The key difference between the two filtering methods is that  
the feedthru has a much lower inductance between the sig-  
nal line and ground than the capacitor. The difference in  
inductances can be in the range of roughly one order mag-  
nitude with a feedthru capacitor. This inductance can be  
shown in an electrical sense through the model for a feedthru  
and a capacitor (Figure 2).  
In either type of EMI signal interference, the system could be  
rendered useless or put into a state which would cause early  
failure of its semiconductors. Even worse, the unwanted  
energy could cause an incorrect answer to be generated  
from a computer by randomly powering a gate up or down.  
From all of this we can gather that EMI is a complex prob-  
lem, usually with no one solution. EMI interference can be a  
random single shot noise (like a SCR firing) or repetitive in  
nature (stepper motor or relay noise). The interference can  
enter into our designs either by being induced by E/B fields,  
or it can be conducted through control lines or a communi-  
cation bus. EMI can even be self generated by internal com-  
ponents that generate steep risetime waveforms of voltage  
or current.  
INPUT  
INPUT  
OUTPUT  
OUTPUT  
FEEDTHRU FILTER  
SMT CAPACITOR  
HOW CAN EMI BE CONTROLLED?  
Figure 2. Comparison of Feedthru Capacitors  
to Discrete Capacitors  
EMI is most efficiently controlled by realizing it to be a design  
parameter in the earliest stages of the design. This way, the  
board layout can be optimized with large power and ground  
planes which will be low impedance in nature. The use of  
SMT feedthru filters will yield optimal results.  
The feedthru capacitor has a minimized parallel inductance  
and an optimal series inductance (which broadens the  
frequency response curve). Typical attenuation graphs are  
shown in Figure 3A.  
SMT FEEDTHRU CAPACITORS  
AVX introduced feedthru capacitors to supply a broadband  
EMI filter capacitor for source suppression and receiver noise  
reduction.  
These curves demonstrate feedthru capacitors advantage of  
a broad frequency response with high attenuation. They also  
serve as a comparison to the inductance of even lower  
inductance devices (primarily used in extreme decoupling  
cases and switch mode power supplies) - see Figure 3B.  
SMT feedthru capacitors use the same material systems as  
standard ceramic capacitors. They exhibit the same reliabili-  
(1)Practical Design for Electromagnetic Compatibility edited by Rocco F. Ficchi  
Hayden Book Company 1978  
8
REV 01  
Feedthru 0805/1206 Capacitors  
W2F/W2H/W3F Series  
SMT FEEDTHRU CAPACITOR  
TERMINOLOGY  
W3F15C2228AT High Frequency Analysis  
0
-10  
-20  
-30  
-40  
-50  
-60  
AVXs feedthru capacitors have additional technical termi-  
nologies relative to standard ceramic capacitors. The reason  
for this is due to the series manner in which the feedthru  
element is connected to the circuit.  
-3dB ~ 2.30 MHz  
The most important term is DC Resistance. The DC resis-  
tance of the feedthru is specified since it causes a minor sig-  
nal attenuation which designers can calculate by knowing  
the maximum resistance of the part.  
The maximum current capability of the part is also of interest  
to designers since the feedthru may be placed in series with  
the voltage line.  
1.E+05  
1.E+06  
1.E+07  
1.E+08  
1.E+09  
Frequency (Hz)  
APPLICATION AND SELECTION OF  
SMT FEEDTHRU CAPACITOR FILTERS  
Figure 3A. Typical Attenuation Graph  
EMI suppression and receiver noise reduction can be  
achieved most effectively with efficient filtering methods.  
Attenuations of over 100 dB are achievable depending on  
the complexity and size of the filters involved.  
30  
10  
However, before filtering is discussed, another EMI reduction  
method is noise limiting, using a series element (inductors or  
resistors). This method is easy to implement and inexpen-  
sive. The problem it poses is that it can only reduce noise by  
-3 to -10 dB. Because of that, series element EMI reduction  
is primarily used where there is a poor ground.  
IDC  
3
Feedthru  
0612  
1
0.3  
0.1  
0.03  
1206  
SMT feedthru filter capacitors can actually replace discrete  
L/C filter networks (depending on the frequency response  
needed). The SMT filter capacitors should first be chosen for  
its specific frequency response. Then the voltage rating,  
DCR, and current capability must be evaluated for circuit  
suitability. If there is not a match on voltage, current and DC  
resistance ratings, the designer must select the closest avail-  
able frequency response available on parts that will meet the  
designs power spec.  
0.01  
0.1  
1
10  
100  
1000  
Frequency, MHz  
Figure 3B. Comparison of SMT Capacitor  
Frequency Response to Feedthru Filters  
The top 5 applications for SMT feedthru filter capacitors are:  
1. Digital to RF interface filtering.  
2. Control line high frequency decoupling.  
3. Data and clock high frequency decoupling.  
4. Power line high frequency decoupling.  
5. High gain and RF amplifier filtering.  
9
REV 01  
AMERICAS  
EUROPE  
ASIA-PACIFIC  
ASIA-KED  
(KYOCERA Electronic Devices)  
AVX Greenville, SC  
Tel: 864-967-2150  
AVX/Kyocera (S) Pte Ltd.,  
Singapore  
KED Hong Kong Ltd.  
Tel: +852-2305-1080/1223  
AVX Limited, England  
Tel: +44-1276-697000  
Tel: +65-6286-7555  
AVX S.A.S., France  
Tel: +33-1-69-18-46-00  
KED Hong Kong Ltd.  
Shenzen  
Tel: +86-755-3398-9600  
AVX/Kyocera, Asia, Ltd.,  
Hong Kong  
AVX GmbH, Germany  
Tel: +49-0811-95949-0  
Tel: +852-2363-3303  
KED Company Ltd.  
Shanghai  
Tel: +86-21-3255-1833  
AVX/Kyocera Yuhan Hoesa,  
South Korea  
AVX SRL, Italy  
Tel: +39-02-614-571  
Tel: +82-2785-6504  
KED Hong Kong Ltd.  
Beijing  
Tel: +86-10-5869-4655  
AVX/Kyocera HK Ltd.,  
Taiwan  
Tel: +886-2-2656-0258  
AVX Czech Republic  
Tel: +420-57-57-57-521  
AVX/ELCO UK  
Tel: +44-1638-675000  
KED Taiwan Ltd.  
Tel: +886-2-2950-0268  
AVX/Kyocera (M) Sdn Bhd,  
Malaysia  
Tel: +60-4228-1190  
ELCO Europe GmbH  
Tel: +49-2741-299-0  
KED Korea Yuhan Hoesa,  
South Korea  
Tel: +82-2-783-3604/6126  
AVX/Kyocera International  
Trading Co. Ltd.,  
Shanghai  
AVX S.A., Spain  
Tel: +34-91-63-97-197  
KED (S) Pte Ltd.  
Singapore  
Tel: +65-6509-0328  
Tel: +86-21-3255 1933  
AVX Benelux  
Tel: +31-187-489-337  
AVX/Kyocera Asia Ltd.,  
Shenzen  
Tel: +86-755-3336-0615  
Kyocera Corporation  
Japan  
Tel: +81-75-604-3449  
AVX/Kyocera International  
Trading Co. Ltd.,  
Beijing  
Tel: +86-10-6588-3528  
AVX/Kyocera India  
Liaison Office  
Tel: +91-80-6450-0715  
Contact:  
A KYOCERA GROUP COMPANY  
http://www.avx.com  
S-FTCA0M815-C  

相关型号:

W2F11A4718AT3A

Feed Through Capacitor, 1 Function(s), 100V, 0.3A, EIA STD PACKAGE SIZE 0805, 3 PIN

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
KYOCERA AVX

W2F11A4718ATxx

Feedthru 0805/1206 Capacitors

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
KYOCERA AVX

W2F15C10284T1A

Feedthru MLCC

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
KYOCERA AVX

W2F15C10284T3A

Feed Through Capacitor

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
KYOCERA AVX

W2F15C10284T4A

Feed Through Capacitor

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
KYOCERA AVX

W2F15C1028AT

Feedthru 0805/1206 Capacitors

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
KYOCERA AVX

W2F15C1028AT1A

Feed Through Capacitor, 1 Function(s), 50V, 0.3A, EIA STD PACKAGE SIZE 0805, 3 PIN

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
KYOCERA AVX

W2F15C1028AT1F

Feed Through Capacitor, 1 Function(s), 50V, 0.3A, EIA STD PACKAGE SIZE 0805, 3 PIN

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
KYOCERA AVX

W2F15C1028AT3A

Feedthru MLCC

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
KYOCERA AVX

W2F15C1028ATxx

Feedthru 0805/1206 Capacitors

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
KYOCERA AVX

W2F15C10384T1A

Feedthru MLCC

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
KYOCERA AVX

W2F15C10384T3A

Feedthru MLCC

Warning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
KYOCERA AVX