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X2Y® FILTER & DECOUPLING CAPACITORS
X2Y® filter capacitors employ a unique, patented low inductance design featuring two balanced capacitors
that are immune to temperature, voltage and aging performance differences.
These components offer superior decoupling and EMI filtering performance, virtually eliminate parasitics, and
can replace multiple capacitors and inductors saving board space and reducing assembly costs.
ADVANTAGES
APPLICATIONS
• One device for EMI suppression or decoupling
• Replace up to 7 components with one X2Y
• Differential and common mode attenuation
• Matched capacitance line to ground, both lines
• Low inductance due to cancellation effect
• Amplifier Filter & Decoupling
• High Speed Data Filtering
• EMC I/O Filtering
• FPGA / ASIC / µ-P Decoupling
• DDR Memory Decoupling
EMI Filtering
(1 Y-Cap.)
Power Bypass
(2 Y-Caps.)
SIZE
0402 (X07)
0603 (X14)
0805 (X15)
1206 (X18
1210 (X41)
1410 (X44)
1812 (X43)
NP0 50 50 50 50 50 50 50
X7R 50 50 50 50 50 50 16
NP0 100 100 100 100 100 100 50 50
X7R
100 100 100 100 100 100 100 100 50 25 25
16 10
NP0 100 100 100 100 100 100 100 50
X7R
100 100 100 100 100 100 100 100 50 50
50 25
NP0 VOLTAGE
RATINGS
X7R 6.3 = 6.3 VDC
10 = 10 VDC
X7R 16 = 16 VDC
25 = 25 VDC
X7R 50 = 50 VDC
100 = 100 VDC
X7R 500 = 500 VDC
100
100 100 100
100 100
500 100
500
500
Contact factory for part combinations not shown.
Filtering capacitance is specified as Line-to-Ground ( Terminal A or B to G)
Power Bypass capacitance is specified Power-to-Ground (A + B to G)
Rated voltage is from line to ground in Circuit 1, power to ground in Circuit 2 .
10
16 16
10
100 100
25 16
100
100
HOW TO ORDER X2Y® CAPACITORS
100 X14
W
102
M
P/N written: 101X14W102MV4T
V 4T
+AQ
VOLTAGE
6R3 = 6.3 V
100 = 10 V
160 = 16 V
250 = 25 V
500 = 50 V
101 = 100 V
501 = 500 V
SIZE
X07 = 0402
X14 = 0603
X15 = 0805
X18 = 1206
X41 = 1210
X44 = 1410
X43 = 1812
DIELECTRIC CAPACITANCE TOLERANCE TERMINATION MARKING PACKING QUALIFICATION
N = NP0
W = X7R
1st two digits are
significant; third digit
denotes number of
zeros, R = decimal.
102 = 1000 pF
104 = 0.10 µF
5R6 = 5.6pF
M = ± 20% V = NI Barrier with 4 = Unmarked
* D = ± 0.50 pF
*Values < 10 pF
100% Tin Plating
(Matte)
(Not available)
only F = Polyterm
flexible termination
T = SnPb
E = Embossed 7”
T = Punched 7”
No code = bulk
Tape specs.
per EIA RS481
AEC-Q200
Qualification *
(optional)
X2Y® technology patents and registered trademark under license from X2Y ATTENUATORS, LLC
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X2Y® FILTER & DECOUPLING CAPACITORS
EMI Filtering Scc21
Power Bypass S21
Labeled capacitance values below follow the P/N order code (single Y cap value)
Effective capacitance measured in Circuit 2 is 2X of the labled single Y cap value.
10.0Ω
10.0Ω
1.00Ω
1.00Ω
0.10Ω
0.01Ω
0.10Ω
0.01Ω
ELECTRICAL
CHARACTERISTICS
More data at https://s21plotter.johansondielectrics.com/
NP0
X7R
TEMPERATURE COEFFICIENT:
0±30ppm/°C (-55 to +125°C)
±15% (-55 to +125°C)
DIELECTRIC STRENGTH:
Vrated ≤100VDC: DWV = 2.5 X WVDC, 25°C, 50mA max.
Vrated = 500VDC: DWV = 1.5 X WVDC, 25°C, 50mA max.
DISSIPATION FACTOR:
INSULATION RESISTANCE
(MIN. @ 25°C, WVDC)
0.1% max.
WVDC ≥ 50 VDC: 2.5% max.
WVDC = 25 VDC: 3.5% max.
WVDC = 10-16 VDC: 5.0% max.
WVDC = 6.3 VDC: 10% max.
C≤ 0.047µF: 1000 ΩF or 100 GΩ, whichever is less
C> 0.047µF: 500 ΩF or 10 GΩ, whichever is less
TEST CONDITIONS:
OTHER:
C > 100 pF; 1kHz ±50Hz; 1.0±0.2 VRMS
C ≤ 100 pF; 1Mhz ±50kHz; 1.0±0.2 VRMS
1.0kHz±50Hz @ 1.0±0.2 Vrms
CB
See page 79 for additional dielectric specifications.
Cross-sectional View
Dimensional View
W
G
CB
EB
CASE SIZE
A
B
G
W
EB
T
L
0402 (X07)
0603 (X14)
0805 (X15)
1206 (X18)
1T210 (X41)
1410 (X44)
1812 (X43)
IN MM IN MM IN MM IN MLM IN MM IN MM IN MM
L
0.045 ± 1.143 ± 0.064 ± 1.626 ± 0.080 ± 2.032 ± 0.124 ± 3.150 ± 0.125 ± 3.175 ± 0.140 ± 3.556 ± 0.174 ± 4.420 ±
0.003 0.076 0.005 0.127 0.008 0.203 0.010 0.254 0.010 0.254 0.010 0.254 0.010 0.254
W
0.025 ± 0.635 ± 0.035 ± 0.889 ± 0.050 ± 1.270 ± 0.063 ± 1.600 ± 0.098 ± 2.489 ± 0.098 ± 2.490 ± 0.125 ± 3.175 ±
0.003 0.076 0.005 0.127 0.008 0.203 0.010 0.254 0.010 0.254 0.010 0.254 0.010 0.254
T
0.020
max
0.508
max
0.026
max
0.660
max
0.040
max
1.016
max
0.050
max
1.270
max
0.070
max
1.778
max
0.070
max
1.778
max
0.090
max
2.286
max
EB
0.008 ±
0.003
0.203 ± 0.010 ±
0.076 0.006
0.254 ± 0.012 ±
0.152 0.008
0.305 ± 0.016 ±
0.203 0.010
0.406 ± 0.018 ±
0.254 0.010
0.457 ± 0.018 ±
0.254 0.010
0.457 ±
0.254
0.022 ± 0.559 ±
0.012 0.305
CB
0.012 ±
0.003
0.305 ± 0.018 ±
0.076 0.004
0.457 ± 0.022 ± 0.559 ± 0.040 ± 1.016 ±
0.102 0.005 0.127 0.005 0.127
0.045 ± 1.143 ±
0.005 0.127
0.045 ± 1.143 ±
0.005 0.127
0.045 ± 1.143 ±
0.005 0.127
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X2Y® FILTER & DECOUPLING CAPACITORS
THE X2Y® DESIGN - A BALANCED, LOW ESL, “CAPACITOR CIRCUIT
The X2Y® capacitor design starts with standard 2 terminal MLC capacitor’s opposing electrode sets, A & B, and adds a third electrode set (G) which
surround each A & B electrode. The result is a highly vesatile three node capacitive circuit containing two tightly matched, low inductance capacitors
in a compact, four-terminal SMT chip.
EMI FILTERING:
The X2Y® component contains two shunt or “line-to-ground” Y capacitors. Ultra-low ESL (equivalent
series inductance) and tightly matched inductance of these capacitors provides unequaled high frequency
Common-Mode noise filtering with low noise mode conversion. X2Y® components reduce EMI emissions
far better than unbalanced discrete shunt capacitors or series inductive filters. Differential signal loss is
determined by the cut off frequency of the single line-to-ground (Y) capacitor value of an X2Y®.
POWER BYPASS / DECOUPLING
For Power Bypass applications, X2Ys® two “Y” capacitors are connected in parallel. This doubles the total
capacitance and reduces their mounted inductance by 80% or 1/5th the mounted inductance of similar sized
MLC capacitors enabling high-performance bypass networks with far fewer components and vias. Low ESL
delivers improved High Frequency performance into the GHz range.
GSM RFI ATTENUATION IN AUDIO & ANALOG
GSM handsets transmit in the 850 and 1850 MHz bands using a TDMA pulse
rate of 217Hz. These signals cause the GSM buzz heard in a wide range of audio
products from headphones to concert hall PA systems or “silent” signal errors
created in medical, industrial process control, and security applications. Testing
was conducted where an 840MHz GSM handset signal was delivered to the
inputs of three different amplifier test circuit configurations shown below whose
outputs were measured on a HF spectrum analyzer.
1) No input filter, 2 discrete MLC 100nF power bypass caps.
2) 2 discrete MLC 1nF input filter, 2 discrete MLC 100nF power bypass caps.
3) A single X2Y 1nF input filter, a single X2Y 100nF power bypass cap.
X2Y configuration provided a nearly flat response above the ambient and up to
10 dB imrpoved rejection than the conventional MLCC configuration.
AMPLIFIER INPUT FILTER EXAMPLE
In this example, a single Johanson X2Y® component was used to filter noise at the input of a
DC instrumentation amplifier. This reduced component count by 3-to-1 and costs by over 70%
vs. conventional filter components that included 1% film Y-capacitors.
Parameter
DC offset shift
Common mode rejection
X2Y®
10nF
< 0.1 µV
91 dB
Discrete
10nF, 2 @ 220 pF
< 0.1 µV
92 dB
Comments
Referred to input
Source: Analog Devices, “A Designer’s Guide to Instrumentation Amplifiers (2nd Edition)” by Charles Kitchin and Lew Counts
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X2Y® FILTER & DECOUPLING CAPACITORS
COMMON MODE CHOKE REPLACEMENT
• Superior High Frequency Emissions Reduction
• Smaller Sizes, Lighter Weight
• No Current Limitation
• Vibration Resistant
• No Saturation Concerns
See our website for a detailed application note with component
test comparisons and circuit emissions measurements.
Measured Common Mode Rejection
PARALLEL CAPACITOR SOLUTION
A common design practice is to parallel decade capacitance values to
extend the high frequency performance of the filter network. This causes an
unintended and often over-looked effect of anti-resonant peaks in the filter
networks combined impedance. X2Y’s very low mounted inductance allows
designers to use a single, higher value part and completely avoid the anti-
resonance problem. The impedance graph on right shows the combined
mounted impedance of a 1nF, 10nF & 100nF 0402 MLC in parrallel in RED.
The MLC networks anti-resonance peaks are nearly 10 times the desired
impedance. A 100nF and 47nF X2Y are plotted in BLUE and GREEN. (The
total capacitance of X2Y (Circuit 2) is twice the value, or 200nF and 98nF in this
example.) The sigle X2Y is clearly superior to the three paralleled MLCs.
X2Y HIGH PERFORMANCE POWER BYPASS - IMPROVE PERFORMANCE, REDUCE SPACE & VIAS
Actual measured performance of two high performance SerDes FPGA designs demonstrate how a 13 component X2Y bypass network
significantly out performs a 38 component MLC network.
For more information see https://johansondielectrics.com/downloads/JDI_X2Y_STXII.pdf
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