Discoidal MLC
Feed-Through Capacitors and Filters
DC Style (US Preferred Sizes) / XB Style (European Preferred Sizes)
XF Style (Feed-Through Discoidal)
APPLICATION INFORMATION ON DISCOIDAL
LOWEST CAPACITANCE IMPEDANCES TO GROUND
A discoidal MLC capacitor has very low impedance associated with its ground path
since the signal is presented with a multi-directional path. These electrode pathsꢁ
which can be as many as +00ꢁ allow for low ESR and ESL which are the major ele-
ments in impedance at high frequencies.
The assembled discoidal element or feed-thru allows signal to be fed in through a
chassis or bulkheadꢁ conditioned as it passes through the discoidalꢁ and isolated by
the chassis and discoidal from the original signal. An example of this application
would be in an AFT circuit where the AC noise signal would be required to be
stripped from the DC control signal. Other applications include single line EMIꢀRFI
suppressionꢁ L-C filter constructionꢁ and coaxial shield bypass filtering.
OD*
The shape of the discoidal lends itself to filter construction. The short length allows
ID
compact construction where L-C construction is desired.
The size freedom associated with this element allows almost any insideꢀ
T Max.
outside diameter combination. By allowing the inside diameter to equal
the center insulator diameter of a coaxial signal line and special termination tech-
niquesꢁ this device will allow bypass filtering of a floating shield to ground.
These surfaces are metallized
.127 (0.005). minimum wide except
for DC61, DC26 and DC63
where metallized surfaces
Discoidal capacitors are available in three temperature coefficients (C0Gꢁ X7Rꢁ ZꢂU)
and a variety of sizesꢁ the most standard of which appear in this catalog.
INSERTION LOSS
are .127 (0.005) maximum.
0
-10
+
*Tol. = .254 (0.010) or 3%, whichever is greater
-
SINGLE CHIP
-20
AVX’s DC Series 50V, 100V, 200V, C0G
-30
and X7R parts are capable of meeting
the requirements of MIL-PRF-31033.
-40
DISCOIDAL
-50
-60
-70
-80
0
100 200 300 400 500 600 700 800 900 1000
f (MHz)
ELECTRICAL SPECIFICATIONS
Temperature Coefficient
Insulation Resistance 125°C (MIL-STD-101 Method ±01)
C0G and X7R: +0K MΩ or +00 MΩ-μFꢁ whichever is less.
ZꢂU: +K MΩ or +00 MΩ-μFꢁ whichever is less.
Dielectric Withstanding Voltage 25°C (Flash Test)*
C0G and X7R: 1ꢂ05 rated voltage for ꢂ seconds with ꢂ0 mA max
charging current. ꢂ00ꢄ rated units will be tested at 7ꢂ0 ꢄDC
ZꢂU: 1005 rated voltage for ꢂ seconds with ꢂ0 mA max charging current.
Life Test (+000 hrs)
C0G and X7R: 1005 rated voltage at ꢃ+1ꢂ/C (ꢂ00 ꢄolt units
@ 600 ꢄDC)
ZꢂU: +ꢂ05 rated voltage at ꢃ8ꢂ/C
Moisture Resistance (MIL-STD-101 Method +06)
C0Gꢁ X7Rꢁ ZꢂU: Ten cycles with no voltage applied.
Thermal Shock (MIL-STD-101 Method +07ꢁ Condition A)
Immersion Cycling (MIL-STD-101 Method +04ꢁ Condition B)
C0G: A Temperature Coefficient - 0 ±±0 ppmꢀ/Cꢁ -ꢂꢂ/ ꢃ+1ꢂ/C
X7R: C Temperature Coefficient - ±+ꢂ5ꢁ -ꢂꢂ/ to ꢃ+1ꢂ/C
ZꢂU: E Temperature Coefficient - ꢃ11ꢁ -ꢂ65ꢁ ꢃ+0/ to ꢃ8ꢂ/C
Capacitance Test (MIL-STD-101 Method ±0ꢂ)
C0G: 1ꢂ/Cꢁ +.0±0.1 ꢄrms at +KHzꢁ for ≤+00 pF use + MHz
X7R: 1ꢂ/Cꢁ +.0±0.1 ꢄrms at +KHz
ZꢂU: 1ꢂ/Cꢁ 0.ꢂ ꢄrms max at +KHz
Dissipation Factor 25°C
C0G: 0.+ꢂ5 Max @ 1ꢂ/Cꢁ +.0±0.1 ꢄrms at +KHzꢁ for ≤+00 pF use + MHz
X7R: 1.ꢂ5 Max @ 1ꢂ/Cꢁ +.0±0.1 ꢄrms at +KHz
ZꢂU: ±.05 Max @ 1ꢂ/Cꢁ 0.ꢂ ꢄrms max at +KHz
Insulation Resistance 25°C (MIL-STD-101 Method ±01)
C0G and X7R: +00K MΩ or +000 MΩ-μFꢁ whichever is less.
ZꢂU: +0K MΩ or +000 MΩ-μFꢁ whichever is less.
HOW TO ORDER
DC61
5
A
561
K
A
5
1
06
AVX
Voltage Temperature
Capacitance Code
(1 significant digits
ꢃ no. of zeros)
Examples:
+0 pF = +00
+00 pF = +0+
+ꢁ000 pF = +01
11ꢁ000 pF = 11±
110ꢁ000 pF = 114
+ μF = +0ꢂ
Capacitance
Tolerance
C0G: J = ±ꢂ5
K = ±+05
M = ±105
X7R: K = ±+05
M = ±105
Test
Termination
Inside
Maximum
Thickness
Style
ꢂ0ꢄ = ꢂ Coefficient
Level
ꢂ = Silver
Diameter
See Pages +00ꢄ = +
+09-++0 100ꢄ = 1
ꢂ00ꢄ = 7
C0G = A
X7R = C
ZꢂU = E
A = Standard (AꢄX Standard) See Pages 06 = +.ꢂ1 (0.060)
+01-+04 +0 = 1.ꢂ4 (0.+00)
ZꢂU: M = ±105
Z = ꢃ80 -105
P = GMꢄ
For dimensionsꢁ voltages or values not specifiedꢁ please consult factory.
108
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