X7R Dielectric
General Specifications
X7R formulations are called “temperature stable” ceramics
and fall into EIA Class II materials. X7R is the most popular of
these intermediate dielectric constant materials. Its tempera-
ture variation of capacitance is within ±±15 from
-11°C to +±21°C. This capacitance change is non-linear.
Capacitance for X7R varies under the influence of electrical
operating conditions such as voltage and frequency.
X7R dielectric chip usage covers the broad spectrum of
industrial applications where known changes in capacitance
due to applied voltages are acceptable.
PART NUMBER (see page 2 for complete part number explanation)
0805
5
C
103
M
A
T
2
A
Size
(L" x W")
Voltage
4V = 4
Dielectric
X7R = C
Capacitance
Code (In pF)
2 Sig. Digits +
Number of Zeros
Capacitance
Tolerance
J = ± 15%
Failure
Rate
A = Not
Applicable
Terminations
Packaging
2 = 7" Reel
Special
Code
A = Std. Product
T = Plated Ni
6.3V = 6
±0V = Z
±6V = Y
21V = 3
10V = 1
±00V = ±
200V = 2
100V = 7
4 = ±3" Reel
7 = Bulk Cass.
9 = Bulk
and Sn
K = ±±05
7 = Gold Plated%
M = ± 205
Z= FLEXITERM®%%
%≤±μF only
Contact
Factory For
Multiples
%Optional termination
%%See FLEXITERM®
X7R section
NOTE: Contact factory for availability of Termination and Tolerance Options for Specific Part Numbers.
Contact factory for non-specified capacitance values.
X7R Dielectric
Insulation Resistance vs Temperature
⌬ Capacitance vs. Frequency
Typical Temperature Coefficient
10,000
1,000
100
+30
10
+20
+10
5
0
-5
0
-10
-20
-30
-10
-15
-20
-25
0
0
20
40
60
80
100
120
-60 -40
100 140
120
1KHz
10 KHz
100 KHz
1 MHz
10 MHz
-20
0
20 40 60 80
Frequency
Temperature °C
Temperature °C
Variation of Impedance with Cap Value
Impedance vs. Frequency
1,000 pF vs. 10,000 pF - X7R
0805
Variation of Impedance with Chip Size
Impedance vs. Frequency
100,000 pF - X7R
Variation of Impedance with Chip Size
Impedance vs. Frequency
10,000 pF - X7R
10
10.00
10
1206
0805
1210
1206
0805
1210
1,000 pF
10,000 pF
1.0
0.1
.01
1.00
1.0
0.10
0.01
0.1
.01
100
1,000
1
10
100
1000
10
100
1,000
1
10
Frequency, MHz
Frequency, MHz
Frequency, MHz
16
AVAGO [ AVAGO TECHNOLOGIES LIMITED ]
