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 temperature variation of capacitance is within ±15% from -55°C to
+125°C. This capacitance change is non-linear.
Capacitance for X7R varies under the influence of electrical operating con-ditions 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 4 FOR COMPLETE PART NUMBER EXPLANATION)
0805
5
С
103
M
A
T
2
A
Size
(L” x W”)
Voltage
4V = 4
6.3V = 6
10V = Z
16V = Y
25V = 3
50V = 5
100V = 1
200V = 2
500V = 7
Dielectric
X7R = C
Capacitance
Code (In pF)
2 Sig. Digits +
Number of Zeros
Capacitance
Tolerance
J = ± 5%*
K = ±10%
M = ± 20%
Failure
Rate
A = Not
Applicable
Terminations
T = Plated Ni and Sn
Z= FLEXITERM®**
Packaging
2 = 7” Reel
4 = 13” Reel
*Optional termination
Contact
Factory For
Multiples
Special
Code
A = Std.
Product
*≤1μF only,
contact factory for
additional values
**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.
The Important Information/Disclaimer is incorporated in the catalog where these specifications came from or available
online at www.kyocera-avx.com/disclaimer/ by reference and should be reviewed in full before placing any order.
TDS-SMDMLCC-0028 | Rev 3
– surface mount ceramic capacitor products –
19
X7R Dielectric
Specifications and Test Methods
Parameter/Test
Operating Temperature Range
Capacitance
Dissipation Factor
Measuring Conditions
Temperature Cycle Chamber
Freq.: 1.0 kHz ± 10%
Voltage: 1.0Vrms ± .2V
For Cap > 10µF, 0.5Vrm @ 120Hz
Insulation Resistance
10,000MΩ or 500MΩ - µF,
whichever is less
Charge device with rated voltage for
120 ± 5 secs @ room temp/humidity
Dielectric Strength
No breakdown or visual defects
Charge device with 250% of rated voltage for 1-5 seconds, w/
charge and discharge current limited to 50 mA (max)
Note: Charge device with 150% of rated voltage for 500V devices.
Resistance to
Flexure
Stresses
Appearance
Capacitance
Variation
Dissipation
Factor
Insulation
Resistance
Solderability
Resistance to
Solder Heat
Thermal Shock
Load Life
Appearance
Capacitance
Variation
Dissipation
Factor
Load
Humidity
No defects
≤ ±12%
≥ Initial Value x 0.3
≥ 95% of each terminal should be covered with
fresh solder
No defects,
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