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 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
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
*≤1µF only,
contact factory for additional values
T
Terminations
T = Plated Ni
and Sn
Z= FLEXITERM®**
*Optional termination
2
A
Packaging
2 = 7" Reel
4 = 13" Reel
Special
Code
A = Std. Product
Contact
Factory For
Multiples
**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.
111517
19
X7R Dielectric
Specifications and Test Methods
Parameter/Test
Operating Temperature Range
Capacitance
Dissipation Factor
Insulation Resistance
Dielectric Strength
Resistance to
Flexure
Stresses
Appearance
Capacitance
Variation
Dissipation
Factor
Insulation
Resistance
Solderability
Resistance to
Solder Heat
Thermal
Shock
Load Life
Load
Humidity
20
Appearance
Capacitance
Variation
Dissipation
Factor
Insulation
Resistance
Dielectric
Strength
Appearance
Capacitance
Variation
Dissipation
Factor
Insulation
Resistance
Dielectric
Strength
Appearance
Capacitance
Variation
Dissipation
Factor
Insulation
Resistance
Dielectric
Strength
Appearance
Capacitance
Variation
Dissipation
Factor
Insulation
Resistance
Dielectric
Strength
X7R Specification Limits
-55ºC to +125ºC
Within specified tolerance
≤ 10% for ≥ 50V DC rating
≤ 12.5% for 25V DC rating
≤ 12.5% for 25V and 16V DC rating
≤ 12.5% for ≤ 10V DC rating
100,000MΩ or 1000MΩ - µF,
whichever is less
No breakdown or visual defects
No defects
≤ ±12%
Measuring Conditions
Temperature Cycle Chamber
Freq.: 1.0 kHz ± 10%
Voltage: 1.0Vrms ± .2V
For Cap > 10µF, 05Vrm @ 120Hz
Charge device with rated voltage for
120 ± 5 secs @ room temp/humidity
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.
Deflection: 2mm
Test Time: 30 seconds
Meets Initial Values (As Above)
≥ Initial Value x 0.3
≥ 95% of each terminal should be covered
with fresh solder
No defects,
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