16
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
-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)
% Cap Change
10
-60 -40 -20 0 20 40 60 80 100 120 140
Temperature °C
X7R Dielectric
Typical Temperature Coefficient
5
0
-5
-10
-15
-20
-25
% Capacitance
+10
+20
+30
0
-10
-20
-30
1KHz 10 KHz 100 KHz 1 MHz 10 MHz
Frequency
Capacitance vs. Frequency
1,000
10,000
100
0020 120
40 60 80
Temperature °C
Insulation Resistance vs Temperature
100
Impedance,
10 100 1000
Frequency, MHz
Variation of Impedance with Cap Value
Impedance vs. Frequency
1,000 pF vs. 10,000 pF - X7R
0805
0.10
0.01
1.00
1,000 pF
10,000 pF
10.00
Impedance,
110
100 1,000
Frequency, MHz
Variation of Impedance with Chip Size
Impedance vs. Frequency
100,000 pF - X7R
0.1
.01
1.0
1206
0805
10
1210
Impedance,
110
100 1,000
Frequency, MHz
Variation of Impedance with Chip Size
Impedance vs. Frequency
10,000 pF - X7R
0.1
.01
1.0
1206
0805
10
1210
0805
Size
(L" x W")
5
Voltage
4V = 4
6.3V = 6
10V = Z
16V = Y
25V = 3
50V = 5
100V = 1
200V = 2
500V = 7
C
Dielectric
X7R = C
103
Capacitance
Code (In pF)
2 Sig. Digits +
Number of Zeros
M
Capacitance
Tolerance
J = ± 5%*
K = ±10%
M = ± 20%
*≤1μF only
2
Packaging
2 = 7" Reel
4 = 13" Reel
7 = Bulk Cass.
9 = Bulk
Contact
Factory For
Multiples
A
Special
Code
A = Std. Product
T
Terminations
T = Plated Ni
and Sn
7 = Gold Plated*
Z= FLEXITERM®**
A
Failure
Rate
A = Not
Applicable
*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.
17
X7R Dielectric
Specifications and Test Methods
Parameter/Test X7R Specification Limits Measuring Conditions
Operating Temperature Range -55ºC to +125ºC Temperature Cycle Chamber
Capacitance Within specified tolerance
≤ 2.5% for ≥ 50V DC rating Freq.: 1.0 kHz ± 10%
Dissipation Factor ≤ 3.0% for 25V DC rating Voltage: 1.0Vrms ± .2V
≤ 3.5% for 16V DC rating For Cap > 10 μF, 0.5Vrms @ 120Hz
≤ 5.0% for ≤ 10V DC rating
Insulation Resistance 100,000MΩ or 1000MΩ - μF, Charge device with rated voltage for
whichever is less 120 ± 5 secs @ room temp/humidity
Charge device with 300% of rated voltage for
Dielectric Strength No breakdown or visual defects 1-5 seconds, w/charge and discharge current
limited to 50 mA (max)
Note: Charge device with 150% of rated
voltage for 500V devices.
Appearance No defects Deflection: 2mm
Capacitance Test Time: 30 seconds
Resistance to Variation ≤ ±12%
Flexure Dissipation Meets Initial Values (As Above)
Stresses Factor
Insulation ≥ Initial Value x 0.3
Resistance
Solderability ≥ 95% of each terminal should be covered Dip device in eutectic solder at 230 ± 5ºC
with fresh solder for 5.0 ± 0.5 seconds
Appearance No defects, <25% leaching of either end terminal
Capacitance
Variation ≤ ±7.5%
Dip device in eutectic solder at 260ºC for 60
Dissipation Meets Initial Values (As Above) seconds. Store at room temperature for 24 ± 2
Resistance to Factor hours before measuring electrical properties.
Solder Heat Insulation Meets Initial Values (As Above)
Resistance
Dielectric Meets Initial Values (As Above)
Strength
Appearance No visual defects Step 1: -55ºC ± 2º 30 ± 3 minutes
Capacitance
Variation ≤ ±7.5% Step 2: Room Temp ≤ 3 minutes
Dissipation Meets Initial Values (As Above) Step 3: +125ºC ± 2º 30 ± 3 minutes
Thermal Factor
Shock Insulation Meets Initial Values (As Above) Step 4: Room Temp ≤ 3 minutes
Resistance
Dielectric Meets Initial Values (As Above) Repeat for 5 cycles and measure after
Strength 24 ± 2 hours at room temperature
Appearance No visual defects
Capacitance
Variation ≤ ±12.5%
Dissipation ≤ Initial Value x 2.0 (See Above)
Insulation ≥ Initial Value x 0.3 (See Above)
Resistance
Dielectric Meets Initial Values (As Above)
Strength
Appearance No visual defects
Capacitance
Variation ≤ ±12.5%
Load Dissipation ≤ Initial Value x 2.0 (See Above)
Humidity Factor
Insulation ≥ Initial Value x 0.3 (See Above)
Resistance
Dielectric Meets Initial Values (As Above)
Strength
Charge device with 1.5 rated voltage (≤ 10V) in
test chamber set at 125ºC ± 2ºC
for 1000 hours (+48, -0)
Remove from test chamber and stabilize
at room temperature for 24 ± 2 hours
before measuring.
Store in a test chamber set at 85ºC ± 2ºC/
85% ± 5% relative humidity for 1000 hours
(+48, -0) with rated voltage applied.
Remove from chamber and stabilize at
room temperature and humidity for
24 ± 2 hours before measuring.
1mm/sec
90 mm
18
X7R Dielectric
Capacitance Range
SIZE 0201 0402 0603 0805 1206
Soldering Reflow Only Reflow/Wave Reflow/Wave Reflow/Wave Reflow/Wave
Packaging All Paper All Paper All Paper Paper/Embossed Paper/Embossed
(L) Length mm 0.60 ± 0.03 1.00 ± 0.10 1.60 ± 0.15 2.01 ± 0.20 3.20 ± 0.20
(in.) (0.024 ± 0.001) (0.040 ± 0.004) (0.063 ± 0.006) (0.079 ± 0.008) (0.126 ± 0.008)
(W) Width mm 0.30 ± 0.03 0.50 ± 0.10 0.81 ± 0.15 1.25 ± 0.20 1.60 ± 0.20
(in.) (0.011 ± 0.001) (0.020 ± 0.004) (0.032 ± 0.006) (0.049 ± 0.008) (0.063 ± 0.008)
(t) Terminal mm 0.15 ± 0.05 0.25 ± 0.15 0.35 ± 0.15 0.50 ± 0.25 0.50 ± 0.25
(in.) (0.006 ± 0.002) (0.010 ± 0.006) (0.014 ± 0.006) (0.020 ± 0.010) (0.020 ± 0.010)
WVDC 10 16 25 16 25 50 6.3 10 16 25 50 100 200 6.3 10 16 25 50 100 200 6.3 10 16 25 50 100 200 500
Cap 100 A A A
(pF) 150 A A A
220 A A A C
330 AAA C GGG JJJJJJ K
470 AA C GGG JJJJJJ K
680 AA C GGG JJJJJJ K
1000 A A C G G G JJJJJJ K
1500 A C G G JJJJJJ JJJJJJM
2200 A C G G JJJJJJ JJJJJJM
3300 A C C G G JJJJJJ JJJJJJM
4700 A C C G G JJJJJJ JJJJJJM
6800 A C C G G JJJJJJ JJJJJJP
Cap 0.010 A C C G G JJJJJJ JJJJJJP
(μF 0.015 C G G JJJJJJ JJJJJM
0.022 C G G JJJJJN JJJJJM
0.033 G G JJJJN JJJJJM
0.047 G G G JJJJN JJJJJM
0.068 G G G JJJJN JJJJJP
0.10 C GGGG JJJJN JJJJMP
0.15 G G J J J N N JJJJQ
0.22 G G J* J J N N N JJJJQ
0.33 NNNNN J JMPQ
0.47 J* NNNNN MMMPQ
0.68 NNN MMQQQ
1.0 J* J* N N N M M Q Q Q
1.5 PQQ
2.2 J* P* Q Q Q
3.3
4.7 P* P* Q* Q* Q*
10 P* Q* Q*
22 Q*
47
100
WVDC 10 16 25 16 25 50 6.3 10 16 25 50 100 200 6.3 10 16 25 50 100 200 6.3 10 16 25 50 100 200 500
SIZE 0201 0402 0603 0805 1206
Letter ACEGJKMNPQXYZ
Max. 0.33 0.56 0.71 0.90 0.94 1.02 1.27 1.40 1.52 1.78 2.29 2.54 2.79
Thickness (0.013) (0.022) (0.028) (0.035) (0.037) (0.040) (0.050) (0.055) (0.060) (0.070) (0.090) (0.100) (0.110)
PAPER EMBOSSED
*Optional Specifications – Contact factory
19
X7R Dielectric
Capacitance Range
SIZE 0101 0201 0402 0603 0805 1206
Soldering Reflow Only Reflow Only Reflow/Wave Reflow/Wave Reflow/Wave Reflow/Wave
Packaging
Paper/Embossed
All Paper All Paper All Paper Paper/Embossed Paper/Embossed
(L) Length mm 0.40 ± 0.02 0.60 ± 0.03 1.00 ± 0.10 1.60 ± 0.15 2.01 ± 0.20 3.20 ± 0.20
(in.) (0.016 ± 0.0008) (0.024 ± 0.001) (0.040 ± 0.004) (0.063 ± 0.006) (0.079 ± 0.008) (0.126 ± 0.008)
(W) Width mm 0.20 ± 0.02 0.30 ± 0.03 0.50 ± 0.10 0.81 ± 0.15 1.25 ± 0.20 1.60 ± 0.20
(in.) (0.008 ± 0.0008) (0.011 ± 0.001) (0.020 ± 0.004) (0.032 ± 0.006) (0.049 ± 0.008) (0.063 ± 0.008)
(t) Terminal mm 0.20 ± 0.02 0.15 ± 0.05 0.25 ± 0.15 0.35 ± 0.15 0.50 ± 0.25 0.50 ± 0.25
(in.) (0.008 ± 0.0008) (0.006 ± 0.002) (0.010 ± 0.006) (0.014 ± 0.006) (0.020 ± 0.010) (0.020 ± 0.010)
WVDC 10 10 16 25 16 25 50 6.3 10 16 25 50 100 200 6.3 10 16 25 50 100 200 6.3 10 16 25 50 100 200 500
Cap 100 A A A A
(pF) 150 A A A A
220 A A A A C
330 A AAA C GGG JJJJJJ K
470 A AA C GGG JJJJJJ K
680 A AA C GGG JJJJJJ K
1000 A A A C G G G J J JJJJ K
1500 A C G G J J JJJJ JJJJJJM
2200 A C G G J J JJJJ JJJJJJM
3300 A C C G G J J JJJJ JJJJJJM
4700 A C C G G J J JJJJ JJJJJJM
6800 A C C G G J J JJJJ JJJJJJP
Cap 0.010 A C C G G J J JJJJ JJJJJJP
(µF 0.015 C G G J J JJJJ JJJJJM
0.022 C C G G J J J J J N J J J J J M
0.033 C C G G J J J J N J J J J J M
0.047 C C G G G J J J J N J J J J J M
0.068 C C G G G J J J J N J J J J J P
0.10 C C G G G G J J J J N J J J J M P
0.15 G G J J J N N J J J J Q
0.22 G G J* J J N N N J J J J Q
0.33 NNNNN J JMPQ
0.47 J* NNNNN MMMPQ
0.68 NNN MMQQQ
1.0 J*J* NNNN MMQQQ
1.5 PQQ
2.2 J* P* Q Q Q Q*
3.3
4.7 P* P* Q* Q* Q* Q*
10 P* P* Q* Q* Q*
22 Q* Q*
47
100
WVDC 10 10 16 25 16 25 50 6.3 10 16 25 50 100 200 6.3 10 16 25 50 100 200 6.3 10 16 25 50 100 200 500
SIZE 0101 0201 0402 0603 0805 1206
Letter ACEGJ KMNPQXYZ
Max. 0.33 0.56 0.71 0.90 0.94 1.02 1.27 1.40 1.52 1.78 2.29 2.54 2.79
Thickness (0.013) (0.022) (0.028) (0.035) (0.037) (0.040) (0.050) (0.055) (0.060) (0.070) (0.090) (0.100) (0.110)
PAPER EMBOSSED
*Optional Specifications – Contact factory