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501JCA20M0000CAF 数据手册 - Silicon Labs（芯科）
制造商:
Silicon Labs（芯科）
分类:
振荡器
封装:
SMD-4
描述:
SILICON LABS 501JCA20M0000CAF 振荡器, MEMS, CMEMS®, Si50x系列, 20 MHz, 20 ppm, 3.3 V, SMD, 3.2mm x 2.5mm, CMOS
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501JCA20M0000CAF数据手册
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17
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 varia-
tion 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 op-
erating 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
Insulation Resistance (Ohm-Farads)
1,000
10,000
100
0
0
20
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,
contact factory for
additional values
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.
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