( Khách hàng chọn model, thông số chi tiết tại mục Datasheet, Download/video. )
Có sẵn các giá trị từ 1 pF tới 10,000 µF
Độ ổn định ±0.01 %/năm
Cấu hình 2-5 đầu nối, tùy thuộc model
TC=10 ppm/°C
datasheet
The SCA Standard Capacitor series are highly stable cost-effective capacitance standards with low temperature coefficient, low losses and a wide range of values of 1 pF - 10,000 µF. The cost and flexibility make this our most popular capacitance standard.
From 1 pF to 10 pF, these are made from precision air capacitors. Up to 1 µF, the standard capacitors are constructed of fixed mica capacitors of very high stability for use as two- or three-terminal reference or working standards in the laboratory. Above 1 µF they are made with hermetically sealed polypropylene sulfide,
Typical capacitors, observed over decades, have shown random fluctuations of less than + 0.01% in measured capacitance with no evidence of systemic drift.
Basic Specifications for SCA Standard Capacitors
(Full Specifications can be found on datasheet)
Calibration:A certificate of calibration that is accredited by A2LA to ISO-17025 is provided with each unit
-
|
Nominal value
|
Model
|
Adjustment to nominal
|
Temperature coefficient(ppm/°C)
|
Calibration* frequency
|
Dissipation (typical)
|
Stability(per year)
|
Terminals
|
Capacitor Type
|
|
1 pF
|
SCA-1pF
|
±0.1%
|
+20 to +40
|
1 kHz
|
0.002
|
±0.1 pF
|
2 bnc + gnd
|
Air capacitors
|
|
1.9 pF
|
SCA-1.9pF
|
±0.1%
|
+20 to +40
|
1 kHz
|
0.002
|
±0.1 pF
|
2 bnc + gnd
|
Air capacitors
|
|
10 pF
|
SCA-10pF
|
±0.1%
|
+20 to +40
|
1 kHz
|
0.002
|
±0.1 pF
|
2 bnc + gnd
|
Air capacitors
|
|
19 pF
|
SCA-19pF
|
±0.1%
|
+20 to +40
|
1 kHz
|
0.002
|
±0.1 pF
|
2 bnc + gnd
|
Silvered Mica
|
|
100 pF
|
SCA-100pF
|
±0.1 pF
|
20
|
1 kHz
|
0.0005
|
±100 ppm
|
2 bnc + gnd
|
Silvered Mica
|
|
190 pF
|
SCA-190pF
|
±0.1 pF
|
20
|
1 kHz
|
0.0005
|
±100 ppm
|
2 bnc + gnd
|
Silvered Mica
|
|
1 nF
|
SCA-1nF
|
±0.02%
|
20
|
1 kHz
|
0.0003
|
±100 ppm
|
2 bnc + gnd
|
Silvered Mica
|
|
1.9 nF
|
SCA-1.9nF
|
±0.02%
|
20
|
1 kHz
|
0.0003
|
±100 ppm
|
2 bnc + gnd
|
Silvered Mica
|
|
10 nF
|
SCA-10nF
|
±0.02%
|
20
|
1 kHz
|
0.0003
|
±100 ppm
|
2 bp’s + gnd
|
Silvered Mica
|
|
19 nF
|
SCA-19nF
|
±0.02%
|
20
|
1 kHz
|
0.0003
|
±100 ppm
|
2 bp’s + gnd
|
Silvered Mica
|
|
100 nF
|
SCA-100nF
|
±0.02%
|
20
|
1 kHz
|
0.0003
|
±100 ppm
|
2 bp’s + gnd
|
Silvered Mica
|
|
190 nF
|
SCA-190nF
|
±0.02%
|
20
|
1 kHz
|
0.0003
|
±100 ppm
|
2 bp’s + gnd
|
Silvered Mica
|
|
1 μF
|
SCA-1μF
|
±0.02%
|
20
|
1 kHz
|
0.0002
|
±100 ppm
|
2 bp’s + gnd
|
Silvered Mica
|
|
1.9 μF
|
SCA-1.9μF
|
±0.02%
|
20
|
1 kHz
|
0.0002
|
±100 ppm
|
4 bp’s + gnd
|
Silvered Mica
|
|
5 μF
|
SCA-5μF
|
±0.02%
|
±50
|
1 kHz
|
0.0005
|
±200 ppm
|
4 bp’s + gnd
|
MPPS
|
|
10 μF
|
SCA-10μF
|
±0.04%
|
±50
|
100 Hz
|
0.0005
|
±200 ppm
|
4 bp’s + gnd
|
MPPS
|
|
19 μF
|
SCA-19μF
|
±0.04%
|
±50
|
100 Hz
|
0.0005
|
±200 ppm
|
4 bp’s + gnd
|
MPPS
|
|
100 μF
|
SCA-100μF
|
±0.05%
|
±50
|
100 Hz
|
0.001
|
±500 ppm
|
4 bp’s + gnd
|
MPPS
|
|
190 μF
|
SCA-190μF
|
±0.05%
|
±50
|
100 Hz
|
0.001
|
±500 ppm
|
4 bp’s + gnd
|
MPPS
|
|
1,000 μF
|
SCA-1000μF
|
±0.4%
|
-150
|
100 Hz
|
0.001
|
±500 ppm
|
4 bp’s + gnd
|
MPPS
|
|
5,000 μF
|
SCA-5000μF
|
±2%
|
-150
|
100 Hz
|
0.001
|
-
|
4 bp’s + gnd
|
Polypropylene
|
|
10,000 μF
|
SCA-10000μF
|
±2%
|
-150
|
100 Hz
|
0.001
|
-
|
4 bp’s + gnd
|
Polypropylene
|
