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SRX Series RESISTANCE STANDARD
SRX Series Resistance Standard

SRX Standard Resistor. Economical high performance resistance standards.
SRA Standard Resistor. Economical high performance resistance standards.
SRC Standard Resistor. Economical high performance resistance standards.
SRX/SRA SERIES - Designed for use as a reference or working standard in industrial, research, and educational laboratories.
SRC SERIES - Economical high resistance, high voltage standards for applications requiring values up to 1.9 TeraOhm. SRC Maximum Voltage: 5000 V.

  • Very stable - up to 10 ppm/yr

  • Initial calibration data traceable to NIST provided

  • Excellent TC - as low as 1 ppm/°C

  • Wide range of values - 1 mΩ to 10 TΩ

  • Optional values and transit case available

Model
SRX- SRA-

Nominal
Value
(Ohm)

Adjustment to
Nominal (ppm)
SRX        SRA

Calibration
Uncertainty
(ppm)

Stability
1 year (ppm)


SRX       SRA

Power Coef.
(ppm/mW)

SRX     SRA

Max. Power
(W)


SRX       SRA

Max. Current



SRX               SRA

0.001
0.0019
0.002
0.01
0.019
0.1
0.19
1
1.9
10
19
50
100
190
1K
1.9K
10K
19K
100K
190K
1M
1.9M
10M
19M
100M

0.001
0.0019
0.002
0.01
0.019
0.1
0.19
1
1.9
10
19
50
100
190
1 k
1.9 k
10 k
19 k
100 k
190 k
1 M
1.9 M
10 M
19 M
100 M

200
200
200
200
200
200
200
20
20
10
10
10
10
10
10
10
10
10
10
10
20
20
20
20
50

500
500
500
500
500
500
500
100
100
30
30
20
20
20
20
20
20
20
20
20
50
50
50
50
100

100
100
100
100
100
20
20
10
10
5
5
5
5
5
2
2
2
2
2
2
5
5
10
10
30

50
50
50
50
50
50
50
20
20
10
10
10
10
10
10
10
10
10
10
10
15
15
25
50
100

100
100
100
100
100
100
100
50
50
18
18
15
15
15
15
15
15
15
15
15
20
20
50
50
100

0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.5
0.5
0.15
0.15
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.15
0.15
0.25
0.7
1.2

0.1
0.1
0.1
0.1
0.1
0.1
0.1
1
1
0.25
0.25
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.5
0.5
0.5
0.7
1.2

0.2
0.38
0.2
2
3.8
1
1.7
0.25
0.25
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.05
-

0.2
0.38
0.2
2
3.8
1
1.7
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0.5
0.1
0.05
-

14 A
14 A
10 A
14 A
14 A
3 A
3 A
0.5 A
0.36 A
0.1 A
70 mA
45 mA
30 mA
23 mA
10 mA
7 mA
3 mA
2.2mA
1 mA
0.7 mA
0.3 mA
0.23mA
0.1 mA
50 μA
10 μA

14 A
14 A
10 A
14 A
14 A
3 A
3 A
1 A
0.73 A
0.3 A
23 mA
140 mA
0.1 A
70 mA
30 mA
22 mA
10 mA
7 mA
3 mA
2.2 mA
1 mA
0.5 mA
0.1 mA
50 μA
10 μA

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  need additional information.

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