Wideband Current Monitors

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wide band current transformers Current Transformer Current Probe Current Transducer,
Current Toroid CT Current Sensor Pulse Current Monitor,
High Frequency Current Transformer


Whether you are interested in observing and measuring submilliamp currents in a charged particle beam or thousands of amps resulting from a fault in a major power feeder, you will find a Pearson current monitor to suit your needs. The use of our patented distributed termination technique permits pulse-current monitoring of rise times as short as two nanoseconds. Our current sensor devices of larger inner diameter make possible high voltage current measurement without the risk of voltage breakdown. Several of our current transformer models feature double shielding for greater noise immunity and increased safety in high voltage applications. All models are sealed and are suitable for use in high voltage insulating oil or under vacuum. They can be connected to oscilloscopes, spectrum analyzers, power analyzers, digital voltmeters, analog-to-digital convertors, and a variety of other measuring instruments.
 

 
Model
(click for spec)

Shape
(see below table)

Output
(volts/
amp)

HoleId.
(inches)

 

Time Domain Parameters

 

Frequency Domain Parameters

Max.
Peak
Curr.
(amps)

Droop
(%/msec.)

Useable Rise
Time
(nsec.)

IT Max.
(amp-sec.)

Max.
RMS
Curr.
(amps)

3dB pt.
Low

(Hz)

3dB
pt. High

(MHz)

I/f
(peak
amps
/Hz)

2877

F

1.0

0.25

 

100

200

2

0.0004**

 

2.5

300

200

0.0025

4100

E

1.0

0.5

 

500

90

10

0.002**

 

5

140

35

0.006

2100

D

1.0

2.0

 

500

80

20

0.005**

 

7.5

125

20

0.017

6585

K

1.0

2.0

 

500

300

1.5

0.002**

 

10

400

250

0.008

6656

J

1.0

3.5

 

500

140

3.5

0.01**

 

10

200

120

0.04

3100*

C

1.0

3.5

 

500

40

50

0.03**

 

12

40

7

0.1

150

D

0.5

2.0

 

1,000

20

20

0.02**

 

15

40

20

0.07

6595

K

0.5

2.0

 

1,000

100

2.5

0.008**

 

20

100

200

0.03

325*

C

0.25

3.5

 

2,000

100

30

0.09

 

60

160

10

0.6

2878

F

0.1

0.25

 

400

20

5

0.004**

 

10

30

70

0.025

410

E

0.1

0.5

 

5,000

60

20

0.25

 

50

120

20

1.7

411

E

0.1

0.5

 

5,000

0.9

20

0.2**

 

50

1

20

0.6

3972

I

0.1

1.0

 

5000

1

20

0.2

 

50

1

20

0.6

110

D

0.1

2.0

 

5,000

0.8

20

0.5**

 

65

1

20

1.5

110A†

D

0.1

2.0

 

10,000

0.8

20

0.5**

 

65

1

20

1.5

6600

K

0.1

2.0

 

2,000

15

5

0.04**

 

40

25

120

0.12

310*

C

0.1

3.5

 

5,000

20

40

0.6

 

140

40

10

3.6

1010*

A

0.1

10.75

 

5,000

250

50

0.7**

 

120

400

7

4.4

1025

D

0.025

2.0

 

20,000

100

100

0.5

 

100

160

4

3.0

3025*

C

0.025

3.5

 

20,000

4

100

3.0

 

325

7

4

20.0

2879

F

0.01

0.25

 

2,000

2

20

0.04**

 

25

3

20

0.25

5046

E

0.01

0.5

 

25,000

0.3

20

0.5**

 

100

0.5

20

3.0

101

D

0.01

2.0

 

50,000

0.1

100

2.5**

 

200

0.25

4

12.0

4997

D

0.01

2.0

 

20,000

0.3

25

1.0**

 

150

0.5

15

3.5

301X*

C

0.01

3.5

 

50,000

3

200

22.0

 

400

5

2

140.0

1080*†

C

0.005

3.5

 

200,000

2.0

250

25

 

750

3.0

1.5

150

1330*

C

0.005

3.5

 

100,000

1.0

250

65

 

1400

0.9

1.5

400

4418

D

0.001

2.0

 

200,000

0.05

200

6.0**

 

400

0.7

2

40

1423*

C

0.001

3.5

 

500,000

0.7

500

75

 

2500

1.0

1.2

450

2093*

B

0.001

4.75

 

500,000

0.09

2000

1200

 

2500

0.15

0.2

7500



     


Accuracy +1/-0% of initial pulse amplitude for all models, with a high impedance load such as 1 megohm in parallel with 20 pF. A 50 ohm termination will reduce the output to half.

     *     are double shielded and are recommended for high voltage or high noise environments. The entries labeled
     **   may need a small dc bias current through the secondary for maximum current-time rating.
     †    Type N Connector