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Current Sense Transformers

 

THRU HOLE CURRENT SENSE TRANSFORMERS:

PICO ELECTRONICS, Inc. has developed a new series of Current Sense Transformers. This new 38000 Series of transformers come in three different sizes in both thru hole and surface mount packages.
The CURRENT SENSE TRANSFORMER is used for monitoring and controliing circuits as well as detecting changing loads in Power Supplies. These devices are used in a variety of applications which includes automotive, industrial, medical, and aerospace applications.
Because of the advantages of sensing the current while maintaining the electrical isolation, these devices are suitable in designing power supplies. Compared to different techniques or current measurement, the Current Sense Transformers offer higher efficiency, accuracy and are less sensitive to temperature shifts.
 

Specifications

  • MIL-PRF-27:ALL UNITS MANUFACTURED TO MIL-PRF-27, Grade 5, Class S
  • OPERATING TEMPERATURE: -55º C to +130º C 
  • DIELECTRIC WITHSTANDING VOLTAGE: 500Vac 
  • INSULATION RESISTANCE: 10K MegaOhms at 500 V DC 
  • FREQUENCY RANGE:50KHz to 500 KHz
  • CURRENT RATING: 5 to 20 Amps 
  • TURNS RATIO: from 1:30 up to 1:100 

Schematic for Current Sense Transformer

 

THRU HOLE
PART
NUMBER
SECONDARY
INDUCTANCE
(Minimum)
(mH)
PRIMARY
CURRENT
(Amps)
TURNS
RATIO
SECONDARY
DC RESISTANCE
(Ohms)
SIZE PRICE
(1-9)
(USD)

38500
38505
38510
38515
38520
38525

0.49
0.87
1.36
1.95
2.66
5.40
5
5
5
5
5
5
1:30
1:40
1:50
1:60
1:70
1:100
0.137
0.280
0.440
0.670
1.230
3.550
1
1
1
1
1
1
46.19
46.19
46.19
46.19
46.19
46.19
38600
38605
38610
38615
38620
38625
1.62
2.90
4.50
6.50
8.82
18.0
15
15
15
15
15
15
1:30
1:40
1:50
1:60
1:70
1:100
0.027
0.150
0.300
0.440
0.830
2.150
2
2
2
2
2
2
46.19
46.19
46.19
46.19
46.19
46.19
38700
38705
38710
38715
38720
38725
2.40
4.27
6.67
9.60
13.07
26.66
20
20
20
20
20
20
1:30
1:40
1:50
1:60
1:70
1:100
0.055
0.082
0.160
0.300
0.440
1.230
3
3
3
3
3
3
50.79
50.79
50.79
50.79
50.79
50.79
**Discount Prices: 
  • 1-9 Net;
    10-24 less 10%;
    25-49 less 16%; 
    50-99 less 23%;
    100-499 less 30% 

 

Mechanical Drawing

SIZE HEIGHT A B C D E
1 0.170
(4.32)

0.380
(9.65)

0.280
(7.11)

0.280
(7.11)

0.020
(0.51)

0.240
(6.1)

2 0.250
(6.35)
0.550
(13.97)
0.400
(10.16)
0.400
(10.16)
0.020
(0.51)
0.240
(6.1)
3 0.330
(8.38)
0.650
(16.51)
0.500
(12.7)
0.500
(12.7)
0.025
(0.64)
0.240
(6.1)

Dimensions are in inches. ( ) = millimeters

 

 

Ordering Instructions: 
  • No minimum. 
    Net 30 days F.O.B. Pelham, NY

    Delivery--stock to one week.

For immediate engineering assistance or to place an order:
Call Toll Free: 800-431-1064

PICO Electronics, Inc.

143 Sparks Ave. Pelham, NY 10803-1810
Tel: 914-738-1400 or Fax: 914-738-8225

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