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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



    Larger size schematic

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

    38100
    38105
    38110
    38115
    38120
    38125

    		 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    		 58.12
    58.12
    58.12
    58.12
    58.12
    58.12
    38200
    38205
    38210
    38215
    38220
    38225    		 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    		 58.12
    58.12
    58.12
    58.12
    58.12
    58.12
    38300
    38305
    38310
    38315
    38320
    38325    		 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    		 63.91
    63.91
    63.91
    63.91
    63.91
    63.91
    **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--Sample orders typically ship within two weeks.

                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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