CA Series
Current Transformers
PTH SMPS Current Transformer Up to 15A
Features
- Designed for switching power supply applications
- Transformer meets IEC950 insulation requirements
- Frequency range from 20 KHz to 200 KHz
- Material according to UL94-VO
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Product List
Part Number
Secondary Secondary Inductance
Turns
RS
Inductance
Test Voltatge
Ns
(Ω Max)
MH (Min)
(15.75 KHz)
RB
(Ω Nom)
Primary Unipolar
Amp µ Sec.
Rating (Max)
Primary Bipolar
Amp µ Sec.
Rating (Max)
CA-050X
50
7.7
0.5
0.55
50
150
300
CA-100X
100
30.9
1.0
1.2
100
300
600
CA-200X
200
123.6
2.0
3.5
200
600
1200
Notes:
- Maximum ratings specified with rated secondary terminating resistance and 1 turn primary.
- Amp-microsecond (AmSec.) rating of primary equals volt microsecond (VµSec.) rating of secondary when secondary is
terminated in rated resistance. (Amp-microseconds is equals to the product of a square pulse of current in amps, times the
current pulse width in microseconds).
- When terminated with rated terminating resistance, the inductor scale factor is Vout = 1 volt per amp. For center tapped units
terminating resistance for each half of winding is listed value divided by two.
- 1 turn primary peak sense current is 20 amps for all parts listed above.
Dimensions
Test Circuit and Schematics
266