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 0QFSBUJOHUFNQFSBUVSFGSPN$UP$ 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