SMT CURRENT SENSE TRANSFORMERS PA0368 Series Height: 3.3mm Max Footprint: 8.4mm x 8.4mm Max Current Rating: up to 4A Frequency Range: 50kHz to 1MHz Electrical Specifications @ 25C -- Operating Temperature -40C to 130C Part number Turns ratio Current Rating 1 Secondary Inductance (mH MIN) PA0368.050 1:50 4 1.7 4 900 500 PA0368.070 1:70 4 3.3 4 1200 500 PA0368.080 1:80 4 4.3 4 1400 500 PA0368.100 PA0368.125 1:100 1:125 4 4 6.7 10.4 4 4 1600 1900 500 500 NOTES: 1. The maximum current rating is based on temperature rise of the component and represents the dc current which will cause a typical temperature rise of 40C with no airflow. 2. To calculate the value of the terminating resistor (Rt) use the following formula: Rt () = Vref * N / (Ipeak primary) DCR (m MAX) Primary 3. The peak flux density of the device must remain below 2000 Gauss. To calculate the peak flux density for a uni-polar current, use the following formula: Bpk = 64.9 * Vref * (Duty Cycle Max) * 10 5 / (N * Freq kHz) *for bi-polar current applications divide Bpk as calculated above by 2). 4. Add "T" suffix to the part number for Tape & Reel packaging, (i.e. PA0368.050T) Mechanical .330 MAX 8,38 2 .330 MAX 8,38 3 2 1 1T .236 6,00 Date Code Cntry of Origin .236 6,00 Schematic 1 PA0368.XXX Hipot (Vrms) Secondary 3 4 Iprimary 4 Isecondary 1 .130 MAX 3,30 N RT Vref APPLICATION CIRCUIT .006/0,15 4 SURFACES Dimensions: Inches mm Unless otherwise specified, all tolerances are .010 0,25 Weight . . . . . . . . . . . . . .0.3 grams Tape & Reel . . . . . . . . . . .1100/reel US 858 674 8100 * UK 44 1483 401 700 * France 33 3 84 35 04 04 * Singapore 65 6287 8998 * Taiwan 886 2 2698 0228 * Hong Kong 852 2788 6588 * http://www.pulseeng.com 53 PC500.C (3/03)