13 | current sense transformers / high frequency www.triadmagnetics.com | 22520 b temescal canyon road, corona, ca 92883 | phone 951-277-0757 | fax 951-277-2757 current sense transformers high frequency section/ type et vsec tuurns min. figure no. ref 20 khz count ind. mh dcr max. ohms pri. amps a cst206-1a 2000 100 14.0 .580 110.0 rms b cst206-1t 2000 100 ct 14.0 .580 110.0 rms a cst206-2a 4000 200 56.0 3.500 80.0 rms b cst206-2t 4000 200 ct 56.0 3.500 80.0 rms a cst206-3a 6000 300 130.0 12.400 70.0 rms b cst206-3t 6000 300 ct 130.0 12.400 70.0 rms b cst306-1a 500 50 3.5 .340 35.0 rms a cst306-1t 500 50 ct 3.5 .580 35.0 rms b cst306-2a 1000 100 14.0 1.550 25.0 rms a cst306-2t 1000 100 ct 14.0 1.550 25.0 rms b cst306-3a 2000 200 55.0 3.750 25.0 rms a CST306-3T 2000 200 ct 55.0 3.750 25.0 rms :: outline dimensions :: cst206/306 description designed for switching power supply applications, triad current sense transformers are used to detect the current passing through a conductor. these transformers are very reliable and operate effectively over the frequency range of 20 khz-200 khz. they are constructed of ul rated 130oc materials. both models are available with a center tap option. :: cse5 description designed to monitor current at 250 khz and above. these transformers have a primary current rating of 10 amps. figure a figure b turns secondary secondary part n1:n2 inductance dcr no. @ 10khz h min. m 1 max cse5-100201 1:20 80 550 cse5-100301 1:30 180 870 cse5-100401 1:40 320 1140 cse5-100501 1:50 500 1500 cse5-100601 1:60 720 1750 cse5-100701 1:70 980 4750 cse5-101001 1:100 2000 5500 cse5-101251 1:125 3000 8500 technical notes {mm} technical notes 1. derate et product by 32% for 50 khz, 52% for 100 hz and 50% for unidirectional operation. 2. rated primary current renders approximat ely 40oc temperature rise. :: outline dimensions 3. cst206 models have maximum recommended terminating resistance of 1 ohm per turn. 4. primary is inserted through hole in casing. 5. 3 pin or center tapped (ct) models are designed with a t suffix.
14 | current sense transformers / low frequency www.triadmagnetics.com | 22520 b temescal canyon road, corona, ca 92883 | phone 951-277-0757 | fax 951-277-2757 technical notes 1. turns ratio: primary to sense 1:500 2. suggested burden resistor: 60 ohms. 3. typical ouput: 110 mv /amp. :: outline dimensions :: cse187l description designed to monitor current in low frequency applications. this triad part may be used to monitor current from .1 to 30 ampheres at frequencies from 50 hz to 400 hz. current sense transformers low frequency :: cst series description triad current sense transformers are used to detect the current passing through a conductor. these transformers are very reliable and operate effectively between 50-60 hz. they are constructed of ul rated 130oc materials. :: outline dimensions 4. primary dcr: 250 ohms maximum. 5. sense dcr: 21 ohms maximum. 6. constructed with ul recognized materials (class b, 130oc). 7. hi-pot: 2,500 volts wdg-wdg. 8. potted version available with a dielectric strength of 4,000 volts wdg-wdg. cse187l performance graph 0.1 0.5 1 2 5 7 10 15 20 30 100% 90% 80% 70% 60% primary current - ac amps 400 hz 60 hz 50 hz technical notes 1. pin length: 5 1mm 2. pin diameter: 0.8 0.1mm 3. pin 3 normally for mechanical support only class b ul file: e205349 cst-1005 5 1000:1 100 0.0025 40.00 0.0958 0.4490 1.3694 1.8402 20.0 23.50 24.80 12.00 15.00 7.50 8.50 cst-1010 10 1000:1 100 0.0100 40.00 0.0969 0.4565 0.9686 1.1912 20.0 23.50 24.80 12.00 15.00 7.50 8.50 cst-1015 15 1000:1 100 0.0230 40.00 0.0971 0.4429 0.7508 0.9439 20.0 23.50 24.80 12.00 15.00 7.50 8.50 cst-1020 20 1000:1 100 0.0400 40.00 0.0977 0.3943 0.6174 0.7662 20.0 23.50 24.80 12.00 12.00 7.50 8.50 cst-1025 25 1000:1 100 0.0630 46.00 0.0976 0.4364 0.7496 0.9664 30.0 30.20 30.20 14.30 20.32 10.16 11.40 cst-1030 30 1000:1 100 0.0900 46.00 0.0977 0.4160 0.6710 0.8750 30.0 30.20 30.20 14.30 20.32 10.16 11.40 ip amps part no. turns ratio ohms terminating resistor watt dcr (ohms) nominal volts/amp @ rated lp for various loads 100 500 2k 5k net weight (grams) ref case dimensions C mm abcdef ip: primary current :: specifications
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