document 131 specifications subject to change without notice. document 131 revised 02/24/03 current sensors - d18xx, cs1xxx series designed for use at 20 khz to 50 khz and higher, these sensors function as the secondaries of a current trans- former. the conductor carrying the current to be mea- sured is the ?one turn primary.? sensitivity can be set at 1 volt per ampere or at other desired values. it can also be doubled by looping the conductor through the hole twice. applications include sensing branch circuit overload, switcher feedback, and detecting load drop or shutdown. they come in a molded version (cs1xxx series) or lower cost encapsulated model (d18xx series). mini- mum wall thickness of the hole is 0.5 mm that meets iec380, vde 0730 and other requirements when used with an insulated conductor. coilcraft designer?s kit p203 contains samples of the cs1050, 1100 and 1200 sensors, current transformer versions with equivalent ratings, plus two 50/60 hz current sensors. to order, contact coilcraft. sensed sensitivity terminating part inductance current vout i in resistor color number turns (mh) max (a) (v) (a) r t (ohms)* code d1869 50 5 10 1 1 50 green d1870 100 20 24 1 1 100 brown d1871 200 100 35 1 1 200 red cs1050 50 5 10 1 1 50 CS1100 100 20 24 1 1 100 cs1200 200 100 35 1 1 200 cs1750 750 1125 30 1 1 750 * varying terminating resistance will increase or decrease output voltage/ampere in conductor. effect is essentially linear over a restricted operating range. frequency response is also affected by varying terminating resistance. d1xx series leads 3 and a are in phase per orientation shown above. 0.75 19,05 0.20 5,08 0.033 0.002 0,84 0,05 0.50 0.015 12,7 0,38 0.80 20,30 max min 1 3 3 date code color code max 0.465 11,81 0.125 3,175 0.45 11,43 0.34 8,64 max a max max max b 0.80 20,3 0.20 5.08 max max 0.70 17,8 max 0.50 0.015 12,7 0,38 1 3 3 a b 0.158/0.218 5,54 4,01/ 0.036/0.030 0,91/0,76 0.375 9,53 max cs1xxx series 1 ab i r t 3 test circuit v p-p out
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