Current Sense Transformers CST206-3A 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 over the frequency range of 20 kHz-200 kHz. Electrical Specifications (@25C) ET VµSEC Turns Min. DCR Max. Ω Pri. Amps REF 20kHz Count Ind. mH 6000 300 130.0 12.40 70.0 RMS Safety: These current sense transformers are constructed of UL rated 130°C materials. Dimensions: A B C D E F G H Min Max Ref Ref Ref Max Max Dia. Pins A B .360 1.225 .700 .127 .500 .400 1.075 .045 C Units: In inches D Technical Notes: 1. Derate ET product by 32% for 50 kHz, 52% for 100 kHz and 50% for unidirectional operation. E 2. Rated primary current renders approximately 40°C temp. rise. 3. Maximum recommended terminating resistance of 1 ohm per turn. 4. Primary is inserted through hole in casting. F CL G H PIN 1 TEST CONDUCTOR 1. START OF TEST CONDUCTOR TO HAVE ST FN THE SAME POLARITY AS PIN 1 2. DECAL ARROW ON CASE TO INDICATE POLARITY 1 ARROW POLARITY DETAIL TOP VIEW RoHS Compliance: As of manufacturing date February 2005, all standard products meet the requirements of 2011/65/EU, known as the RoHS initiative. *Upon printing, this document is considered “uncontrolled”. Please contact Triad Magnetics website for the most current version. For soldering and washing information please see http://www.triadmagnetics.com/faq.html Web: www.TriadMagnetics.com Phone 951-277-0757 460 Harley Knox Blvd. Publish Date: June 8, 2016 Fax 951-277-2757 Perris, California 92571

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