Current Sense Transformers

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Frequency Range	Type	Current Rating (Amps)	Inductance	ET (Volt-Time)	Turns Ratio - Primary:Secondary	Current Ratio	DC Resistance (DCR)	Ratings	Mounting Type	Size / Dimension	Height - Seated (Max)	Termination Style

CST306-3A CURR SENSE XFMR 25A T/H Triad Magnetics	5,072 In Stock 4,509 Factory	1 : ¥57.57000 Bulk	CST	Bulk	Active	20kHz ~ 200kHz	Non-Invasive (Solid Core)	25 A	55 mH	2000VµS	-	200:1	3.75Ohm Max	-	Through Hole	0.690" L x 0.385" W (17.53mm x 9.78mm)	0.915" (23.24mm)	PC Pin
CST306-2A CURR SENSE XFMR 25A T/H Triad Magnetics	4,123 In Stock	1 : ¥57.57000 Bulk	CST	Bulk	Active	20kHz ~ 200kHz	Non-Invasive (Solid Core)	25 A	14 mH	1000VµS	-	100:1	1.55Ohm Max	-	Through Hole	0.690" L x 0.385" W (17.53mm x 9.78mm)	0.915" (23.24mm)	PC Pin
CST306-1A CURR SENSE XFMR 35A T/H Triad Magnetics	3,753 In Stock 1,294 Factory	1 : ¥57.57000 Bulk	CST	Bulk	Active	20kHz ~ 200kHz	Non-Invasive (Solid Core)	35 A	3.5 mH	500VµS	-	50:1	340mOhm Max	-	Through Hole	0.690" L x 0.385" W (17.53mm x 9.78mm)	0.915" (23.24mm)	PC Pin
CST306-3T CURR SENSE XFMR 25A T/H Triad Magnetics	540 In Stock	1 : ¥57.57000 Bulk	CST	Bulk	Active	20kHz ~ 200kHz	Non-Invasive (Solid Core)	25 A	55 mH	2000VµS	-	200CT:1	3.75Ohm Max	-	Through Hole	0.690" L x 0.385" W (17.53mm x 9.78mm)	0.915" (23.24mm)	PC Pin
CST-1020 CURR SENSE XFMR 20A T/H Triad Magnetics	5,057 In Stock	1 : ¥69.47000 Bulk	CST	Bulk	Active	50/60Hz	Non-Invasive (Solid Core)	20 A	-	-	-	1000:1	40Ohm	-	Through Hole	0.925" L x 0.472" W (23.50mm x 12.00mm)	0.976" (24.80mm)	PC Pin
CST206-1A CURR SENSE XFMR 110A T/H Triad Magnetics	5,827 In Stock 593 Factory	1 : ¥70.43000 Bulk	CST	Bulk	Active	20kHz ~ 200kHz	Non-Invasive (Solid Core)	110 A	14 mH	2000VµS	-	100:1	580mOhm Max	-	Through Hole	1.075" L x 0.400" W (27.31mm x 10.16mm)	1.225" (31.12mm)	PC Pin
CST206-3A CURR SENSE XFMR 70A T/H Triad Magnetics	1,795 In Stock	1 : ¥70.43000 Bulk	CST	Bulk	Active	20kHz ~ 200kHz	Non-Invasive (Solid Core)	70 A	130 mH	6000VµS	-	300:1	12.4Ohm Max	-	Through Hole	1.075" L x 0.400" W (27.31mm x 10.16mm)	1.225" (31.12mm)	PC Pin
CST206-2A CURR SENSE XFMR 80A T/H Triad Magnetics	1,497 In Stock	1 : ¥70.43000 Bulk	CST	Bulk	Active	20kHz ~ 200kHz	Non-Invasive (Solid Core)	80 A	56 mH	4000VµS	-	200:1	3.5Ohm Max	-	Through Hole	1.075" L x 0.400" W (27.31mm x 10.16mm)	1.225" (31.12mm)	PC Pin
CST-1030 CURR SENSE XFMR 30A T/H Triad Magnetics	3,003 In Stock 2,270 Factory	1 : ¥88.55000 Bulk	CST	Bulk	Active	50/60Hz	Non-Invasive (Solid Core)	30 A	-	-	-	1000:1	46Ohm	-	Through Hole	1.189" L x 0.563" W (30.20mm x 14.30mm)	1.189" (30.20mm)	PC Pin
CST25-0100 CURR SENSE XFMR 1:100 25A TH Triad Magnetics	323 In Stock	1 : ¥21.78000 Tube	CST	Tube	Active	50kHz ~ 500kHz	Invasive	25 A	18 mH	350VµS	1:100	-	2Ohm	-	Through Hole	0.669" L x 0.591" W (17.00mm x 15.00mm)	0.472" (12.00mm)	PC Pin
CST-1005 CURR SENSE XFMR 5A T/H Triad Magnetics	2,040 In Stock 1,598 Factory	1 : ¥55.72000 Bulk	CST	Bulk	Active	50/60Hz	Non-Invasive (Solid Core)	5 A	-	-	-	1000:1	40Ohm	-	Through Hole	0.925" L x 0.472" W (23.50mm x 12.00mm)	0.976" (24.80mm)	PC Pin
CST206-1T CURR SENSE XFMR 110A T/H Triad Magnetics	1,876 In Stock 1,034 Factory	1 : ¥56.50000 Bulk	CST	Bulk	Active	20kHz ~ 200kHz	Non-Invasive (Solid Core)	110 A	14 mH	2000VµS	-	100:1	580mOhm Max	-	Through Hole	1.075" L x 0.400" W (27.31mm x 10.16mm)	1.225" (31.12mm)	PC Pin
CST206-3T CURR SENSE XFMR 70A T/H Triad Magnetics	215 In Stock	1 : ¥56.50000 Bulk	CST	Bulk	Active	20kHz ~ 200kHz	Non-Invasive (Solid Core)	70 A	130 mH	6000VµS	-	300:1	12.4Ohm Max	-	Through Hole	1.075" L x 0.400" W (27.31mm x 10.16mm)	1.225" (31.12mm)	PC Pin
CST-1025 CURR SENSE XFMR 25A T/H Triad Magnetics	700 In Stock 560 Factory	1 : ¥70.98000 Bulk	CST	Bulk	Active	50/60Hz	Non-Invasive (Solid Core)	25 A	-	-	-	1000:1	46Ohm	-	Through Hole	1.189" L x 0.563" W (30.20mm x 14.30mm)	1.189" (30.20mm)	PC Pin
CST25-0050 CURR SENSE XFMR 1:50 500MA TH Triad Magnetics	118 In Stock	1 : ¥21.09000 Bulk	CST	Bulk	Active	50kHz ~ 500kHz	Invasive	500 mA	4.7 mH	175VµS	1:50	-	500mOhm	-	Through Hole	0.669" L x 0.591" W (17.00mm x 15.00mm)	0.472" (12.00mm)	PC Pin
CST25-0200 CURR SENSE XFMR 1:120 125MA TH Triad Magnetics	228 In Stock	1 : ¥22.46000 Bulk	CST	Bulk	Active	50kHz ~ 500kHz	Invasive	25 A	76 mH	700VµS	1:200	-	4.5Ohm	-	Through Hole	0.669" L x 0.591" W (17.00mm x 15.00mm)	0.472" (12.00mm)	PC Pin
CST306-1T CURR SENSE XFMR 35A T/H Triad Magnetics	309 In Stock	1 : ¥46.12000 Bulk	CST	Bulk	Active	20kHz ~ 200kHz	Non-Invasive (Solid Core)	35 A	3.5 mH	500VµS	-	50CT:1	340mOhm Max	-	Through Hole	0.690" L x 0.385" W (17.53mm x 9.78mm)	0.915" (23.24mm)	PC Pin
CST-1010 CURR SENSE XFMR 10A TH Triad Magnetics	202 In Stock 684 Factory	1 : ¥55.72000 Bulk	CST	Bulk	Active	50/60Hz	Non-Invasive (Solid Core)	10 A	-	-	-	1000:1	40Ohm	-	Through Hole	0.925" L x 0.472" W (23.50mm x 12.00mm)	0.976" (24.80mm)	PC Pin
CST306-2T CURR SENSE XFMR 25A T/H Triad Magnetics	1 In Stock 166 Factory	1 : ¥46.12000 Bulk	CST	Bulk	Active	20kHz ~ 200kHz	Non-Invasive (Solid Core)	25 A	14 mH	1000VµS	-	100CT:1	1.55Ohm Max	-	Through Hole	0.690" L x 0.385" W (17.53mm x 9.78mm)	0.915" (23.24mm)	PC Pin
CST25-0500 CURR SENSE XFMR 1:500 25A TH Triad Magnetics	0 In Stock Check Lead Time	25 : ¥14.64240 Tube	CST	Tube	Active	50kHz ~ 500kHz	Invasive	25 A	470 mH	1750VµS	1:500	-	16Ohm	-	Through Hole	0.669" L x 0.591" W (17.00mm x 15.00mm)	0.472" (12.00mm)	PC Pin
CST306-1A-B CURR SENSE XFMR 35A T/H Triad Magnetics	0 In Stock 2,880 Factory Check Lead Time	720 : ¥27.69636 Bulk	CST	Bulk	Active	20kHz ~ 200kHz	Non-Invasive (Solid Core)	35 A	3.5 mH	500VµS	-	50:1	340mOhm Max	-	Through Hole	0.690" L x 0.385" W (17.53mm x 9.78mm)	0.915" (23.24mm)	PC Pin
CST306-1T-B CURR SENSE XFMR 35A T/H Triad Magnetics	0 In Stock 720 Factory Check Lead Time	720 : ¥27.69636 Bulk	CST	Bulk	Active	20kHz ~ 200kHz	Non-Invasive (Solid Core)	35 A	3.5 mH	500VµS	-	50CT:1	340mOhm Max	-	Through Hole	0.690" L x 0.385" W (17.53mm x 9.78mm)	0.915" (23.24mm)	PC Pin
CST306-2T-B CURR SENSE XFMR 25A T/H Triad Magnetics	0 In Stock 720 Factory Check Lead Time	720 : ¥27.69636 Bulk	CST	Bulk	Active	20kHz ~ 200kHz	Non-Invasive (Solid Core)	25 A	14 mH	1000VµS	-	100CT:1	1.55Ohm Max	-	Through Hole	0.690" L x 0.385" W (17.53mm x 9.78mm)	0.915" (23.24mm)	PC Pin
CST306-3A-B CURR SENSE XFMR 25A T/H Triad Magnetics	0 In Stock 720 Factory Check Lead Time	720 : ¥27.69636 Bulk	CST	Bulk	Active	20kHz ~ 200kHz	Non-Invasive (Solid Core)	25 A	55 mH	2000VµS	-	200:1	3.75Ohm Max	-	Through Hole	0.690" L x 0.385" W (17.53mm x 9.78mm)	0.915" (23.24mm)	PC Pin
CST306-3T-B CURR SENSE XFMR 25A T/H Triad Magnetics	0 In Stock 720 Factory Check Lead Time	720 : ¥27.69636 Bulk	CST	Bulk	Active	20kHz ~ 200kHz	Non-Invasive (Solid Core)	25 A	55 mH	2000VµS	-	200CT:1	3.75Ohm Max	-	Through Hole	0.690" L x 0.385" W (17.53mm x 9.78mm)	0.915" (23.24mm)	PC Pin

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Current Sense Transformers

Current Sense Transformers are designed to detect and measure current flow in an isolated conductor or a primary winding and produce a proportional alternating current in a secondary winding. The frequency range is 2 Hz to 1 MHz with a current rating of 125 mA to 4000 A. The three types are Invasive, Non-Invasive (Solid Core), and Non-Invasive (Split Core).

Current Sense Transformers

Current Sense Transformers

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