Coilcraft T6522 Surface Mount Current Sense Transformer
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Surface Mount, High Frequency
Current Sense Transformer

  • For use at 50 kHz – 300 kHz
  • Small surface mount package
  • 1 Volt per Ampere sensitivity (sensed current windings in parallel)
  • Output sensitivity is doubled by connecting sensed current windings in series
  • 500 Vrms primary to secondary isolation
  • RoHS compliant. 260°C compatible. Tin-silver-copper over silver-palladium-platinum-glass frit terminations


Part number1
Click for samples
Turns (N)2
pri : sec
DCR max4
Iin max
RT for
1 Vout
from 1 A Iin6
1,2 – 5,6 3 – 4
T6522-AL_ 1 : 50 3.4 0.006 0.700 50 – 300 3 Arms 30 50 Ohms
1 When ordering, please specify packaging code: e.g. T6522-ALD


D = 13" reel, machine-ready 
EIA-481 embossed plastic tape (750 parts per full reel).
B = Less than full reel
In tape, but not machine-ready. To have a leader and trailer added ($25 charge), use code letter D instead.
2 The two primary windings may be connected in parallel (1 : 50) to provide up to 3 A (Iin) sensing capability (3 Vout), or connected in series (2 : 50) to provide twice the sensitivity (1 A Iin yields 2 Vout).
3 Inductance is for the secondary, measured at 100 kHz, 0.1 Vrms.
4 DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
5 Maximum volt-time product for the secondary.
6 Varying terminating resistance increases or decreases output Voltage/Ampere according to the following equation: RT (Ohms) = Vout × Nsec / Iin.
7 Ambient temperature range: −40°C to +85°C
8 Storage temperature range: Component: −40°C to +85°C
Tape and reel packaging: −40°C to +80°C
9 Electrical specifications at 25°C
Refer to Soldering Coilcraft Components before soldering.
PCB washing: Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

Your comments and suggestions are welcome. Contact [email protected]
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Updated: April 16, 2018