603 current sense transformers

SMD Current Sense Transformer (603 Series)

West Coast Magnetics’ 603 series current sense transformers are an excellent choice for sensing current to 20 amps in a low profile SMD package. Designed for switching power supply applications, they will accommodate frequencies from 100 kHz to 1 MHz with excellent linearity. The product also provides 3000 Vac isolation between the current and sense windings for safety agency compliance.

Size CodeTurnsInductance min.(microhenries)DCR (mΩnom,sense)V out (Volts)I in (Amps)Terminating Resistor (Ω)Hypot Current to Sense
603-110781511103000 Vac
603-2161963811163000 Vac
603-3254809311253000 Vac
603-440122423511403000 Vac
603-510821111103000 Vac
603-6162102711163000 Vac
603-7253516811253000 Vac
603-840133017311403000 Vac
603-9101241411103000 Vac
603-10163173411163000 Vac
603-11258328411253000 Vac
603-1240198221511403000 Vac

 603schematic_sm


 

Size CodeLWHsdXY
603-1
603-2
603-3
603-4
.430/10.9.430/10.9.250/6.4.030/0.8.060/1.5.307/7.8.307/7.8
603-5
603-6
603-7
603-8
.530/13.5.530/13.5.290/7.4.030/0.8.060/1.5.400/10.2.400/10.2
603-9
603-10
603-11
603-12/
.630/16.0.630/16.0.310/7.9.030/0.8.070/1.8.495/12.6.495/12.6

 

Note: All materials of construction minimum Class B 130 degrees C rated.

Dimensions: Inches/mm

Peak Sense Current vs Frequency of Operation (Amps)

 

Size Code100kHz200kHz400kHz600kHz1 MHz
603-1NANA1096
603-2NA10101010
603-3NA10101010
603-410101010NA
603-5NANANANA9
603-6NANA151515
603-715151515NA
603-815151515NA
603-9NANANA1512
603-10NA20202020
603-1120202020NA
603-1220202020NA

Notes:

  1. Nominal 100% duty cycle current is approximately half peak value.
  2. For fully optimal performance, operate in recommended areas only. Within these ranges magnetizing current will be less than 1% of peak rated sense current and temperature rise will not exceed 40°C. Check with West Coast Magnetics for operation outside recommended areas.

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