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RL-3420 Current Sense Transformer

The RL-3420 Current Sense Transformer series is engineered for precision AC current sensing in PCB-mounted applications. These encapsulated devices provide a non-intrusive method for monitoring or controlling current, eliminating DC power loss and preventing heating issues. Utilizing high-quality toroids, the RL-3420 ensures consistent performance across its designated frequency range. Its compact design and robust construction make it ideal for high-density, reliable installations.

  • Molded aperture for primary wire
  • Frequency range up to 100 kHz
  • Meets VDE safety specifications
  • PCB mounting capability
  • Encapsulated construction for durability
  • Maximum operating temperature: 105°C
  • Storage temperature range: -55°C to +130°C
  • Operating temperature range: -40°C to +130°C
  • Frequency range: Up to 100 kHz
  • Maximum dimensions: 17.02 mm x 12.70 mm x 9.91 mm
  • Weight: 5.0 g (0.18 oz)
  • Inductor scale factor: Vout = 1 Volt/Amp (with specified terminating resistance)

The RL-3420 transformer series is designed for current feedback in switch mode power supplies, enabling precise control and efficiency. It is well-suited for motor current load/overload detection and bidirectional current sensing with bridge rectifiers. Additional uses include high-resolution sonar systems and specialized current monitoring applications.

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