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.