55664

Overview

The Bourns Inc. model 55664 is a current sense transformer designed for through-hole mounting. It operates within a frequency range of 200 kHz to 3 MHz. The component features a primary resistance of 1.8 Ohms and an inductance of 12.4 mH. This device is engineered for high-frequency signal sensing applications, providing isolation and accurate current measurement in power conversion circuits.

Feature Summary

• Provides galvanic isolation between primary and secondary circuits
• Optimized for high-frequency current sensing operations
• Designed for reliable performance in switching power supply environments

Applications

• Current sensing in switch-mode power supplies
• Isolated feedback loops in DC-DC converters
• High-frequency power monitoring systems

Procurement Notes

Verify the specific manufacturer part number against official Bourns documentation to ensure authenticity. Confirm that the through-hole package type matches your board layout requirements. Check for any specific handling instructions regarding magnetic sensitivity during assembly. Ensure the supplier provides traceable origin data consistent with Bourns manufacturing standards.

Selection Notes

Select this component when isolated current sensing is required at frequencies between 200 kHz and 3 MHz. Consider the 1.8 Ohm resistance and 12.4 mH inductance values for circuit compatibility. Evaluate the through-hole mounting style against available PCB space. Compare performance characteristics with alternative transformers if higher or lower frequency ranges are needed.

Part Context

This current sense transformer belongs to Bourns' portfolio of magnetic components used in power electronics. It complements other circuit protection and sensing solutions offered by the manufacturer. The product supports designs requiring robust isolation and precise current monitoring in demanding electrical environments.

Replacement Considerations

Consult official Bourns substitution guides for verified equivalent models. Cross-reference technical specifications such as operating frequency, inductance, and resistance before adopting alternatives. Ensure any substitute maintains the required isolation voltage and through-hole form factor.