CR8450-2000-F

Overview

The CR8450-2000-F is a current sense transformer manufactured by CR Magnetics Inc., designed for non-invasive current monitoring applications. It features a solid core construction with a primary current rating of 100 A and a turns ratio of 2000:1. The device operates within a frequency range of 20 Hz to 200 kHz, making it suitable for high-frequency switching environments. Key electrical specifications include a DC resistance (DCR) of 63 Ohms and a maximum RMS voltage of 8.5 V. The component utilizes wire lead termination and is packaged in bulk.

Feature Summary

• Non-invasive solid core design allows for direct insertion of the primary conductor without circuit interruption.
• High-frequency bandwidth supports operation up to 200 kHz for modern switching power supplies.
• Wire lead termination facilitates straightforward integration into PCB-based control circuits.

Applications

• Current sensing in high-frequency switching power converters
• Motor drive protection and feedback loops
• Inverter and converter monitoring systems

Procurement Notes

Verify the specific suffix 'F' against the manufacturer's latest documentation to confirm compliance details such as RoHS status or lead-free plating requirements. Ensure the ordering part number matches the exact current rating and frequency range required for the target application. Cross-reference the distributor's stock information with the manufacturer's active product status to avoid obsolete components. Confirm that the wire lead type meets the mechanical constraints of the assembly process.

Selection Notes

Select this component when a non-invasive solution is required for currents up to 100 A in frequencies extending to 200 kHz. The 2000:1 ratio provides a low output current suitable for standard sensing resistors. Consider the 63 Ohm DCR impact on the secondary circuit loading. The solid core design necessitates physical access to the primary conductor for installation. Evaluate the 8.5 V RMS limit to ensure insulation safety margins are met in the specific operating environment.

Part Context

This model belongs to the CR8450 series of current sense transformers from CR Magnetics Inc. The series is characterized by its use in precision current monitoring where isolation and wide bandwidth are critical. The CR8450-2000-F specifically denotes the 2000:1 turns ratio variant, distinguishing it from other models in the family with different ratios or current ratings. It represents a specialized passive component for power electronics control loops.

Replacement Considerations

Direct substitutes may include other CR Magnetics models within the CR8450 series with compatible current ratings and frequency ranges. Verify that any alternative maintains the 2000:1 ratio and 63 Ohm DCR to preserve circuit performance. Check for equivalent non-invasive solid core designs from other manufacturers if supply constraints exist, ensuring mechanical dimensions and lead configurations are compatible.