CR8349-2000-F

Overview

The CR8349-2000-F is a current sense transformer from the CR8300 series, manufactured by CR Magnetics Inc. It features a non-invasive solid core design with a 75 A rated current and a 2000:1 turns ratio. The device operates within a frequency range of 20Hz to 200kHz and has a secondary DC resistance of 109 Ohms. It utilizes through-hole mounting with PC pin termination. Physical dimensions are 1.024 inches in length, 0.670 inches in width, and 1.102 inches in maximum height.

Feature Summary

• Non-invasive solid core construction for direct conductor insertion
• High-frequency operation capability up to 200kHz
• Through-hole PC pin termination for PCB integration

Applications

• Current sensing in power electronics circuits
• Motor drive control systems
• Inverter feedback loops

Procurement Notes

Verify the specific suffix 'F' against the manufacturer's official datasheet to confirm it denotes the correct winding configuration or tolerance variant. Ensure the ordering part number matches the exact 2000:1 ratio requirement. Cross-reference the package outline drawing to confirm compatibility with the target PCB footprint and hole spacing before finalizing procurement orders.

Selection Notes

Select this component when high-frequency response up to 200kHz is required for accurate current monitoring. The 75A rating suits moderate power applications. Verify that the 109 Ohm secondary impedance aligns with the burden resistor requirements of the downstream signal conditioning circuitry. Ensure the through-hole form factor fits the mechanical constraints of the assembly.

Part Context

This part belongs to the CR8300 series of vertical PCB current transformers. The series offers various current ratings and ratios. The CR8349-2000-F specifically targets applications requiring higher frequency bandwidth compared to lower-frequency variants in the same family, providing precise isolation between primary conductors and secondary sensing circuits.

Replacement Considerations

Direct substitutes include other CR8300 series models with matching 2000:1 ratios and similar physical footprints, such as CR8349-1000-N if frequency requirements allow. Verify that any replacement maintains the 109 Ohm DCR and 200kHz upper frequency limit to ensure circuit performance parity.