FIS111NL

Current Sense Transformers Overview

The FIS111NL is a board-mount current sensing transformer manufactured by Pulse Electronics. It features a radial end termination and PCB mount installation style. Key electrical parameters include an inductance of 22 mH, a primary-to-secondary turns ratio of 1:100, and a secondary DC resistance of 1.3 ohms. The component supports a maximum primary current of 15 A and operates within a frequency range up to 200 kHz. Physical dimensions are 17.2 mm in length, 9.53 mm in width, and 20.4 mm in height. It functions with an ET constant of 350 Vµs and withstands 2500 VAC isolation. The operating temperature range spans from -40°C to +125°C.

Current Sense Transformers Feature Summary

• Non-invasive solid core design for current monitoring
• High voltage isolation capability of 2500 VAC
• Radial through-hole mounting configuration

Current Sense Transformers Applications

• Current sense indication circuits
• Power supply feedback loops
• Overcurrent protection systems

Current Sense Transformers Procurement Notes

Verify the specific suffix against official documentation, as variations may exist between standard and non-RoHS compliant versions. Confirm that the required insulation class and thermal rating align with the target application's safety standards. Check for any recent product change notifications regarding material composition or manufacturing location updates. Ensure the selected variant meets all regulatory requirements for the intended market.

Current Sense Transformers Selection Notes

Select this component when a high isolation voltage and robust thermal performance are required for current monitoring. The 1:100 turns ratio provides a scaled output suitable for sensing applications. Consider the 22 mH inductance value for circuit stability at the target switching frequencies. Verify that the physical footprint fits the available PCB space and that the through-hole pins match the board layout.

Current Sense Transformers Part Context

This part belongs to the current sensing transformer category from Pulse Electronics. It is designed for board-mounted applications requiring reliable current measurement. The FIS111 series offers various configurations for different current levels and isolation requirements. This specific model emphasizes high-temperature operation and significant voltage isolation capabilities.

Current Sense Transformers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for direct replacements.