RL-9740-1

Current Sense Transformers Overview

The RL-9740-1 is a through-hole current sense transformer manufactured by Renco Electronics, Inc. It features a 50:1 turns ratio and operates within a frequency range of 10kHz to 200kHz. The component has a secondary DC resistance of 700mOhm and an inductance of 5 mH. Designed for invasive current sensing applications, it utilizes bulk packaging and is currently listed as an active part.

Current Sense Transformers Feature Summary

• Invasive current sensing capability via transformer coupling
• Through-hole mounting configuration for PCB integration
• Operational frequency range from 10kHz to 200kHz

Current Sense Transformers Applications

• Current monitoring in switching power supplies
• Overcurrent protection circuits
• Feedback loop sensing in AC/DC converters

Current Sense Transformers Procurement Notes

Verify the specific package dimensions and pinout configuration against your PCB footprint requirements before ordering. Confirm that the operating frequency range of 10kHz to 200kHz aligns with your system's switching speed. Ensure the invasive nature of the sensor fits your circuit topology constraints.

Current Sense Transformers Selection Notes

Select this component when a high isolation barrier is required between the primary current path and the sensing circuitry. The 50:1 ratio provides significant signal attenuation suitable for low-current detection. Consider the 5 mH inductance value for its impact on low-frequency response and saturation characteristics in your specific application design.

Current Sense Transformers Part Context

This device belongs to the RL-9740 series of current sense transformers from Renco Electronics. These components are designed for precise current measurement in electronic power systems. The series offers various ratios and inductance values to suit different sensing requirements across multiple industrial and consumer electronics applications.

Current Sense Transformers Replacement Considerations

Direct substitutes must match the 50:1 ratio, 5 mH inductance, and 10kHz-200kHz frequency range. Verify mechanical compatibility for through-hole mounting. Check secondary resistance specifications to ensure signal integrity remains consistent with the original design parameters.