RL-9740-4

Current Sense Transformers Overview

The RL-9740-4 is a through-hole current sense transformer manufactured by Renco Electronics, Inc. It features a turns ratio of 300:1 and supports a frequency range of 10kHz to 200kHz. The device has a primary current rating of 37 A and a secondary resistance of 11 Ohms. Its inductance is specified at 180 mH.

Current Sense Transformers Feature Summary

• Through-hole mounting configuration for PCB integration
• Current sensing capability with 300:1 turns ratio
• Operational frequency range from 10kHz to 200kHz

Current Sense Transformers Applications

• Current monitoring in power electronics
• Switching power supply feedback loops
• Inverter control systems

Current Sense Transformers Procurement Notes

Verify the specific part number RL-9740-4 against official Renco Electronics documentation to confirm electrical parameters such as the 37 A rating and 180 mH inductance. Ensure compatibility with the target application's frequency range of 10kHz to 200kHz before procurement.

Current Sense Transformers Selection Notes

Select this component when a through-hole current sensor with a 300:1 ratio is required for frequencies between 10kHz and 200kHz. Consider the 11 Ohm secondary resistance and 37 A primary current limit during circuit design to ensure proper signal conditioning and thermal management.

Current Sense Transformers Part Context

This component belongs to the RL-9740 series of current sense transformers from Renco Electronics. These devices are designed for high-frequency applications requiring isolated current measurement. The RL-9740-4 variant specifically offers a 300:1 ratio suitable for precise current monitoring in switching circuits.

Current Sense Transformers Replacement Considerations

Consult official Renco Electronics substitution guides for verified alternatives. Cross-reference key parameters including the 300:1 ratio, 10kHz-200kHz frequency range, and 180 mH inductance to ensure functional equivalence.