RL-3420

Current Sense Transformers Overview

The RL-3420 is a current sense transformer manufactured by Renco Electronics, Inc. It features a 1:100 turns ratio and operates within a frequency range of 5kHz to 50kHz. The component has an inductance of 20 mH and a primary resistance of 1.4 Ohms. Designed for through-hole mounting, it serves as a nonintrusive method for controlling, monitoring, or protecting circuits via PC board integration.

Current Sense Transformers Feature Summary

• Encapsulated construction designed for printed circuit board mounting
• Provides nonintrusive current sensing for control and protection applications
• Through-hole geometry suitable for standard assembly processes

Current Sense Transformers Applications

• Circuit monitoring systems
• Current control loops
• Overcurrent protection mechanisms

Current Sense Transformers Procurement Notes

Verify the specific manufacturer designation, as Renco Electronics was acquired by Standex Electronics. Confirm that the required through-hole package and encapsulation style match the design requirements. Ensure the operating frequency range of 5kHz to 50kHz aligns with the application's signal characteristics before procurement.

Current Sense Transformers Selection Notes

Select this component when a nonintrusive current sensing solution is required for frequencies between 5kHz and 50kHz. The 1:100 ratio and 20 mH inductance define the signal transformation characteristics. Verify that the through-hole form factor fits the PCB layout constraints and that the encapsulated design meets environmental protection needs.

Current Sense Transformers Part Context

The RL-3420 belongs to the RL-34xx series of current sense transformers from Renco Electronics. This series includes related models such as the RL-3410 and RL-3430. These components are typically used in power electronics where isolated current measurement is necessary without disrupting the main power path.

Current Sense Transformers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-referencing requires matching the 1:100 ratio, 5kHz-50kHz frequency range, and through-hole encapsulation specifications.