PMS9505.050NLT

Current Sense Transformers Overview

The PMS9505.050NLT is a board-mount current sensing transformer manufactured by Pulse Electronics, designed for high-precision current measurement applications. It features a turns ratio of 1:50 and an inductance of 1.7 mH. The device supports a maximum primary current of 30 A and operates within a frequency range starting at 20 kHz. Key electrical specifications include a secondary DC resistance of 1.5 ohms and a primary DC resistance of 500 µohms. It offers a secondary voltage rating of 3 kVrms and is qualified to the AEC-Q200 standard. The component utilizes SMD/SMT termination types and functions within a temperature range of -40°C to +125°C.

Current Sense Transformers Feature Summary

• Provides precise conversion of high primary currents into lower secondary currents for accurate measurement purposes
• Meets automotive reliability standards through AEC-Q200 qualification
• Features high isolation capability with a 3 kVrms secondary voltage rating

Current Sense Transformers Applications

• Automotive power electronics systems requiring robust current monitoring
• High-current circuit protection mechanisms
• Precision current sensing in industrial power supplies

Current Sense Transformers Procurement Notes

Verify that the specific part number matches the required 1:50 turns ratio and 1.7 mH inductance values. Confirm AEC-Q200 qualification is necessary for the target application environment. Ensure the PCB layout accommodates the specified SMD/SMT termination style and physical dimensions. Cross-reference the 30 A maximum current rating against peak load requirements to prevent saturation or damage during operation.

Current Sense Transformers Selection Notes

Select this component when high isolation voltage and automotive-grade reliability are required for current sensing. The 1:50 ratio suits applications needing significant signal attenuation from high primary currents. Consider the 20 kHz lower frequency limit to ensure compatibility with the switching frequency of the power stage. Evaluate the thermal performance at +125°C if operating in high-temperature environments.

Current Sense Transformers Part Context

This component belongs to the Pulse Electronics current sensing transformer portfolio, specifically engineered for board-mount integration. It serves as a critical interface between high-power circuits and low-voltage control or monitoring ICs. The design emphasizes accuracy and durability in demanding electrical environments, distinguishing it from general-purpose signal transformers.

Current Sense Transformers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.