39-3681409

Overview

The Murata Power Solutions 39-3681409 is a current sense transformer designed for industrial applications. It features a primary to secondary turns ratio of 500:5A and an accuracy class of 20.0 with a burden rating of 0.80 VA. The component supports a maximum continuous primary current of 500 A and includes a built-in 1 kOhm resistor. It operates within a frequency range of 50 Hz to 1 kHz and maintains an operating temperature range from -40 °C to +105 °C.

Feature Summary

• Provides precise current sensing via a 500:5A transformation ratio
• Integrates a 1 kOhm internal resistor for simplified circuit design
• Ensures high reliability with a wide operating temperature range

Applications

• Industrial power monitoring systems
• Current sensing in AC/DC converters
• Protection circuits in electrical distribution panels

Procurement Notes

Verify the specific manufacturing date code and lot number upon receipt to ensure compliance with project requirements. Confirm that the physical dimensions and pinout configuration match the target PCB layout. Ensure the application environment remains within the specified -40 °C to +105 °C operating range to maintain performance integrity.

Selection Notes

Select this component when a robust solution for high-current AC measurement is required. The integrated resistor eliminates the need for external burden components, reducing board space. Consider the 500 A primary rating to ensure adequate headroom for peak load conditions in industrial settings.

Part Context

This part belongs to the current sense transformer category from Murata Power Solutions. It is engineered for durability in demanding environments. The design focuses on accurate signal transmission proportional to the primary current flow.

Replacement Considerations

No public confirmed substitute part numbers are available.