53125C

Current Sense Transformers Overview

The Murata Power Solutions 53125C is a surface-mount current sense transformer designed for high-frequency applications. It features a 1:125 turns ratio and supports primary currents up to 10 A. The component operates within a frequency range of 50 kHz to 500 kHz, with a magnetizing inductance of 3 mH and a secondary resistance of 7.5 ohms. It utilizes an SMD/SMT termination type and is available in PCB mount configurations. Physical dimensions are 8.3 mm in length, 7.2 mm in width, and 5.4 mm in height, weighing 340 mg. The device functions reliably between -40 C and +125 C.

Current Sense Transformers Feature Summary

• Surface-mount design for automated assembly integration
• High accuracy current sensing capability
• Compact encapsulated form factor

Current Sense Transformers Applications

• Switch-mode power supply output monitoring
• Over-current protection circuits
• Industrial power management systems

Current Sense Transformers Procurement Notes

Verify the specific ordering suffix and package variant against the official datasheet before procurement. Confirm that the selected component matches the required turns ratio and current rating for the target circuit. Ensure compatibility with the intended surface-mount reflow or wave soldering process parameters. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability.

Current Sense Transformers Selection Notes

Select this component based on the required 1:125 turns ratio and 10 A primary current capacity. Evaluate the 50 kHz to 500 kHz operating frequency range against the system switching speed. Consider the 3 mH inductance value for leakage current performance. Assess the physical footprint constraints relative to the 8.3 mm by 7.2 mm by 5.4 mm dimensions. Verify thermal stability requirements against the -40 C to +125 C operational temperature range.

Current Sense Transformers Part Context

This component belongs to the 5300 series of current transformers from Murata Power Solutions. It is categorized under PCB-mounted current sensors and transducers. The series includes various encapsulated and non-encapsulated variants designed for different mounting styles and accuracy requirements. It serves as a specialized passive component for precise current measurement in electronic power conversion architectures.

Current Sense Transformers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.