53070C

Current Sense Transformers Overview

The Murata Power Solutions 53070C is a surface-mount current sense transformer designed for board-level integration. It features a 1:70 turns ratio and supports primary currents up to 10 A. The device operates within a frequency range of 50 kHz to 500 kHz, making it suitable for high-frequency switching applications. Key electrical specifications include a secondary coil resistance of 4.5 Ohms and an inductance of 980 uH. The component measures 8.3 mm in length, 7.2 mm in width, and 5.4 mm in height, with a unit weight of 340 mg. It utilizes SMD/SMT termination types for automated assembly.

Current Sense Transformers Feature Summary

• Surface-mount construction for direct PCB integration
• High-accuracy current sensing capability
• Compact physical footprint for space-constrained designs

Current Sense Transformers Applications

• Switch-mode power supply (SMPS) current monitoring
• DC/DC converter feedback loops
• Industrial power management systems

Current Sense Transformers Procurement Notes

Verify the specific ordering suffix and packaging configuration against the manufacturer's official datasheet before procurement. Ensure that the selected variant matches the required turns ratio and current rating for the target application. Confirm RoHS compliance status and lead times directly with authorized distributors. Cross-reference the Mouser or DigiKey part numbers to ensure accurate sourcing of the genuine Murata Power Solutions component.

Current Sense Transformers Selection Notes

Select this component when a compact, surface-mount solution is required for current sensing in high-frequency environments. The 1:70 ratio and 10 A primary rating define its operational limits. Consider the 50 kHz to 500 kHz frequency range to ensure compatibility with the system's switching frequency. Evaluate the physical dimensions against available PCB real estate. Verify that the secondary impedance aligns with the downstream signal conditioning circuitry requirements.

Current Sense Transformers Part Context

The 53070C belongs to the 5300 series of current transformers from Murata Power Solutions. This series focuses on providing high-accuracy sensing solutions for modern power electronics. The component is categorized under board-mount current sensors, distinguishing it from through-hole or encapsulated industrial variants. It serves as a critical interface between high-current power stages and low-voltage control logic.

Current Sense Transformers Replacement Considerations

Consult the official Murata Power Solutions replacement guide for verified substitute part numbers. Do not assume functional equivalence based solely on similar package dimensions or generic specifications. Verify that any alternative component meets the exact 1:70 turns ratio and 10 A primary current rating. Ensure the replacement maintains the same operating frequency range and inductance characteristics.