SCS-4-4-125T-TR

Current Sense Transformers Overview

The SCS-4-4-125T-TR is a surface-mount current sense transformer from the Signal Transformer brand. It features a 125:1 turns ratio and supports a primary current rating of 7 A. The device operates within a frequency range of 50 kHz to 1 MHz. Key electrical specifications include a maximum secondary inductance of 1.28 mH, a primary DC resistance of 3 mOhm, and a secondary DC resistance of 13 Ohm. It is designed for board mounting applications.

Current Sense Transformers Feature Summary

• Surface mount construction for automated assembly
• High turns ratio for precise current sensing
• Wide operating temperature range up to +125°C

Current Sense Transformers Applications

• Switch-mode power supply (SMPS) current monitoring
• Inverter control circuits
• Battery management systems

Current Sense Transformers Procurement Notes

Verify the complete part number including the trailing suffix to ensure correct packaging configuration. Confirm that the specified inductance and resistance values align with the target circuit requirements. Check RoHS compliance status if restricted substances are a constraint. Ensure the operating frequency range covers the intended switching speed.

Current Sense Transformers Selection Notes

Select this component when a high turns ratio is required for accurate low-current signal extraction from higher primary currents. The surface mount package facilitates compact PCB layouts. Consider the thermal performance at the maximum operating temperature of 125°C. Evaluate the physical core size against available board space constraints.

Current Sense Transformers Part Context

This model belongs to the SCS series of signal current sensing transformers. These components are engineered for isolation and measurement in power electronics. The series offers various ratios and inductance values to suit different sensing needs. The specific variant provides a balance between sensitivity and current handling capacity.

Current Sense Transformers Replacement Considerations

Direct substitutes may include other SCS series variants with compatible pinouts and similar electrical parameters. Verify that any alternative maintains the 125:1 ratio and 7 A rating. Cross-reference mechanical dimensions to ensure fitment on existing footprints.