SCS-4-4-100T-TR

Current Sense Transformers Overview

The SCS-4-4-100T-TR is a surface-mount current sense transformer manufactured by Signal Transformer. It features a 100:1 turns ratio and supports a frequency range of 50 kHz to 1 MHz. The component has a primary DC resistance of 3 mOhm and a secondary resistance of 9.5 Ohms. It offers a maximum secondary inductance of 820 µH and is rated for an ampere capacity of 7 A. The device utilizes a 4.4 mm core size and operates at temperatures up to +125°C.

Current Sense Transformers Feature Summary

• Surface mount construction for automated assembly
• High-frequency operation capability up to 1 MHz
• Low primary resistance for minimal insertion loss
• High isolation voltage characteristics inherent to transformer design

Current Sense Transformers Applications

• Current sensing in switching power supplies
• Isolated feedback loops in AC/DC converters
• Overcurrent protection circuits
• Battery management systems requiring galvanic isolation

Current Sense Transformers Procurement Notes

Verify the specific suffix TR indicates tape and reel packaging configuration when ordering. Confirm that the 7 A rating aligns with peak current requirements rather than continuous RMS values if applicable. Ensure PCB footprint matches the SMD package dimensions provided in the official datasheet. Check for any RoHS or REACH compliance documentation required by your supply chain standards before finalizing procurement.

Current Sense Transformers Selection Notes

Select this component when high-frequency current monitoring is required with minimal signal distortion. The 100:1 ratio suits applications needing precise current replication for control loop feedback. Consider the 820 µH inductance limit for low-frequency response constraints. Evaluate the 3 mOhm primary resistance against thermal dissipation needs in high-current paths. Compare physical dimensions against available board space constraints.

Current Sense Transformers Part Context

This part belongs to the SCS series of board-mount current transformers designed for compact power electronics. It complements other Signal Transformer components like the ST and DST series, which are power transformers. Unlike those, this model focuses on signal-level current sensing rather than power delivery. It serves as a critical interface between high-power stages and low-voltage control ICs.

Current Sense Transformers Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation. Cross-reference with other 100:1 ratio SMD current transformers from Signal Transformer or competitors only after verifying electrical parameters match exactly. Ensure replacement parts maintain the same frequency range and inductance specifications.