SI8503-B-GM

Current Sensors Overview

The SI8503-B-GM is a unidirectional current sensor manufactured by Skyworks Solutions Inc. It utilizes a transformer with conditioning circuitry to measure AC currents up to 20A. The device provides a ratiometric voltage output with a sensitivity of 98mV/A. It is housed in a 12-VFQFN package and operates as a single-channel sensor. This component is designed for applications requiring precise AC current measurement within compact electronic systems.

Current Sensors Feature Summary

• Transformer-based sensing technology with integrated conditioning
• Unidirectional measurement capability for AC currents
• Ratiometric voltage output interface

Current Sensors Applications

• AC current monitoring in power supplies
• Industrial control system protection circuits
• Energy metering equipment

Current Sensors Procurement Notes

Verify the obsolete status of this part number through official Skyworks channels before procurement planning. Confirm availability of alternative components or updated series replacements if long-term supply stability is required. Ensure compatibility with existing board layouts when sourcing from secondary distributors.

Current Sensors Selection Notes

Select this component specifically for unidirectional AC current sensing applications requiring ratiometric voltage outputs. Evaluate the 20A maximum sensing limit against system requirements. Consider the 12-VFQFN package constraints for PCB design integration. Verify that the transformer-based architecture meets the noise and bandwidth needs of the target application.

Current Sensors Part Context

This part belongs to Skyworks' portfolio of analog and mixed-signal semiconductor products. It serves as a specialized solution for current monitoring, distinct from their digital isolator or clock generator lines. The product represents a legacy offering within their sensor category, often superseded by newer generations in active production lines.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation due to the obsolete status. Consult Skyworks technical support for recommended upgrades or cross-reference guides for compatible modern alternatives.