SX9306ICSTRT

Touch Capacitive Sensor Overview

The SX9306ICSTRT is a low-power smart proximity sensor interface designed for Specific Absorption Rate (SAR) monitoring in mobile devices. Manufactured by Semtech, this component integrates sensing capabilities to detect human presence near the device antenna. It operates within a supply voltage range of 2.7 V to 3.6 V and features an operating supply current of 27 uA. The device supports surface-mount installation in a WLCSP-9 package and functions reliably across a temperature range of -40°C to +85°C. It belongs to the PerSe product family.

Touch Capacitive Sensor Feature Summary

• Integrated SAR monitoring functionality for mobile safety compliance
• Low power consumption design suitable for battery-operated devices
• Compact WLCSP-9 package for space-constrained applications

Touch Capacitive Sensor Applications

• Smartphone SAR compliance testing
• Mobile device proximity sensing
• Wearable device safety monitoring

Touch Capacitive Sensor Procurement Notes

This component is officially listed as End-of-Life (EOL) by Semtech. Distribution availability is restricted, and original manufacturing support has ceased. Engineers should verify current stock status with authorized distributors and consider obsolescence management strategies. Replacement sourcing may require checking secondary market suppliers or validating alternative components from other manufacturers.

Touch Capacitive Sensor Selection Notes

Designers requiring active SAR sensing solutions should evaluate newer Semtech models or alternative sensor interfaces, as the SX9306 series is discontinued. Verify that any substitute part matches the required WLCSP-9 footprint and electrical specifications if retaining the existing PCB layout. Ensure the replacement component supports the necessary I2C interface and voltage ranges for seamless integration into the target mobile system.

Touch Capacitive Sensor Part Context

The SX9306ICSTRT belongs to Semtech's PerSe family of contact sensors. This series focuses on low-power human detection and proximity sensing technologies. The specific model addresses the growing need for RF exposure monitoring in consumer electronics, providing a dedicated hardware solution for regulatory compliance without significant processing overhead.

Touch Capacitive Sensor Replacement Considerations

Publicly confirmed direct substitutes are not available due to the EOL status. Evaluate Semtech's successor sensor families or third-party SAR sensors with compatible WLCSP-9 packages and similar power profiles.