XS3A1T3157GSH

Overview

The XS3A1T3157GSH is a low-ohmic single-pole double-throw analog switch manufactured by Nexperia. It operates on a single supply voltage ranging from 1.4 V to 4.3 V and features a digital select input (S), two independent inputs/outputs (Y1, Y2), and a common input/output (Z). The device provides very low ON resistance, typically 0.5 Ω at 2.7 V and 4.3 V, with a maximum of 0.75 Ω. It supports high current handling up to 350 mA continuous current under a 3.3 V supply. The component includes Schmitt trigger action for noise immunity and break-before-make switching. It is specified for ambient temperatures between -40 °C and +125 °C.

Feature Summary

• Low ON resistance ensures minimal signal attenuation and distortion during transmission.
• Schmitt trigger action at the digital input provides tolerance to slower rise and fall times.
• Break-before-make switching prevents simultaneous connection of both channels.
• High ESD protection capability exceeds standard requirements for human body and charged device models.

Applications

• Mobile phone
• Tablet / Notebook
• Wearables

Procurement Notes

Verify the specific ordering suffix 'H' against the manufacturer's official documentation to confirm reel packaging specifications. Ensure the selected package variant matches the required PCB footprint dimensions. Confirm that the temperature range meets the operational environment requirements before finalizing procurement orders.

Selection Notes

Select this component when a low-ohmic SPDT switch is required for signals up to the supply voltage. It is suitable for applications needing logic level translation elimination, allowing 1.8 V control signals to manage higher voltage switches. Consider the XSON6 package constraints for space-limited designs requiring thin profiles.

Part Context

This part belongs to the Nexperia XS3A1T3157 series of analog switches. The 'GS' designation indicates the SOT1202 (XSON6) package variant, while 'GM' refers to the SOT886 package. The 'H' suffix typically denotes tape and reel packaging configuration as per industry standards, though specific packing details should be verified in the ordering information section of the datasheet.

Replacement Considerations

Direct functional substitutes within the same family include the XS3A1T3157GM. Verify pin compatibility and package dimensions when replacing the GS variant with the GM variant or other similar SPDT switches from different manufacturers.