FSUSB31UMX

Analog Switches - Special Purpose Overview

The FSUSB31UMX is a low-power, single-port high-speed USB 2.0 switch manufactured by Fairchild Semiconductor. It supports data rates up to 480Mbps and operates within a supply voltage range of 2.7V to 5.5V. The device features an on-resistance of 10Ω and is housed in a 10-pin UMLP package with dimensions of 1.8 x 1.4 x 0.5mm. It functions as a single-pole single-throw (SPST) switch with one output. The component is designed for surface mount installation and supports an operating temperature range from -40°C to +85°C.

Analog Switches - Special Purpose Feature Summary

• Provides signal switching for high-speed USB 2.0 interfaces supporting 480Mbps data transfer rates
• Operates with low power consumption suitable for portable electronic applications
• Integrates a single SPST switch topology for efficient port management

Analog Switches - Special Purpose Applications

• Portable computers and notebook PCs
• Mobile phones and handheld devices
• Digital cameras and peripheral connections

Analog Switches - Special Purpose Procurement Notes

Verify the manufacturer designation carefully, as Fairchild Semiconductor has been integrated into on Semiconductor. Check if the part number requires an underscore-to-dash conversion (FSUSB31-UMX) to align with current ordering systems. Confirm that the UMLP package and 10-pin configuration match the specific design requirements before procurement.

Analog Switches - Special Purpose Selection Notes

Select this component when a single-port USB 2.0 high-speed switch is required for space-constrained designs. The UMLP package offers a compact footprint of 1.8 x 1.4mm. Ensure the application voltage stays within the 2.7V to 5.5V range and that the thermal environment remains between -40°C and +85°C.

Analog Switches - Special Purpose Part Context

The FSUSB31 series belongs to Fairchild's family of low-power USB switches. While the FSUSB30 is a dual-port variant, the FSUSB31 specifically addresses single-port needs. This distinction is critical for designers selecting between different port counts within the same product line to optimize board space and cost.

Analog Switches - Special Purpose Replacement Considerations

Check for equivalents such as the FSUSB30 if dual-port capability is acceptable. Verify compatibility with on Semiconductor's updated nomenclature standards. No direct public substitute part numbers are confirmed in the provided documentation.