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FSUSB42MUX is listed in the Analog Switches - Special Purpose range at ChipApex. The manufacturer field lists onsemi. Its product description is IC USB SWITCH DPDT 10MSOP. Review the specifications below when checking this part for your BOM.
The FSUSB42MUX is a dual DPDT USB switch IC manufactured by onsemi, designed for high-speed data routing in portable electronics. It operates within a supply voltage range of 2.4 V to 4.4 V and features a typical on-resistance of 3.9 ohms with a maximum of 7.5 ohms. The device supports a -3dB bandwidth exceeding 720 MHz, ensuring signal integrity for USB 2.0 applications. Key electrical parameters include a maximum operating current of 1 uA, propagation delay of 40 ns, and turn-off time of 35 ns. It is housed in a 10-pin MSOP package and withstands temperatures from -40°C to +85°C.
Verify the specific suffix MUX against official datasheets to confirm the MSOP-10 package configuration. Ensure compatibility with system voltage levels between 2.4 V and 4.4 V. Check RoHS compliance status through manufacturer documentation before integration into regulated markets.
Select this component when dual independent switching paths are required for USB 2.0 interfaces. The low power consumption makes it suitable for battery-operated devices. Verify that the 7.5 ohm maximum on-resistance meets the impedance matching requirements of the target application circuit.
This part belongs to the FSUSB42 series of USB switches from onsemi. It shares functional similarities with variants like the FSUSB42UMX but differs in packaging, specifically using MSOP-10 instead of UMLP-10. The series is designed for compact form factors in consumer electronics.
Direct substitutes may include other FSUSB42 series variants such as FSUSB42UMX, provided the package difference (MSOP vs UMLP) is accommodated in the PCB layout. Cross-reference pinouts and electrical specifications carefully.
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