FSUSB31 Series DPST 4.3 V 480 Mbps SMT Hi Speed USB 2.0 Switch - US-8

Mfr Part#: FSUSB31K8X
Mounting Method:  Surface Mount
Package Style:  US-8
Packaging:  REEL
Std Packaging Qty:  3,000



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$0.3350 USD (each)
3000+ $0.3350


Qty in Stock : 0
Factory Stock : N/A
Factory Lead-Time: N/A
Min. Order Qty: 3,000
Multiple of: 3,000
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Product Highlight

  • Data Rate: 480 Mbps
  • No of Channels: 1
  • Supply Voltage: 3 to 4.3 V
  • Operating Temp Range: -40 to +85 °C

The FSUSB31 is a low-power, single-port, high-speed USB 2.0 switch. This part is configured as a double-pole, single-throw switch and is optimized for switching or isolating a high-speed (480 Mbps) source or a high-speed and full-speed (12 Mbps) source. The FSUSB31 is compatible with the requirements of USB2.0 and features an extremely low on capacitance (CON) of 3.7 pF.

The wide bandwidth of this device (720 MHz) exceeds the bandwidth needed to pass the third harmonic, resulting in signals with minimum edge and phase distortion. Superior channel-to-channel crosstalk minimizes interference. The FSUSB31 contains special circuitry on the D+ / D- pins that allows the device to withstand an over-voltage condition. This device is also designed to minimize current consumption even when the control voltage applied to the /OE pin is lower than the supply voltage (VCC). This feature is especially valuable for mobile applications, such as cell phones, allowing direct interface with the general-purpose I/Os of the baseband processor. Other applications include port isolation and switching in portable cell phones, PDAs, digital cameras, printers, and notebook computers.


  • Low On Capacitance: 3.7 pF (Typical)
  • Low On Resistance: 6.5 Ω (Typical)
  • Low Power Consumption: 1 µA (Maximum)
  • 10µA Maximum ICCT Over an Expanded Control Voltage Range: (VIN= 2.6 V, VCC= 4.3 V)
  • Wide -3 dB Bandwidth: 720 MHz
  • 8 kV I/O to GND ESD Protection
  • Power-off Protection When VCC= 0V, D+/D— Pins Can Tolerate up to 5.5V
  • Packaged in:
  • 8-lead MicroPak™ (1.6 mm x 1.6 mm)
  • 8-lead US8
  • 8-lead Ultrathin MLP (1.2 x 1.4 mm)


  • Media Tablets
  • Mobile Handsets
  • PMP/MP3 Players
  • Storage & Peripherals
  • Wireless LAN Card & Broadband Access

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