ON Semiconductor FSUSB242UCX, Dual USB Power Switch, USB, 5Ω, 2.7 V min. 9-Pin, WLCSP

Product overview and Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): PH
Product Details

The FSUSB242 is a switch that provides high voltage and surge protection for the HSD+/HSD- lines. Surge is an increasing concern for small form factor connectors such USB microB and USB Type-C™. This product will provide 2:1 switching while maintaining sufficient signal integrity so the USB 2.0 HS eye diagram can still be passed.

Fully USB Data Port Protection
VDD 0 V− 5.5 V (12 V DC tolerant)
±20 V DC Tolerance on HSD± Port
±26 V Surge Protection w/o External TVS
VDD Operating Range, 2.7 V−5.5 V
HSD RON: 5Ω Typical
CON = 5 pF Typical
Wide −3 dB Bandwidth: > 720 MHz
Low Power Operation: ICC < 10 μA (Typical)
Over Voltage Protection: 3.6 V & 4.5 V
USB Type-C™ ports
USB microB ports
End Products:

Attribute Value
Switch Type USB
Number of Outputs 2
Switch On Resistance
Mounting Type Surface Mount
Package Type WLCSP
Pin Count 9
Dimensions 1.26 x 1.26 x 0.31mm
Length 1.26mm
Width 1.26mm
Height 0.31mm
Maximum Input Voltage 5.5 V
Maximum Operating Temperature +85 °C
Minimum Input Voltage 2.7 V
Minimum Operating Temperature -40 °C
3000 In stock for delivery within 3 working days
Price Each (In a Pack of 10)
HK$ 4.671
(exc. GST)
Per unit
Per Pack*
10 - 90
100 - 490
500 - 990
1000 +
*price indicative
Packaging Options:
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