USB Power Switches

USB power switches are power management devices used to charge electronic devices on USB ports and hubs on computers, docking stations, handheld devices and automotive devices. 


How do USB power switches work?

They work by monitoring the current on a device and latch a switch off if the output current is shorted. They often have an auto reset feature which reactivates the switch once the short circuit is removed. They work in the same way as hot swap controllers, which allow circuit boards and electronic cards to be inserted into equipment, removing the need to power down during use.


Features of USB power switches

Most USB power switches have multiple safety features. For instance, built in thermal-overload protection limits junction temperature and dissipation of power. 


The internal circuity is limited to an accurate figure to protect the input supply against short circuit conditions as well as overload. They're also fitted with fault signals that notify the microprocessor whenever there's a current-limit, under voltage lockout (UVLO), short-circuit fault or thermal overload.


...
Read more Read less

Filters

Viewing 21 - 40 of 246 products
Results per page
Description Price Switch Type Number of Outputs Switch On Resistance Maximum Power Dissipation Mounting Type Package Type Pin Count Current Limit Dimensions Length Width Height Maximum Input Voltage Maximum Operating Temperature
RS Stock No. 145-9133
Mfr. Part No.MIC2025-2YM
BrandMicrochip
HK$5.014
Each (In a Tube of 95)
units
High Side, USB Power Distribution 3 90mΩ Internally Limited Surface Mount SOIC 8 0.7A 5 x 3.99 x 1.63mm 5mm 3.99mm 1.63mm 5.5 V +85 °C
RS Stock No. 165-8542
Mfr. Part No.AP2191DWG-7
HK$1.16
Each (On a Reel of 3000)
units
High Side 1 115mΩ Internally Limited Surface Mount SOT-25 5 2.6A 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm 5.5 V +85 °C
RS Stock No. 165-8530
Mfr. Part No.AP2101MPG-13
HK$2.101
Each (On a Reel of 2500)
units
Low Side 2 115mΩ Internally Limited Surface Mount MSOP 8EP 8 2.8A 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5.5 V +85 °C
RS Stock No. 165-8346
Mfr. Part No.AP2511MP-13
HK$1.23
Each (On a Reel of 2500)
units
High Side 2 135mΩ Internally Limited Surface Mount MSOP 8EP 8 4.6A 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5.5 V +85 °C
RS Stock No. 170-9001
Mfr. Part No.AP2152SG-13
HK$1.381
Each (On a Reel of 2500)
units
High Side 2 160mΩ Internally Limited Surface Mount SOIC 8 1A 4.95 x 3.95 x 1.5mm 4.95mm 3.95mm 1.5mm 5.5 V +85 °C
RS Stock No. 146-4712
Mfr. Part No.AP22814BM8-13
HK$1.21
Each (On a Reel of 2500)
units
High Side 2 65mΩ - Surface Mount MSOP 8 3.8A 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 2.4 V +85 °C
RS Stock No. 162-7140
Mfr. Part No.TPS2062D
HK$14.251
Each (In a Tube of 75)
units
High Side, USB Power Distribution 4 70mΩ 585.82 mW Surface Mount SOIC 8 1.5A 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 5.5 V +85 °C
RS Stock No. 146-4707
Mfr. Part No.AP22814AW5-7
HK$1.16
Each (On a Reel of 3000)
units
High Side 1 65mΩ - Surface Mount SOT25 5 3.8A 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm 2.4 V +85 °C
RS Stock No. 146-4910
Mfr. Part No.AP22804ASN-7
HK$4.38
Each (In a Pack of 10)
units
High Side 1 65mΩ - Surface Mount U-DFN2020 5 + Tab 3.3A 2.07 x 2.07 x 0.58mm 2.07mm 2.07mm 0.58mm 2.4 V +85 °C
RS Stock No. 517-1034
Mfr. Part No.TPS2022D
HK$20.726
Each (In a Pack of 5)
units
High Side, USB Power Distribution 4 33mΩ 725 mW Surface Mount SOIC 8 1.5A 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 5.5 V +85 °C
RS Stock No. 162-7142
Mfr. Part No.TPS2065D
HK$9.163
Each (In a Tube of 75)
units
High Side, USB Power Distribution 4 70mΩ 585.82 mW Surface Mount SOIC 8 1.5A 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 5.5 V +85 °C
RS Stock No. 168-5062
Mfr. Part No.TPS2559QWDRCTQ1
HK$17.394
Each (On a Reel of 250)
units
Power 3 13mΩ Internally Limited Surface Mount VSON 10 7460mA 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 6.5 V +125 °C
RS Stock No. 145-0653
Mfr. Part No.TPS2045AD
HK$9.18
Each (In a Tube of 75)
units
High Side, USB Power Distribution 4 80mΩ 725 mW Surface Mount SOIC 8 0.5A 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 5.5 V +85 °C
RS Stock No. 186-1507
Mfr. Part No.FUSB307BVMPX
HK$27.472
Each (In a Pack of 5)
units
USB - - - Surface Mount WQFN 16 210.5mA 3 x 3 x 0.75mm 3mm 3mm 0.75mm 21.5 V +105 °C
RS Stock No. 822-8833
Mfr. Part No.AP2401S-13
HK$2.255
Each (In a Pack of 25)
units
High Side 2 135mΩ Internally Limited Surface Mount SOIC 8 2.85A 4.95 x 3.95 x 1.5mm 4.95mm 3.95mm 1.5mm 5.5 V +85 °C
RS Stock No. 177-0315
Mfr. Part No.MIC2025-1YMM
BrandMicrochip
HK$4.16
Each (In a Tube of 100)
units
USB High Side Power 1 160mΩ - Surface Mount MSOP 8 0.85A 3 x 3 x 0.92mm 3mm 3mm 0.92mm 5.5 V +85 °C
RS Stock No. 146-4706
Mfr. Part No.AP22814ASN-7
HK$1.321
Each (On a Reel of 3000)
units
High Side 1 65mΩ - Surface Mount U-DFN2020 5 + Tab 3.8A 2.07 x 2.07 x 0.58mm 2.07mm 2.07mm 0.58mm 2.4 V +85 °C
RS Stock No. 146-4824
Mfr. Part No.AP22811AW5-7
HK$2.91
Each (In a Pack of 10)
units
High Side 1 90mΩ - Surface Mount SOT25 5 3.2A 3.1 x 1.7 x 1.3mm 3.1mm 1.7mm 1.3mm 2.4 V +85 °C
RS Stock No. 822-8830
Mfr. Part No.AP2401MP-13
HK$1.486
Each (In a Pack of 25)
units
High Side 2 135mΩ Internally Limited Surface Mount MSOP 8 2.85A 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5.5 V +85 °C
RS Stock No. 662-2502
Mfr. Part No.TPS2148IDGN
HK$24.89
Each (In a Pack of 5)
units
High Side, USB Power Distribution 2 340mΩ 1.46 W Surface Mount MSOP 8 0.4A 3 x 3 x 1.02mm 3mm 3mm 1.02mm 5.5 V +85 °C
Related Products
The single throw types have 3mm contact separationElectrical ...
Description:
The single throw types have 3mm contact separationElectrical life: >104 operations at full loadMaximum operating temperature: +90°CConnection is by 4.8´0.8mm blade terminalsDimensions: H21, W15 (SP), W24 (DP), depth behind panel 12.5 (19.9 with terminals), max. panel thickness 3 mm.
A fully approved double pole rocker switchFits into ...
Description:
A fully approved double pole rocker switchFits into the space traditionally required for a single pole switchDPST silver contactsConnection via 6·3mm faston connectors>3mm contact gapNylon 66 94 V-2.
Marquardt 1800 series single and double pole rocker ...
Description:
Marquardt 1800 series single and double pole rocker switches. The long life 1800 rocker switches are suitable for use in Class II appliances and are available in a choice of styles that includes non illuminated, fully illuminated red, amber or ...
Marquardt 1858 series of miniature double pole single ...
Description:
Marquardt 1858 series of miniature double pole single throw rocker switches. The non illuminated 1858 rocker switches are suitable for use in Class II appliances and are available in a choice of PCB mount or 4.8mm Faston/Quick Connect style tab ...