Overview
The FDS9945 is a MOSFET made by onsemi in a SO-8 package with 8 pins. -55℃~+175℃ 100mΩ@10V 13nC@30V 2 N-Channel 2.5V 20pF 2W 3.5A 420pF 60V SO-8 MOSFETs ROHS.
PCBKit's library has its KiCad symbol (Transistors:FDS9945, from CERN's library) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 1,598 are in stock at JLCPCB (part C94891).
Symbol
Footprint
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | S | Passive |
| 2 | G | Passive |
| 3 | S | Passive |
| 4 | G | Passive |
| 5 | D | Passive |
| 6 | D | Passive |
| 7 | D | Passive |
| 8 | D | Passive |
Parts like it
8
AO4264E
SOIC-8-55℃~+150℃ 1 N-channel 1.1nF 13.5A 2.4V 25nC@10V 28pF 300pF 60V 9.8mΩ SOIC-8 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETsSI9407BDY
SO-8-55℃~+150℃ 1 P-Channel 150mΩ@4.5V 3V 4.7A 50pF 5W 600pF 60V 70pF P-Channel SO-8 MOSFETs ROHSVishay IntertechnologyMOSFETsAO4421
SOIC-8-55℃~+150℃ 1 P-Channel 2.9nF 3.1W 3V 40mΩ@10V 55nC@10V 6.2A 60V P-Channel SOIC-8 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETsAO4482
SOIC-8MOSFETsAlpha & Omega SemiconductorCSD88537ND
SOIC-8-55℃~+150℃ 1.4nF 133pF 14nC@10V 16A 19mΩ@6V 2 N-Channel 2.1W 3.6V 5.2pF 60V Half-Bridge N-Channel SOIC-8 MOSFETs ROHSTexas InstrumentsMOSFETsAO4268
SOIC-8-55℃~+150℃ 1 N-channel 19A 2.3V 2.5nF 3.1W 4.8mΩ@10V 60V 65nC@10V 65pF 670pF SOIC-8 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETsAO4292E
SOIC-8-55℃~+150℃ 1 N-channel 1.2nF 100V 2.7V 23mΩ@10V 25nC@10V 3.1W 6.3pF 8A 93pF SOIC-8 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETsFDS4559-HXY
SOP-8-55℃~+150℃ 1 N-Channel + 1 P-Channel 1.137nF、1.148nF 12.1nC@4.5V、20.3nC@10V 1V、1V 2.5W 49.4pF、50pF 5A、6A 60V 85mΩ@10V SOP-8 MOSFETs ROHSHXY MOSFETMOSFETs
Questions
Is there a KiCad symbol and footprint for the FDS9945?
Yes. The symbol is Transistors:FDS9945 and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the FDS9945?
SO-8, with 8 pins. Its footprint is drawn on this page.
Where is the FDS9945 datasheet?
onsemi publishes it: the Datasheet link on this page opens it.
Where can I order the FDS9945?
JLCPCB lists it as part C94891, with 1,598 in stock; the sellers' links on this page open their listings.
What can replace the FDS9945?
Parts like it in the library: the AO4264E by Alpha & Omega Semiconductor, the SI9407BDY by Vishay Intertechnology, the AO4421 by Alpha & Omega Semiconductor and the AO4482 by Alpha & Omega Semiconductor. Check their datasheets: a part that fits the footprint may still differ in its ratings.