
Overview
The FJT44 is a bipolar made by WEIDA in a SOT-223-4 package with 4 pins.
84 are in stock at JLCPCB (part C5819989). 1 open-source board in 1 repository on GitHub use it.
Symbol
The library has no symbol for this part yet.
Footprint
The library has no footprint for this part yet.
Parameters
10- Collector - Emitter Voltage VCEO
- 400V
- Configuration
- Standalone
- Current - Collector Cutoff
- 100nA
- Current - Collector(Ic)
- 300mA
- DC Current Gain
- 50
- Emitter-Base Voltage(Vebo)
- 6V
- Number
- 1 NPN
- Pd - Power Dissipation
- 2W
- Vce Saturation(VCE(sat))
- 750mV
- type
- NPN
Order codes
1- FJT44LCSC C5819989
Open-source boards using it
All 1- 2 layers96.6 × 50.1 mm

Questions
What package is the FJT44?
SOT-223-4, with 4 pins.
Where is the FJT44 datasheet?
WEIDA publishes it: the Datasheet link on this page opens it.
Where can I order the FJT44?
JLCPCB lists it as part C5819989, with 84 in stock; the sellers' links on this page open their listings.
What can replace the FJT44?
Parts like it in the library: the FJT44KTF by onsemi, the NSS40301MZ4T3G by onsemi, the NZT660A by onsemi and the FZT790A by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the FJT44?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8FJT44KTF
SOT-223-4L-55℃~+150℃ 1 NPN 100nA 2W 300mA 400V 45 6V 750mV NPN SOT-223-4L Bipolar (BJT) ROHSonsemiBipolar (BJT)NSS40301MZ4T3G
SOT-223-4-55℃~+150℃ 100nA 200 215MHz 2W 3A 40V NPN SOT-223-4 Bipolar (BJT) ROHSonsemiBipolar (BJT)NZT660A
SOT-223-4L-55℃~+150℃ 1 PNP 10uA 250 2W 3A 500mV 5V 60V 75MHz PNP SOT-223-4L Bipolar (BJT) ROHSonsemiBipolar (BJT)FZT790A
SOT-223-4L-55℃~+150℃ 1 PNP 100MHz 10uA 200 2W 3A 40V 450mV 5V PNP SOT-223-4L Bipolar (BJT) ROHSonsemiBipolar (BJT)FJT44TF
SOT-223-4L-55℃~+150℃ 1 NPN 100nA 2W 300mA 400V 45 6V 750mV NPN SOT-223-4L Bipolar (BJT) ROHSonsemiBipolar (BJT)BCP51TA
SOT-223-4-65℃~+150℃ 150MHz 1A 20uA 2W 40 45V 500mV 5V PNP SOT-223-4 Bipolar (BJT) ROHSDiodes IncorporatedBipolar (BJT)DZT953
SOT-223-4-55℃~+150℃ 100V 125MHz 200 260mV 3W 50nA 5A 6V NPN SOT-223-4 Bipolar (BJT) ROHSDiodes IncorporatedBipolar (BJT)DZTA42
SOT-223-4-65℃~+150℃ 100nA 300V 40 500mA 500mV 50MHz NPN SOT-223-4 Bipolar (BJT) ROHSDiodes IncorporatedBipolar (BJT)