

Overview
The BU941ZPFI is a darlington Transistor made by STMicroelectronics in a TO-3PF-3 package with 3 pins. 100uA 15A 2V 300 350V 65W NPN TO-3PF-3 Darlington Transistors ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:TIP112 PBFREE, from EasyEDA) and its footprint (EasyEDA_Cloud:TO-3PF-3_L15.5-W5.5-P5.45-L, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C222196). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
9- Collector - Emitter Voltage VCEO
- 350V
- Current - Collector Cutoff
- 100uA
- Current - Collector(Ic)
- 15A
- DC Current Gain
- 300
- Emitter-Base Voltage VEBO
- 5V
- Pd - Power Dissipation
- 65W
- Type
- NPN
- Vbe Saturation(VBE(sat))
- 2.5V, 2.7V, 2.2V
- Vce Saturation(VCE(sat))
- 2V
Order codes
1- BU941ZPFILCSC C222196
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | B | Unspecified |
| 2 | C | Unspecified |
| 3 | E | Unspecified |
Open-source boards using it
All 1- 2 layers

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Is there a KiCad symbol and footprint for the BU941ZPFI?
Yes. The symbol is EasyEDA_Cloud:TIP112 PBFREE and the footprint EasyEDA_Cloud:TO-3PF-3_L15.5-W5.5-P5.45-L, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the BU941ZPFI?
TO-3PF-3, with 3 pins. Its footprint is drawn on this page.
Where is the BU941ZPFI datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the BU941ZPFI?
JLCPCB lists it as part C222196, with 0 in stock; the sellers' links on this page open their listings.
Which open-source boards use the BU941ZPFI?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.