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BD441 on a board, in 3D

BD441

onsemi

1 NPN 100uA 200mV 30 36W 3MHz 45V 4A NPN TO-225-3 Bipolar (BJT) ROHS

Extended
DatasheetJLCPCBLCSConsemi/BD441
Category
Bipolar (BJT)
Package
TO-225-3
Pins
3

Overview

The BD441 is a bipolar made by onsemi in a TO-225-3 package with 3 pins. 1 NPN 100uA 200mV 30 36W 3MHz 45V 4A NPN TO-225-3 Bipolar (BJT) ROHS.

PCBKit's library has its KiCad symbol (Transistor_BJT:BD441, from KiCad's library) and its footprint (Package_TO_SOT_THT:TO-126-3_Vertical, from KiCad's library), ready for a KiCad board. 501 are in stock at JLCPCB (part C233737). 2 open-source boards in 1 repository on GitHub use it.

Symbol

123
Transistor_BJT:BD441From KiCad's library

Footprint

123
Package_TO_SOT_THT:TO-126-3_VerticalFrom KiCad's library

Parameters

9
Collector - Emitter Voltage VCEO
45V
Current - Collector Cutoff
100uA
Current - Collector(Ic)
4A
DC Current Gain
30
Number
1 NPN
Pd - Power Dissipation
36W
Transition frequency(fT)
3MHz
Vce Saturation(VCE(sat))
200mV
type
NPN

Order codes

1

Pinout

3
The pins of the BD441
PinNameType
1EPassive
2CPassive
3BInput

Open-source boards using it

All 2
  • 2 layers69.6 × 33.5 mmEtl driver pcb, the printed circuit board in 3D

    Etl driver pcb

    BadenLab/nTCscope

    Repository for nTC

    15 parts2MIT
  • 2 layers63.5 × 33 mmETL driver board, the printed circuit board in 3D

    ETL driver board

    BadenLab/nTCscope

    Repository for nTC

    10 parts2MIT

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/onsemi/BD441" title="BD441 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/onsemi/BD441.jpg" alt="BD441" width="1200" height="900">
A picture that opens the part, for a README
[![BD441](https://pcbkit.io/embed/parts/onsemi/BD441.jpg?size=s)](https://pcbkit.io/parts/onsemi/BD441)

Questions

Is there a KiCad symbol and footprint for the BD441?

Yes. The symbol is Transistor_BJT:BD441 and the footprint Package_TO_SOT_THT:TO-126-3_Vertical, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the BD441?

TO-225-3, with 3 pins. Its footprint is drawn on this page.

Where is the BD441 datasheet?

onsemi publishes it: the Datasheet link on this page opens it.

Where can I order the BD441?

JLCPCB lists it as part C233737, with 501 in stock; the sellers' links on this page open their listings.

What can replace the BD441?

Parts like it in the library: the BD438 by STMicroelectronics, the BD437 by YFW, the BD438 by YFW and the BD437 by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the BD441?

2 boards in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8