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BD439 on a board, in 3D

BD439

onsemi

100uA 200mV 30 36W 3MHz 45V 4A 5V NPN TO-225 Bipolar (BJT) ROHS

Extended
DatasheetJLCPCBLCSConsemi/BD439
Category
Bipolar (BJT)
Package
TO-225
Pins
3

Overview

The BD439 is a bipolar made by onsemi in a TO-225 package with 3 pins. 100uA 200mV 30 36W 3MHz 45V 4A 5V NPN TO-225 Bipolar (BJT) ROHS.

PCBKit's library has its KiCad symbol (Transistor_BJT:BD439, from KiCad's library) and its footprint (Package_TO_SOT_THT:TO-126-3_Vertical, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C898373).

Symbol

123
Transistor_BJT:BD439From KiCad's library

Footprint

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

Parameters

11
Collector - Emitter Voltage VCEO
45V
Current - Collector Cutoff
100uA
Current - Collector(Ic)
4A
DC Current Gain
30
Emitter-Base Voltage(Vebo)
5V
Number
1 NPN
Operating Temperature
-55℃~+150℃
Pd - Power Dissipation
36W
Transition frequency(fT)
3MHz
Vce Saturation(VCE(sat))
200mV
type
NPN

Order codes

1

Pinout

3
The pins of the BD439
PinNameType
1EPassive
2CPassive
3BInput

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[![BD439](https://pcbkit.io/embed/parts/onsemi/BD439.jpg?size=s)](https://pcbkit.io/parts/onsemi/BD439)

Questions

Is there a KiCad symbol and footprint for the BD439?

Yes. The symbol is Transistor_BJT:BD439 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 BD439?

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

Where is the BD439 datasheet?

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

Where can I order the BD439?

JLCPCB lists it as part C898373, with 0 in stock; the sellers' links on this page open their listings.

What can replace the BD439?

Parts like it in the library: the BD441 by onsemi, the BD438 by STMicroelectronics, the BD437 by YFW and the BD438 by YFW. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8