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BF422 on a board, in 3D

BF422

Jiangsu Changjing Electronics Technology (CJ)

-55℃~+150℃ 1 NPN 100mA 10nA 250V 50 5V 600mV 60MHz 830mW NPN TO-92 Bipolar (BJT) ROHS

Extended
DatasheetJLCPCBLCSCcj/BF422
Category
Bipolar (BJT)
Package
TO-92
Pins
3

Overview

The BF422 is a bipolar made by Jiangsu Changjing Electronics Technology (CJ) in a TO-92 package with 3 pins. -55℃~+150℃ 1 NPN 100mA 10nA 250V 50 5V 600mV 60MHz 830mW NPN TO-92 Bipolar (BJT) ROHS.

PCBKit's library has its KiCad symbol (Pinmap_Generic:Q_NPN_1E_2C_3B, from PCBKit's generic symbols) and its footprint (Package_TO_SOT_THT:TO-92L, from KiCad's library), ready for a KiCad board. 995 are in stock at JLCPCB (part C2910391). 2 open-source boards in 2 repositories on GitHub use it.

Symbol

Pinmap_Generic:Q_NPN_1E_2C_3BFrom PCBKit's generic symbols

Footprint

123
Package_TO_SOT_THT:TO-92LFrom KiCad's library

Parameters

12
Collector - Emitter Voltage VCEO
250V
Configuration
Standalone
Current - Collector Cutoff
10nA
Current - Collector(Ic)
100mA
DC Current Gain
50
Emitter-Base Voltage(Vebo)
5V
Number
1 NPN
Operating Temperature
-55℃~+150℃
Pd - Power Dissipation
830mW
Transition frequency(fT)
60MHz
Vce Saturation(VCE(sat))
600mV
type
NPN

Order codes

1

Pinout

3
The pins of the BF422
PinNameType
1EPassive
2CPassive
3BInput

Open-source boards using it

All 2

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Questions

Is there a KiCad symbol and footprint for the BF422?

Yes. The symbol is Pinmap_Generic:Q_NPN_1E_2C_3B and the footprint Package_TO_SOT_THT:TO-92L, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the BF422?

TO-92, with 3 pins. Its footprint is drawn on this page.

Where is the BF422 datasheet?

Jiangsu Changjing Electronics Technology (CJ) publishes it: the Datasheet link on this page opens it.

Where can I order the BF422?

JLCPCB lists it as part C2910391, with 995 in stock; the sellers' links on this page open their listings.

What can replace the BF422?

Parts like it in the library: the SS8050D331 by ALJ, the SS8550D331 by ALJ, the BF420-TA(RANGE:MIN=50) by Jiangsu Changjing Electronics Technology (CJ) and the SS8050 by Jiangsu Changjing Electronics Technology (CJ). Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the BF422?

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

Parts like it

8