
Overview
The BD442 is a bipolar made by Jiangsu Changjing Electronics Technology (CJ) in a TO-126 package with 3 pins. -55℃~+150℃ 1 PNP 1.25W 100uA 3MHz 475 4A 5V 800mV 80V PNP TO-126 Bipolar (BJT) ROHS.
PCBKit's library has its KiCad symbol (Transistor_BJT:BD442, 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 C2910293).
Symbol
Footprint
Parameters
11- Collector - Emitter Voltage VCEO
- 80V
- Current - Collector Cutoff
- 100uA
- Current - Collector(Ic)
- 4A
- DC Current Gain
- 475
- Emitter-Base Voltage(Vebo)
- 5V
- Number
- 1 PNP
- Operating Temperature
- -55℃~+150℃
- Pd - Power Dissipation
- 1.25W
- Transition frequency(fT)
- 3MHz
- Vce Saturation(VCE(sat))
- 800mV
- type
- PNP
Order codes
1- BD442LCSC C2910293
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | E | Passive |
| 2 | C | Passive |
| 3 | B | Input |
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<iframe src="https://pcbkit.io/embed/parts/cj/BD442" title="BD442 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/cj/BD442.jpg" alt="BD442" width="1200" height="900">[](https://pcbkit.io/parts/cj/BD442)Questions
Is there a KiCad symbol and footprint for the BD442?
Yes. The symbol is Transistor_BJT:BD442 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 BD442?
TO-126, with 3 pins. Its footprint is drawn on this page.
Where is the BD442 datasheet?
Jiangsu Changjing Electronics Technology (CJ) publishes it: the Datasheet link on this page opens it.
Where can I order the BD442?
JLCPCB lists it as part C2910293, with 0 in stock; the sellers' links on this page open their listings.
What can replace the BD442?
Parts like it in the library: the BD434 by LGE, the BD441 by onsemi, the BD438 by STMicroelectronics and the BD437 by YFW. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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