

Overview
The BC237 is a bipolar made by Jiangsu Changjing Electronics Technology (CJ) in a TO-92 package with 3 pins. -55℃~+150℃ 1 NPN 150MHz 15nA 350mW 45V 5A 6V 800mV 90 NPN TO-92 Bipolar (BJT) ROHS.
PCBKit's library has its KiCad symbol (Transistor_BJT:BC237, from KiCad's library) and its footprint (Package_TO_SOT_THT:TO-92_Inline, from KiCad's library), ready for a KiCad board. 19 are in stock at JLCPCB (part C3034831). 33 open-source boards in 28 repositories on GitHub use it.
Symbol
Footprint
Parameters
12- Collector - Emitter Voltage VCEO
- 45V
- Configuration
- Standalone
- Current - Collector Cutoff
- 15nA
- Current - Collector(Ic)
- 5A
- DC Current Gain
- 90
- Emitter-Base Voltage(Vebo)
- 6V
- Number
- 1 NPN
- Operating Temperature
- -55℃~+150℃
- Pd - Power Dissipation
- 350mW
- Transition frequency(fT)
- 150MHz
- Vce Saturation(VCE(sat))
- 800mV
- type
- NPN
Order codes
1- BC237LCSC C3034831
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | C | Passive |
| 2 | B | Input |
| 3 | E | Passive |
Open-source boards using it
All 33- 2 layers

- 2 layers160 × 74.9 mm

- 2 layers100.1 × 100.5 mm

SDR Reciever
greenjacketgirl/SDR_Receiver
This project is an attempt at designing and building a Software Defined Radio receiver that has the capabilities of listening to frequencies ranging from 500kHz to 50MHz utlizing the board designed, a sound card, and…
176 parts8 - 2 layers50.8 × 74.9 mm

- 2 layers47 × 81.5 mm

- 2 layers70 × 30 mm

- 2 layers99.1 × 98.1 mm

Doorbot Panel
DoESLiverpool/doorbot-setup
Scripts to install the software required to deploy the Raspberry Pi DoorBots
26 parts2 - 2 layers58.4 × 84.8 mm

C64NIKI2
ibaldachini/C64NIKI2
This work is licensed under a [Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License][cc-by-nc-sa].
27 parts2
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<iframe src="https://pcbkit.io/embed/parts/cj/BC237" title="BC237 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/BC237.jpg" alt="BC237" width="1200" height="900">[](https://pcbkit.io/parts/cj/BC237)Questions
Is there a KiCad symbol and footprint for the BC237?
Yes. The symbol is Transistor_BJT:BC237 and the footprint Package_TO_SOT_THT:TO-92_Inline, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the BC237?
TO-92, with 3 pins. Its footprint is drawn on this page.
Where is the BC237 datasheet?
Jiangsu Changjing Electronics Technology (CJ) publishes it: the Datasheet link on this page opens it.
Where can I order the BC237?
JLCPCB lists it as part C3034831, with 19 in stock; the sellers' links on this page open their listings.
What can replace the BC237?
Parts like it in the library: the BC557 by Jiangsu Changjing Electronics Technology (CJ), the BC327-40 by DIOTEC, the BC337-40 by DIOTEC and the BC337-40BK by DIOTEC. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the BC237?
33 boards in 28 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8BC557
TO-92TO-92 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)BC327-40
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TO-92-55℃~+150℃ 100MHz 100nA 250 45V 625mW 700mV 800mA NPN TO-92 Bipolar (BJT) ROHSDIOTECBipolar (BJT)BC546C
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