2 layers85.1 × 35.6 mm
SmartTherm
Strooom/SmartTherm
Controlling a Junkers heating (Eurostar ZWE24) with an IoT thermostat
22 parts33
Overview
The BC546 is a bipolar made by DDF in a TO-92 package with 3 pins. 1 NPN 100mA 100nA 300MHz 500mW 65V 6V 800 90mV、250mV NPN TO-92 Bipolar (BJT) ROHS.
PCBKit's library has its KiCad symbol (Transistor_BJT:BC546, from KiCad's library) and its footprint (Package_TO_SOT_THT:TO-92_Inline, from KiCad's library), ready for a KiCad board. 1,994 are in stock at JLCPCB (part C50229582). 80 open-source boards in 67 repositories on GitHub use it.
Symbol
Footprint
Parameters
10- Collector - Emitter Voltage VCEO
- 65V
- Current - Collector Cutoff
- 100nA
- Current - Collector(Ic)
- 100mA
- DC Current Gain
- 800
- Emitter-Base Voltage(Vebo)
- 6V
- Number
- 1 NPN
- Pd - Power Dissipation
- 500mW
- Transition frequency(fT)
- 300MHz
- Vce Saturation(VCE(sat))
- 90mV
- type
- NPN
Order codes
1- BC546LCSC C50229582
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | C | Passive |
| 2 | B | Input |
| 3 | E | Passive |
Open-source boards using it
All 80- 4 layers150 × 100 mm
- 2 layers108 × 88 mm
- 2 layers64 × 56 mm
Rpi dbt03
bildschirmtext/rpi-dbt03
Hardware, Software and Firmware for a Raspberry Pi to DBT-03 adapter
36 parts11MIT - 2 layers74.9 × 89.2 mm
Pictas
bigbass1997/PICTAS
Low-cost replay device for playing back Tool Assisted Speedruns on real hardware
37 parts9 - 2 layers66.7 × 36.8 mm
Kick
Wesemane-Industries/808-kick-eurorack
808 kick (bass drum) for eurorack / modular synth
57 parts8GPL-3.0 - 2 layers78 × 108 mm
Euclid+ Main Board
m0xpd/EUCLIDplus
EUCLID+ is a Clock Divider, Oscillator and Rhythm Sequencer for electronic music applications
131 parts7CC-BY-SA-4.0 - 2 layers28 × 108 mm
Flip Main Board
m0xpd/FLIP
A Bernoulli Gate for Electronic Music Applications, realised in Hardware
48 parts7CC-BY-SA-4.0
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Is there a KiCad symbol and footprint for the BC546?
Yes. The symbol is Transistor_BJT:BC546 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 BC546?
TO-92, with 3 pins. Its footprint is drawn on this page.
Where is the BC546 datasheet?
DDF publishes it: the Datasheet link on this page opens it.
Where can I order the BC546?
JLCPCB lists it as part C50229582, with 1,994 in stock; the sellers' links on this page open their listings.
What can replace the BC546?
Parts like it in the library: the 2N3904 by JSMSEMI, the 2N3904BU by onsemi, the PN2222ABU by onsemi and the BC547B by LGE. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the BC546?
80 boards in 67 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8
2N3904
TO-92-55℃~+150℃ 1 NPN 200mA 300 300MHz 300mV 40V 50nA 625mW 6V NPN TO-92 Bipolar (BJT) ROHSJSMSEMIBipolar (BJT)2N3904BU
TO-92-55℃~+150℃ 1 NPN 100 200mA 200mV 300MHz 40V 50nA 625mW 6V NPN TO-92 Bipolar (BJT) ROHSonsemiBipolar (BJT)PN2222ABU
TO-92-3L-55℃~+150℃ 1 NPN 10uA 1A 300MHz 300mV 35 40V 625mW 6V NPN TO-92-3L Bipolar (BJT) ROHSonsemiBipolar (BJT)BC547B
TO-921 NPN 100mA 100nA 150MHz 200 300mV 45V 625mW 6V NPN TO-92 Bipolar (BJT) ROHSLGEBipolar (BJT)MPSA92
TO-921 PNP 1.5W 250nA 300V 40 500mA 500mV 50MHz 5V PNP TO-92 Bipolar (BJT) ROHSFoshan Blue Rocket ElecBipolar (BJT)2N3906
TO-921 PNP 100 100nA 200mA 250MHz 400mV 40V 5V 625mW PNP TO-92 Bipolar (BJT) ROHSJSMSEMIBipolar (BJT)2N3904-338
TO-92-55℃~+150℃ 1 NPN 1.5W 100nA 200mA 300MHz 300mV 400 40V 6V NPN TO-92 Bipolar (BJT) ROHSALJBipolar (BJT)S8050D331
TO-92-55℃~+150℃ 1 NPN 100nA 150MHz 25V 400 500mA 5V 600mV 625mW NPN TO-92 Bipolar (BJT) ROHSALJBipolar (BJT)