Parts · Transistors

BC849

Si NPN BJT SOT-23 SMD.2 circuits use this part.

Datasheet · from assets.nexperia.com

Substitutes Si NPN transistor

Matched on material, polarity and the limits below from the transistor parameter database. Pinouts and packages are not in that data: check the datasheet before you drop one in, and expect gain to change the sound.

This part

Part	hFE min	Vce	Ic	Pc	fT
BC849	200	30 V	100 mA	0.2 W	150 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
BC107B	200	45 V	100 mA	0.3 W	150 MHz	14
BC237B	200	45 V	100 mA	0.3 W	150 MHz	1
BC549B	200	30 V	100 mA	0.5 W	200 MHz	23
BC548B	200	30 V	100 mA	0.5 W	200 MHz	13
BC550B	200	45 V	100 mA	0.5 W	150 MHz	11
2SC2458GR	200	50 V	150 mA	0.2 W	80 MHz	11
2N3415	180	25 V	500 mA	0.36 W		1
BC113	200	25 V	50 mA	0.2 W	60 MHz	1

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
BCW84	200	30 V	100 mA	0.225 W	150 MHz
BCW32L	200	32 V	100 mA	0.225 W
BCW32LT1G	200	32 V	100 mA	0.225 W
BC452B	200	30 V	100 mA	0.3 W	150 MHz
BC453B	200	30 V	100 mA	0.3 W	150 MHz
BC850	200	45 V	100 mA	0.2 W	150 MHz
BCW72R	200	45 V	100 mA	0.2 W	150 MHz
BCW72L	200	45 V	100 mA	0.225 W

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	EchoWreck A PT2399-Based Work-Alike of the Classic Echo Machine BC849 · CD4066 · PT2399 · TL072	—	Delay	Scientific Guitarist	—	2	—	51
	The Wishing Well True Stereo DIY Reverb BC849 · DIP16 · LM78M05CDTX_NOPB · TL072 125B	—	Reverb	Scientific Guitarist	125B	1	—	175