Parts · Transistors

BC547B

11 circuits use this part. Listed as: BJT transistor, NPN TO-92.

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
BC547B	200	45 V	100 mA	0.5 W	200 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
BC550B	200	45 V	100 mA	0.5 W	150 MHz	2
ECG123A	200	40 V	800 mA	0.5 W	300 MHz	1
BC546B	200	65 V	100 mA	0.5 W	150 MHz	2
BC107B	200	45 V	100 mA	0.3 W	150 MHz	4
BC550	240	45 V	100 mA	0.5 W	200 MHz	10
2N6428	200	50 V	200 mA	0.625 W	100 MHz	2
2SC1815-GR	200	50 V	150 mA	0.4 W	80 MHz	5
2SD1616A	135	60 V	1000 mA	0.75 W	100 MHz	1

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
BC847B-AU	200	45 V	100 mA	0.33 W
BC850B-AU	200	45 V	100 mA	0.33 W
BC290	200	40 V	100 mA	0.36 W
BC290A	200	40 V	100 mA	0.36 W
BC290B	200	40 V	100 mA	0.36 W
2SC945-GR	200	50 V	150 mA	0.4 W	150 MHz
PN3417	180	50 V	500 mA	0.5 W
BC846B-AU	200	65 V	100 mA	0.33 W

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
Drowzee 4558 · BC547B · MN3012 · TLO22	Last Gasp Arts Hypnospiral flanger	Flanger	Dead End FX	1590BBS	—	$15.00	105
Moonstone 2N3700 · 2N3904 · 2N5088 · BC547B	Wyllie Moonrock	Fuzz	Dead End FX	1590BBS	4	$15.00	65
GreaSi Box BC337 · BC547B	GreaseBox GB-83	Fuzz	Fuzz Dog	1590B	2	£26.40	15
Appetite for Distortion BC547B · J201 · TL064	Slash Signature Marshal AFD	Distortion	PCB Guitar Mania	125B	2	€11.90 out	60
Engel Pre-amp BC547B · J201 · TL061 · TL064	Engl 530 Preamp	Distortion	PCB Guitar Mania	125B	6	€11.90 out	67
Mesa DR. BC547B · J201 · TL074	Mesa Boogie Dual Rectifier	Distortion	PCB Guitar Mania	125B	1	€9.90 out	55
Soldado Preamp BC547B · J201 · TL064	Soldano SLO 100	Distortion	PCB Guitar Mania	125B	2	€9.90 out	54
Uberknall + Amp Tone Stack BC547B · J201 · TL062 · TL074	Bogner Uberschall Prea-amp	Distortion	PCB Guitar Mania	125B	2	€11.90 out	71
Uberknall Preamp BC547B · J201 · TL064	Bogner Uberschall Tube amp	Distortion	PCB Guitar Mania	125B	2	€9.90 out	58
Champ Stamp Overdrive 2N3904 · BC547B · J201	Great Eastern FX Co Small Speaker Overdrive	Fuzz	PedalPCB	125B	—	$10.00	48
Temper Fuzz BC547B	Adventure Audio Thaw Fuzz	Fuzz	PedalPCB	125B	3	$12.00	52