Parts · Transistors

BC549B

Si NPN BJT TO-92 TH.23 circuits use this part. Listed as: BJT transistor, NPN TO-92.

Datasheet · from onsemi.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
BC549B	200	30 V	100 mA	0.5 W	200 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
BC548B	200	30 V	100 mA	0.5 W	200 MHz	13
BC547B	200	45 V	100 mA	0.5 W	200 MHz	61
BC550B	200	45 V	100 mA	0.5 W	150 MHz	11
ECG123A	200	40 V	800 mA	0.5 W	300 MHz	1
2N3415	180	25 V	500 mA	0.36 W		1
BC546B	200	65 V	100 mA	0.5 W	150 MHz	7
BC107B	200	45 V	100 mA	0.3 W	150 MHz	14
BC237B	200	45 V	100 mA	0.3 W	150 MHz	1

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
2SC1959GR	200	30 V	500 mA	0.5 W	150 MHz
2SC2982B	200	30 V	2000 mA	0.5 W	150 MHz
KSP6520	200	25 V	100 mA	0.625 W
BC848B-AU	200	30 V	100 mA	0.33 W
BC849B-AU	200	30 V	100 mA	0.33 W
BC510	200	25 V	200 mA	0.36 W	200 MHz
BC510B	200	25 V	200 mA	0.36 W	200 MHz
BC290	200	40 V	100 mA	0.36 W

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
Sparsh V.2 2N5089 · 4558 · BC549B · CA3080 Guyatone PS-025 Touch Overdrive · 1590BBS	Guyatone PS-025 Touch Overdrive	Overdrive	Dead End FX	1590BBS	4	$15.00	113
Basic Audio Fuzz Mutant Vero15×12 Verified BC549B Basic Audio Fuzz Mutant	Basic Audio Fuzz Mutant	Fuzz	Dirtbox Layouts	—	4	—	23
Basic Audio Lucky Number Vero16×13 Verified BC549B Basic Audio Lucky Number	Basic Audio Lucky Number	Distortion	Dirtbox Layouts	—	4	—	24
Black Effects Pedals Fuzzawe Vero15×13 Unverified BC546B · BC549B · MPSA13 Black Effects Pedals Fuzzawe	Black Effects Pedals Fuzzawe	Fuzz	Dirtbox Layouts	—	2	—	20
Colorsound Supa Sustain Vero17×18 Unverified ? · BC549B · MAX1044 · TC1044 Colorsound Supa Sustain	Colorsound Supa Sustain	Compressor	Dirtbox Layouts	—	2	—	31
Colorsound Tremolo V1 Vero14×12 Unverified BC549B Colorsound Tremolo V1	Colorsound Tremolo V1	Vibrato / Chorus	Dirtbox Layouts	—	2	—	19
Dr. Green Bearded Lady Bass Fuzz Vero21×18 Verified 2N4401 · BC549B · TL071 Dr. Green Bearded Lady Bass Fuzz	Dr. Green Bearded Lady Bass Fuzz	Fuzz	Dirtbox Layouts	—	4	—	29
Maxon D&S OD-801 / Ibanez OD-850 1974 Vero19×19 Verified BC549B Ibanez OD-850 Overdrive	Ibanez OD-850 Overdrive	Distortion	Dirtbox Layouts	—	3	—	25
Montarbo PB-2 Buzzer- fuzz section Vero20×11 Verified BC549B Montarbo PB-2 Buzzer- fuzz section	Montarbo PB-2 Buzzer- fuzz section	Fuzz	Dirtbox Layouts	—	2	—	20
Parasit Studio Dogboy Distortion Vero20×12 Unverified BC549B · J201 · TL071 Parasit Studio Dogboy Distortion	Parasit Studio Dogboy Distortion	Distortion	Dirtbox Layouts	—	4	—	27
Roland AF-100 Bee Baa Layout 2 Vero18×17 Verified BC549B · BC549C Roland AF-100 Bee Baa	Roland AF-100 Bee Baa	Boost	Dirtbox Layouts	—	4	—	30
Triple Seven BC549B Basic Audio Lucky Number · 1590B	Basic Audio Lucky Number	Distortion	Effects Layouts	1590B	4	$5.00	33
Dirty Punk Repeater Delay Perfboard Verified 78L05 · BC549B · PT2399 Dirty Punk Repeater Delay · 1590A	Dirty Punk Repeater Delay	Delay	Effects Layouts (blog)	1590A	2	—	16
Freek Fuzz BC549B Creepy Fingers Regulus VIII · 1590B	Creepy Fingers Regulus VIII	Fuzz	Fuzz Dog	1590B	4	£30.00	29
Goatee Girl 2N4401 · BC549B · TL071 Dr. Green Bearded Lady Bass Fuzz · 1590B	Dr. Green Bearded Lady Bass Fuzz	Fuzz	Fuzz Dog	1590B	4	£36.00	50
Pork Rind Fuzz Octave BC549B · BC549C	—	Fuzz	Lectric-FX	—	4	$7.00	40
Lucky Number BC549B Basic Audio Lucky Number	Basic Audio Lucky Number	Other	PCBWay: Glory to Ukraine	—	4	—	23
Mutant BC549B Basic Audio Fuzz Mutant	Basic Audio Fuzz Mutant	Other	PCBWay: Glory to Ukraine	—	4	—	21
Fuzz XIII BC549B Basic Audio Lucky Number · 125B	Basic Audio Lucky Number	Fuzz	PedalPCB	125B	4	$8.00	34
Kudzu Overdrive 2N7000 · BC549B · OPA2134 · OPA2134PA VVT Amps Georgia Overdrive · 125B	VVT Amps Georgia Overdrive	Fuzz	PedalPCB	125B	4	$10.00	39
Mutagen Fuzz BC549B Basic Audio Fuzz Mutant · 125B	Basic Audio Fuzz Mutant	Fuzz	PedalPCB	125B	4	$8.00	30
Lucky Lamb BC549B Basic Audio Lucky Number	Basic Audio Lucky Number	Fuzz	Sheepylove	—	4	€10.00	36
THAT Jam Compressor Vero32×28 Verified BC549B · BS250 · LT1054 · NE5532 THAT Jam Compressor	THAT Jam Compressor	Compressor	Tagboard Effects	—	4	—	46