Parts · Transistors

BC546

Si NPN BJT TO-92 TH.4 circuits use this part.

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
BC546	110	80 V	100 mA	0.5 W	300 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
MPS8098	100	60 V	200 mA	0.6 W	150 MHz	1
2N3700	100	80 V	1000 mA	0.5 W	100 MHz	4
MPSA06G	100	80 V	500 mA	0.63 W	100 MHz	1
MPSA05G	100	60 V	500 mA	0.63 W	100 MHz	6
2SD1616A	135	60 V	1000 mA	0.75 W	100 MHz	1
2N2484	100	60 V	50 mA	0.36 W	50 MHz	6
2N5551	80	160 V	600 mA	0.31 W	100 MHz	6
2SC1452	150	150 V	50 mA	0.7 W	65 MHz	1

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
2SCR554P	120	80 V	1500 mA	0.5 W	300 MHz
2SCR554R	120	80 V	1500 mA	0.5 W	300 MHz
2SC6132	100	80 V	1000 mA	0.5 W
2SCR514R	120	80 V	700 mA	0.5 W	320 MHz
2SCR544P	120	80 V	2500 mA	0.5 W	280 MHz
2SCR544R	120	80 V	2500 mA	0.5 W	280 MHz
BC846A-AU	110	65 V	100 mA	0.33 W
BCV71	110	60 V	100 mA	0.35 W	300 MHz

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
WTF Dist 250 Vero17×14 Verified 4558 · BC546 WTF Dist 250	WTF Dist 250	Distortion	Dirtbox Layouts	—	2	—	22
ColorTone Supa Tonebender BC546	—	Fuzz	GuitarPCB	—	3	$8.95 out	52
Prescription Electronics Experience Vero24×16 Verified 2N3565 · BC546 Prescription Electronics Experience	Prescription Electronics Experience	Fuzz	Tagboard Effects	—	4	—	39
T-Rex Mudhoney V1.1 Vero18×18 Verified 2N5457 · BC546 · OP07 T-Rex Mudhoney	T-Rex Mudhoney	Distortion	Tagboard Effects	—	3	—	31