Parts · Transistors

BC546

1 circuit uses this part.

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
2N3700	100	80 V	1000 mA	0.5 W	100 MHz	3
MPSA05G	100	60 V	500 mA	0.63 W	100 MHz	2
2SD1616A	135	60 V	1000 mA	0.75 W	100 MHz	1
2N2484	100	60 V	50 mA	0.36 W	50 MHz	1
2N5551	80	160 V	600 mA	0.31 W	100 MHz	1
MPSA06	50	80 V	500 mA	0.625 W	100 MHz	2
MPSA05	50	60 V	500 mA	0.33 W	100 MHz	2
BC639	40	80 V	1000 mA	1 W	50 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

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	ColorTone Supa Tonebender BC546	—	Fuzz	GuitarPCB	—	3	$8.95 out	50