Parts · Transistors

BC318

Si NPN BJT.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
BC318	110	30 V	150 mA	0.31 W	100 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
2N2924	100	25 V	100 mA	0.36 W	100 MHz	3
2N2923	100	25 V	100 mA	0.36 W	100 MHz	3
2N6076	100	25 V	100 mA	0.36 W	100 MHz	1
2N2925	100	25 V	100 mA	0.36 W	100 MHz	1
BC107	110	45 V	100 mA	0.3 W	150 MHz	13
BC107A	110	45 V	100 mA	0.3 W	150 MHz	3
BC237	110	45 V	100 mA	0.3 W	150 MHz	1
BC183	120	30 V	200 mA	0.3 W	150 MHz	7

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
BCV61	110	30 V	100 mA	0.25 W	100 MHz
BCV61A	110	30 V	100 mA	0.25 W	100 MHz
BCV61C	110	30 V	100 mA	0.25 W	100 MHz
BCV63	110	30 V	100 mA	0.25 W	100 MHz
BC348A	110	30 V	100 mA	0.3 W	125 MHz
BC317	110	45 V	150 mA	0.31 W	100 MHz
BC317A	110	45 V	150 mA	0.31 W	100 MHz
2SC1204	100	30 V	100 mA	0.31 W	100 MHz

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	Jen Harmon Booster Perfboard Verified BC318 Jen Harmon Booster	Jen Harmon Booster	Overdrive	Effects Layouts (blog)	—	3	—	23