Parts · Transistors

BC107

3 circuits use this part. Listed as: BJT transistor, NPN TO-18.

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
BC107	110	45 V	100 mA	0.3 W	150 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
BC182	120	50 V	200 mA	0.3 W	150 MHz	1
BC546A	110	65 V	100 mA	0.5 W	150 MHz	2
2N4401	100	40 V	600 mA	0.31 W	250 MHz	24
BC547	110	50 V	100 mA	0.5 W	300 MHz	2
2SC1815-Y	120	50 V	150 mA	0.4 W	80 MHz	1
2N3569	100	40 V	500 mA	0.3 W	60 MHz	1
BC337	100	45 V	800 mA	0.36 W	60 MHz	1
BC546	110	80 V	100 mA	0.5 W	300 MHz	1

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
BC237	110	45 V	100 mA	0.3 W	150 MHz
BC237A	110	45 V	100 mA	0.3 W	150 MHz
BC451	110	45 V	100 mA	0.3 W	150 MHz
BC451A	110	45 V	100 mA	0.3 W	150 MHz
BFY42	110	45 V	100 mA	0.3 W	150 MHz
BC147	110	45 V	200 mA	0.25 W	150 MHz
BC147A	110	45 V	200 mA	0.25 W	150 MHz
BC407	110	45 V	100 mA	0.25 W	150 MHz

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
FuzzPup Pep Box BC107	Clock of Tone / COT50	Fuzz	Fuzz Dog	1590A	3	£27.60	15
Pep Box BC107	Pep Box	Fuzz	Fuzz Dog	1590B	2	£26.40	14
Marigold Fuzz BC107 · BC109C · OC140	Sola Sound Yellow Hybrid Tone Bender	Fuzz	PedalPCB	125B	—	$10.00	37