Parts · Transistors

BC107B

4 circuits use this part. Listed as: BJT transistor, NPN TO-18; Capacitors.

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
BC107B	200	45 V	100 mA	0.3 W	150 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
BC550B	200	45 V	100 mA	0.5 W	150 MHz	2
BC546B	200	65 V	100 mA	0.5 W	150 MHz	2
BC547B	200	45 V	100 mA	0.5 W	200 MHz	11
2SC1815-GR	200	50 V	150 mA	0.4 W	80 MHz	5
2SC2458GR	200	50 V	150 mA	0.2 W	80 MHz	2
2N6428	200	50 V	200 mA	0.625 W	100 MHz	2
ECG123A	200	40 V	800 mA	0.5 W	300 MHz	1
BC550	240	45 V	100 mA	0.5 W	200 MHz	10

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
BC237B	200	45 V	100 mA	0.3 W	150 MHz
BC451B	200	45 V	100 mA	0.3 W	150 MHz
BC147B	200	45 V	200 mA	0.25 W	150 MHz
BC407B	200	45 V	100 mA	0.25 W	150 MHz
BC347B	200	45 V	100 mA	0.3 W	125 MHz
BCW72L	200	45 V	100 mA	0.225 W
BC290	200	40 V	100 mA	0.36 W
BC290A	200	40 V	100 mA	0.36 W

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
FuzzPup Thug Luxe BC107B · BC337-17	Meathead Deluxe	Overdrive	Fuzz Dog	1590A	3	£26.40	14
Thug DeLuxe BC107B · BC337-16	Meathead Deluxe	Fuzz	Fuzz Dog	1590B	1	£25.20	15
Deluxe Meat BC107B · BC337-16	DAM Deluxe Meathead	Fuzz	PCB Guitar Mania	125B	4	€9.90 out	19
Aberration Fuzz BC107B · MP38A	Great Eastern FX Co Focus Fuzz	Fuzz	PedalPCB	125B	3	$12.00	45