Parts · Transistors

BC107

Si NPN BJT TO-18 / TO-92 TH.11 circuits use this part. Listed as: BJT transistor, NPN TO-18.

Datasheet · archived copy from Siemens; the part is discontinued and the maker no longer publishes it

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
BC237	110	45 V	100 mA	0.3 W	150 MHz	1
2SC2785	110	50 V	100 mA	0.25 W	150 MHz	2
BC847	110	45 V	100 mA	0.2 W	150 MHz	1
BC182	120	50 V	200 mA	0.3 W	150 MHz	7
IT122	100	45 V	50 mA	0.3 W	180 MHz	1
BC546A	110	65 V	100 mA	0.5 W	150 MHz	5
BC547A	110	45 V	100 mA	0.5 W	200 MHz	4
TIS92	100	40 V	400 mA	0.625 W		4

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
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
BC407A	110	45 V	100 mA	0.25 W	150 MHz

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
WEM Pep Box Silicon Vero14×9 Verified BC107 WEM Pep Box Silicon	WEM Pep Box Silicon	Fuzz	Dirtbox Layouts	—	2	—	15
Seymour Duncan Pickup Booster Perfboard Unverified BC107 · BC177 Seymour Duncan Pickup Booster · 1590A	Seymour Duncan Pickup Booster	Boost	Effects Layouts (blog)	1590A	1	—	16
FuzzPup Pep Box BC107 Clock of Tone · 1590A	Clock of Tone	Fuzz	Fuzz Dog	1590A	3	£27.60	15
Pep Box BC107 WEM Pep Box · 1590B	WEM Pep Box	Fuzz	Fuzz Dog	1590B	2	£26.40	14
Marigold Fuzz BC107 · BC109C · OC140 Sola Sound Yellow Hybrid Tone Bender · 125B	Sola Sound Yellow Hybrid Tone Bender	Fuzz	PedalPCB	125B	3	$10.00	37
WEM / Rush Pep Box (silicon version) BC107 WEM Pep Box Silicon	WEM Pep Box Silicon	Fuzz	Revolution Deux	—	3	—	14
Sharp-shinned Fuzz BC107 · BC108 DAM Meathead · 1590A	DAM Meathead	Fuzz	RWL Pedals	1590A	1	—	17
1-Knob Fuzz Bonanza Vero11×8 Verified BC107 1-Knob Fuzz Bonanza	1-Knob Fuzz Bonanza	Fuzz	Tagboard Effects	—	1	—	12
Seymour Duncan Pickup Booster Vero15×11 Verified BC107 · BC177 Seymour Duncan Pickup Booster	Seymour Duncan Pickup Booster	Boost	Tagboard Effects	—	1	—	15
Dunlop JH-F1 Jimi Hendrix Fuzz Face Perfboard BC108 OR BC107 Dallas Arbiter Fuzz Face	Dallas Arbiter Fuzz Face	Fuzz	turretboard.org	—	2	—	11
GrumPCB 2N3906 · BC107/ Bosstone/ Fuzzly Bear	Bosstone/ Fuzzly Bear	Fuzz	Zero G IOD	—	1	$5.00 out	17