Parts · Transistors

2N6428

Si NPN BJT.2 circuits use this part. Listed as: BJT transistor, NPN TO-92; Transistor-TO-92 Inline Wide.

Datasheet · from my.centralsemi.com

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
2N6428	200	50 V	200 mA	0.625 W	100 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
2SC1815Y	200	50 V	150 mA	0.4 W	80 MHz	3
BC550B	200	45 V	100 mA	0.5 W	150 MHz	11
BC546B	200	65 V	100 mA	0.5 W	150 MHz	7
BC547B	200	45 V	100 mA	0.5 W	200 MHz	61
2SC1852	160	50 V	1000 mA	0.625 W	100 MHz	1
ECG123A	200	40 V	800 mA	0.5 W	300 MHz	1
ZTX382B	240	45 V	100 mA	0.45 W	150 MHz	1
TIS97	250	40 V	100 mA	0.5 W	125 MHz	6

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
BCM61B	200	45 V	100 mA	0.39 W	100 MHz
BC847DS	200	45 V	100 mA	0.38 W	100 MHz
BC846BLP4	200	65 V	100 mA	1 W	100 MHz
PN3405	180	50 V	500 mA	0.56 W
BC847B-AU	200	45 V	100 mA	0.33 W
BC850B-AU	200	45 V	100 mA	0.33 W
BC846BDW	200	65 V	100 mA	0.38 W	100 MHz
BC280C	200	40 V	100 mA	0.36 W	100 MHz

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	K Type Fuzz 2N6428 · 2SD352 · 4558 · RC4558 Keeley Fuzz Bender · 1590BB	Keeley Fuzz Bender	Fuzz	Five Cats Pedals	1590BB	5	£5.00	51
	Trademark Fuzz 2N6428 · 2SD352 · 4558 · RC4558 Keeley Fuzz Bender · 125B	Keeley Fuzz Bender	Fuzz	PedalPCB	125B	5	$12.00	51