Parts · Transistors

2N4403

4 circuits use this part. Listed as: BJT transistor, PNP TO-92; BJT transistor, PNP, TO-92.

Substitutes Si PNP 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
2N4403	100	40 V	600 mA	0.31 W	200 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
PN2907	100	40 V	600 mA	0.4 W	200 MHz	4
2N5401	60	150 V	600 mA	0.31 W	100 MHz	1
MPSA92	25	300 V	500 mA	0.625 W	50 MHz	1

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
PN4143	100	40 V	500 mA	0.3 W	200 MHz
BSS80C	100	40 V	800 mA	0.35 W	200 MHz
BFV86B	100	40 V	600 mA	0.36 W
2N3486	100	40 V	600 mA	0.4 W	200 MHz
2SA1338	100	50 V	500 mA	0.3 W	200 MHz
2SA1339	100	50 V	500 mA	0.3 W	200 MHz
2SA1339R	100	50 V	500 mA	0.3 W	200 MHz
BSR15	100	40 V	600 mA	0.425 W	200 MHz

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
Durandal Transparent Drive 2-POS. DIP · 2N4403 · RC4558P	King Tone Blues Power	Overdrive	Aion FX	125B	6	$12.50	49
MXR Headphone Amp 2N4401 · 2N4403 · TL071	MXR Headphone Amp	Utility	General Guitar Gadgets	—	1	$10.00	25
MXR Headphone Amp 2N4401 · 2N4403 · TL071	MXR Headphone Amp	Preamp / Amp-in-a-box	General Guitar Gadgets	—	1	$10.00	25
Chauffeur Overdrive 2N4401 · 2N4403 · 7660SCPAZ · RC4558	Shnobel Tone Daily Driver Overdrive	Fuzz	PedalPCB	1590BB	—	$12.00	89