Parts · Transistors

2N4401

24 circuits use this part. Listed as: BJT transistor, NPN TO-92; BJT transistor, NPN, TO-92; Semiconductors; TO-92 Inline Wide-large-solderpads.

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
2N4401	100	40 V	600 mA	0.31 W	250 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
2N2222	100	30 V	800 mA	0.5 W	250 MHz	51
2N2219A	100	50 V	800 mA	0.8 W	300 MHz	2
2N3569	100	40 V	500 mA	0.3 W	60 MHz	1
BC337	100	45 V	800 mA	0.36 W	60 MHz	1
MPSA05G	100	60 V	500 mA	0.63 W	100 MHz	2
2N3700	100	80 V	1000 mA	0.5 W	100 MHz	3
2N1711	100	50 V	600 mA	0.8 W	70 MHz	5
2N5551	80	160 V	600 mA	0.31 W	100 MHz	1

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
BSS79C	100	40 V	800 mA	0.35 W	250 MHz
BFV85C	100	40 V	800 mA	0.36 W	250 MHz
BSS81C	100	35 V	800 mA	0.33 W	250 MHz
PN4141	100	30 V	500 mA	0.3 W	250 MHz
2N3417	100	50 V	500 mA	0.36 W
PN3643	100	30 V	500 mA	0.35 W	250 MHz
2N3302	100	30 V	500 mA	0.36 W	250 MHz
2N4450	100	30 V	500 mA	0.36 W	250 MHz

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
Quartz Optical Compressor 2N4401 · 2N5088 · LM358 · MPSA18	Diamond Compressor	Compressor	Aion FX	125B	3	$12.50	94
Lola Phase 2N4401 · 4558	Mutron BiPhase	Phaser	Dead End FX	—	2	$35.00	185
Lola Phase - DEFX V.2 Version 2N4401 · 4558	Mutron BiPhase	Phaser	Dead End FX	—	2	$35.00	185
Zuperbee 2N4401 · BC108	smallsound/bigsound Buzzz fuzz	Fuzz	Dead End FX	1590BBS	4	$15.00	65
Transistor buffer 3 2N4401	—	Utility	Experimentalists Anonymous	—	—	—	1
Random Cats 2N3904 · 2N4401 · PN2222	Mid-Fi Electronics Random Number Generator	Utility	Five Cats Pedals	—	1	£3.50	25
Goatee Girl 2N4401 · BC549B · TL071	Bearded Lady	Fuzz	Fuzz Dog	1590B	4	£36.00	50
Green Spike 2N4401	Spires Green Channel / Rosac Nu-Fuzz	Fuzz	Fuzz Dog	1590B	2	£26.40	19
Octavia 2N4401 · 2N5087	Octavia	Fuzz	Fuzz Dog	1590B2	2	£45.60	25
RNG 2N3904 · 2N4401 · PN2222	Doug Deeper / Mid-Fi Random Number Generator	Fuzz	Fuzz Dog	1590B	1	£24.00	23
Colorsound Tonebender Mark Ii Professional 2N4401 · 2N5089	Colorsound Tonebender Mark Ii Professional	Fuzz	General Guitar Gadgets	—	2	$13.00	23
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
Weslie 2N4401 · MPF102	—	Vibrato / Chorus	General Guitar Gadgets	—	4	$14.00 out	39
Squishy Octopus 2N4401 · TL072	Enhanced DOD 280	Compressor	GuitarPCB	—	2	$8.95 out	27
Glasshole 2N4401 · LT1054	Mutron Phasor II	Distortion	Madbean	1590BB	3	$14.00	92
Retrograde 2N4401 · 2N5087	Tycobrahe Octavia	Octave / Pitch	Madbean	125B	2	$11.00	28
Dice 2N2222 · 2N3904 · 2N4401	MidFi Electronics Random Number Generator	Fuzz	Moonn Electronics	—	1	€2.50	18
Fuzzhead FX Stoner Bee 2N2222 · 2N4401 · MPSA18	—	Fuzz	Moonn Electronics	—	5	€5.50	44
Octavius 2N4401 · 2N5087	Tycobrahe Octavia	Octave / Pitch	PCB Guitar Mania	125B	1	€9.90 out	28
Chauffeur Overdrive 2N4401 · 2N4403 · 7660SCPAZ · RC4558	Shnobel Tone Daily Driver Overdrive	Fuzz	PedalPCB	1590BB	—	$12.00	89
Duo-Phase 2N4401 · TC1044SCPA · TL072	Mu-Tron Bi-Phase	Vibrato / Chorus	PedalPCB	1590XX	8	$18.00	170
Hammered Kitty Fuzz 2N4401 · RC4558 · TL072	Fender Hello Kitty / Hammertone Fuzz	Fuzz	PedalPCB	125B	5	$12.00	62
Phase II 2N4401 · TC1044SCPA · TL072	Mu-Tron Phasor II	Vibrato / Chorus	PedalPCB	125B	2	$12.00	83