Parts · Transistors

MPSA18

110 circuits use this part. Listed as: BJT transistor, NPN TO-92; BJT transistor, NPN, TO-92; Electrolytic Capacitors; Semiconductors; Smiconductors.

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
MPSA18	800	45 V	100 mA	0.31 W	100 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
2N5962	600	45 V	50 mA	0.625 W	100 MHz	1
2SC1815BL	500	50 V	150 mA	0.4 W	80 MHz	1
BC850C	520	45 V	100 mA	0.2 W	300 MHz	1
2N6429	400	45 V	200 mA	0.625 W	100 MHz	1
BC550C	420	45 V	100 mA	0.5 W	150 MHz	15
BC550	240	45 V	100 mA	0.5 W	200 MHz	10
2N5210	250	50 V	50 mA	0.31 W	30 MHz	5
BC107B	200	45 V	100 mA	0.3 W	150 MHz	4

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
2N5778	1000	40 V	250 mA	0.2 W
2N997	1000	40 V	300 mA	0.5 W
2SC1685	650	50 V	100 mA	0.25 W	75 MHz
2SC3069	800	50 V	200 mA	0.6 W	250 MHz
2SC3112	600	50 V	150 mA	0.4 W	100 MHz
2SC3112A	600	50 V	150 mA	0.4 W	100 MHz
2SC3113	600	50 V	150 mA	0.2 W	100 MHz
2SC3113A	600	50 V	150 mA	0.2 W	100 MHz

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
Deluge Optical Vibe MPSA18 · PDV-P9203 · TL072	EQD The Depths	Vibrato / Chorus	Aion FX	125B	5	$12.50	70
Elite Boost/Preamp 2N5087 · MPSA18	Fender Elite/Clapton Preamp	Boost	Aion FX	125B	2	$12.50	44
Osiris Distortion / Sustainer 2N5089 · MPSA18	Black Arts Pharaoh	Fuzz	Aion FX	125B	6	$12.50	64
Quartz Optical Compressor 2N4401 · 2N5088 · LM358 · MPSA18	Diamond Compressor	Compressor	Aion FX	125B	3	$12.50	94
TS-50 Bass Preamp 2N3906 · MPSA18 · TL071	Traynor TS-50B	Overdrive	Aion FX	1590BBS	4	$16.00	80
TS-50 Guitar Preamp 2N3906 · MPSA18 · TL071	Traynor TS-50	Overdrive	Aion FX	1590BBS	4	$16.00	83
Neofuzz V 2N5087 · MPSA18	WEM Project V fuzz	Fuzz	Dead End FX	1590BBS	2	$15.00	49
Screaming Life 2N2907A · AC128 · MPSA18 · TC10445CPA	JHS Bunrunner	Fuzz	Dead End FX	1590BBS	5	$15.00	52
Sprocket II 2N3904 · 2N3906 · 2N5088 · BS170	Spaceman Spacerocket II, but with a DEFX twist	Fuzz	Dead End FX	125B	2	$12.00	40
Deep Down 5MM RADIAL LDR · MPSA18 · TL072 · TL074	EQD Depths	Vibrato / Chorus	Five Cats Pedals	1590BB	5	£5.00	57
Dunder Dirt Cheap 2N3906 · MC33178 / LM833 · MPSA18	Seymour Duncan Dirty Deed Distortion	Distortion	Five Cats Pedals	—	4	£4.50	53
Old Soda 2N2907 · MPSA18	Devi Ever Soda Meiser / Vintage Fuzz Master	Fuzz	Five Cats Pedals	1590BB	2	£4.50	22
8-Bit Legend 2N2222 · 2N2907 · MPSA18	BIT: Legend of Fuzz	Fuzz	Fuzz Dog	1590B	2	£26.40	23
Ass Krack Fuzz 2N2222A · 2N2907 · MPSA18	Disaster Fuzz / Krackle Fuzz	Fuzz	Fuzz Dog	1590B	2	£26.40	24
Bearhug Compressor 2N5457/MMBF5457 · BS170 · MPSA18	Torn's Peaker / US / Never Drive / Aenima	Compressor	Fuzz Dog	1590B	2	£31.20	29
Cloven Ripper 2N3904 · 2N5087 · 2N5089 · MPSA18	Hoof Reaper	Fuzz	Fuzz Dog	1590DD	1	£62.40	107
Cocoon Drive 7660SEPA · MPSA18	Chrysalis	Overdrive	Fuzz Dog	1590B	3	£26.40	33
Cone Ripper - Filthy OD/Fuzz 2N2222 · MPSA18	Torn's Peaker / US / Never Drive / Aenima	Fuzz	Fuzz Dog	1590B	2	£27.60	20
DEEBLP 2N2907 · MPSA18	Electric Brown / LP	Fuzz	Fuzz Dog	1590B	2	£24.00	15
Dark Octave Destroyer 2N2222A · MPSA18	Destructo Noctavia	Fuzz	Fuzz Dog	1590B	2	£26.40	26
Deep Vibes Optical Vibe Machine MPSA18 · TL072 · TL074	The Depths	Vibrato / Chorus	Fuzz Dog	1590B	5	£48.00	50
Fillmore Fuzz BC558 · MPSA18	Band of Gypsys Fuzz Face	Fuzz	Fuzz Dog	1590B	2	£30.00	31
FuzzPup Cone Ripper 2N2222A · MPSA18	Torn's Peaker / Aenima / US / Never Drive	Fuzz	Fuzz Dog	1590A	2	£28.80	22
FuzzPup Repeater 2N2646 · MPSA18	Vox Repeat Percussion	Wah / Envelope	Fuzz Dog	1590A	1	£36.00	25
FuzzPup Vintage Soda 2N2907 · MPSA18	Devi Ever Soda Meiser / Vintage Fuzz Master	Fuzz	Fuzz Dog	1590A	2	£28.80	20
Gloomy Drive 2N5089 · MPSA18	DoomiDrive	Overdrive	Fuzz Dog	1590B	2	£31.20	25
HellGazer - Total Sonic Assault 2N2222 · 2N2907 · MPSA18	Shoe Gazer	Fuzz	Fuzz Dog	1590B	3	£38.40	43
HellGazer II 2N2222 · 2N2907 · MPSA18	Shoe Gazer	Fuzz	Fuzz Dog	1590BB	4	£43.20	42
HellGazer Mini 2N2222 · 2N2907 · MPSA18	Shoe Gazer	Fuzz	Fuzz Dog	1590B	4	£43.20	42
Hype Fuzz / Destructor Drive 2N2907A (EMPTY) · MPSA18	—	Fuzz	Fuzz Dog	1590B	3	£27.60	17
Impossibility Drive 2N2222 · 2N2907A · 2N3391A · MPSA18	—	Fuzz	Fuzz Dog	1590BB	4	£43.20	40
Impossibility Drive Mini 2N2222 · 2N2907A · 2N3391A · MPSA18	—	Fuzz	Fuzz Dog	1590B	3	£43.20	41
Lo-Rider Bass Fuzz LM386 · MPSA18	Frantone Lo-Tone	Fuzz	Fuzz Dog	1590B	3	£39.60	33
Magic Vibes Tremolo MPSA18	Magnavibe	Tremolo	Fuzz Dog	1590B	2	£27.60	23
Ramesses Fuzz 2N5089 · MPSA18	Pharaoh	Fuzz	Fuzz Dog	1590B	4	£38.40	48
Repeater - Vox Repeat Percussion 2N2646 · MPSA18	Vox Repeat Percussion	Wah / Envelope	Fuzz Dog	1590B	3	£39.60	22
Revelator Fuzz 2N5089 · MPSA18	Revelation SuperLead / SuperBass	Fuzz	Fuzz Dog	1590B	3	£30.00	31
Rokkitt 2N2907 · MPSA18	Devi Ever Rocket	Fuzz	Fuzz Dog	1590BB	4	£43.20	39
Rooby 2N2907A · MPSA18	Ruby / 90 / Hound's Tooth	Fuzz	Fuzz Dog	1590B	2	£21.60	18
Sandbank Drive 2N7000 · LM833 · MPSA18	Dunes	Overdrive	Fuzz Dog	1590B	2	£43.20	43
Spook Fuzz 2N3904 · 2N5457 · MPSA18	Haunt Fuzz	Fuzz	Fuzz Dog	1590B	5	£36.00	52
Tone Ripper MPSA18 · NPN GE	—	Fuzz	Fuzz Dog	1590B	1	£32.40	28
Traynor TS-50 Preamp 2N3906 · MPSA18 · TL071	Traynor TS-50 Preamp	Preamp / Amp-in-a-box	Fuzz Dog	1590BB	5	£60.00	69
Traynor TS-50B Preamp 2N3906 · MPSA18 · TL071	Traynor TS-50B Preamp	Preamp / Amp-in-a-box	Fuzz Dog	1590BB	5	£60.00	66
Twinkle Drive 4558 · 5532 · MPSA18	Sparkle Drive	Overdrive	Fuzz Dog	1590B	1	£42.00	37
Vintage Soda Fuzz 2N2907 · MPSA18	Soda Meiser / Vintage Fuzz Master	Fuzz	Fuzz Dog	1590B	2	£22.80	15
Watchman Optical Compressor 2N5089 · MPSA18 · OPA2134 · TC7660SEPA	The Warden	Compressor	Fuzz Dog	1590B	6	£54.00	51
NostalgiTone 2112 Dual Combo PCB set: The Early Years of Rush MPSA18 · TL072 · TL074	—	Other	GuitarPCB	1590BB2	7	—	56
NostalgiTone Bridge of Sighs Dual Combo: Legendary Trower Tone MPSA18	—	Other	GuitarPCB	1590BB2	6	—	42
NostalgiTone Dsotm Triple Combo: Eclipse Your Tone BC108C · BS170 · MPSA18	—	Other	GuitarPCB	1590DD	10	—	102
NostalgiTone Phaser Single: Effortless Phase Shifts with Unmatched Control MPSA18	—	Phaser	GuitarPCB	125B	4	—	30
NostalgiTone Vibe Single: Indulge in Swirling Psychedelic Sound MPSA18 · TL074	—	Vibrato / Chorus	GuitarPCB	125B	2	—	26
Clean Drive MPSA18 · TL074	Voodoo Lab Sparkle Drive	Overdrive	JMK PCBs	—	4	$12.00	34
Steaming Kettle Overdrive JRC4558 · MPSA18	Rockbox Boiling Point	Overdrive	JMK PCBs	—	3	$12.00 out	42
Aquababy 4558 · MN3005 · MN3101 · MPSA18	Boss DM-2	Distortion	Madbean	1590B	6	$12.00	86
Ice Scream 4558 · MPSA18	Mid-Boosting Overdrive	Overdrive	Madbean	1590B	3	—	41
Ears Come To Die MPSA18 · PN2907	Devi Ever Hounds Tooth into Ruiner	Fuzz	Mask Audio Electronics	125B	1	$7.00	33
MSB MPSA18 · PN2907	Devi Ever Mirro Safety Bag	Fuzz	Mask Audio Electronics	125B	2	—	12
NO. 2N2907 · LM386 · MPSA18	—	Fuzz	Mask Audio Electronics	125B	2	$7.00	25
Small Format Drive 2N2907 · MPSA18	Rounding Error	Fuzz	Mask Audio Electronics	125B	3	$4.50	20
Alrighty Then 2N2907 · MPSA18	OK by Devi Ever	Fuzz	Moonn Electronics	—	2	€4.50	13
BeautyBeauty MPSA18	Ruby by Devi Ever	Fuzz	Moonn Electronics	—	2	€4.50	16
Brownie 2N2907 · MPSA18	Electric Brown	Fuzz	Moonn Electronics	—	2	€4.50	13
Creep AC176 · MPSA18	Earthquaker Devices Tone Reaper	Fuzz	Moonn Electronics	—	3	€4.50	29
Cuddles 2N2222 · 2N5457 · MPSA18	Devi Ever Big Distortion Sound Machine	Fuzz	Moonn Electronics	—	—	€5.50	42
Fuzzhead FX Stoner Bee 2N2222 · 2N4401 · MPSA18	—	Fuzz	Moonn Electronics	—	5	€5.50	44
Good Vibes MPSA18	Bigfoot FX Magnavibe	Vibrato / Chorus	Moonn Electronics	—	2	€4.50	24
Hype And Ruin 2N2907 · MPSA18	Devi Ever Hyperion II (and also the Ruiner)	Fuzz	Moonn Electronics	—	2	€4.50	17
Hypebite 2N2907 · MPSA18	Hounds Tooth	Fuzz	Moonn Electronics	—	2	€4.50	18
Lo Fran LM386 · MPSA18	Franton Lo Tone Classic Fuzz	Fuzz	Moonn Electronics	—	3	€5.50	33
Mirror 2N3904 · 2N3906 · MPSA18	—	Fuzz	Moonn Electronics	—	2	€4.50	14
Moody Boost MPSA18	Dark Boost by Devi Ever	Fuzz	Moonn Electronics	—	1	€2.50	7
Night Destroyer 2N2222 · MPSA18	Devi Ever Destructo Noctavia	Fuzz	Moonn Electronics	—	2	€4.50	26
Nofrusobek 2N5089 · MPSA18	Black Arts Toneworks Pharaoh	Fuzz	Moonn Electronics	—	4	€5.50	54
Old Timey Soda Shop 2N2907 · MPSA18	Soda Meiser and Vintage Fuzz Master by Devi Ever	Fuzz	Moonn Electronics	—	2	€5.50	20
Space Invader 2N2907 · MPSA18	Devi Ever Rocket (with extra switches)	Fuzz	Moonn Electronics	—	4	€6.50	36
The Boulder 2N2907 · MPSA18	Stone by Devi Ever	Fuzz	Moonn Electronics	—	2	€4.50	25
WORST! POSSIBLE! THING! 2N2222 · 2N2907 · MPSA18	Devi Ever Disaster/Krackle Fuzz	Fuzz	Moonn Electronics	—	2	€4.50	26
Weird Flex 2N2907 · MPSA18	Devi Ever Punch Love	Fuzz	Moonn Electronics	—	2	€5.50	18
Atomizer 2N2907A · MPSA18	Devi Ever Hyperion	Fuzz	PCB Guitar Mania	125B	3	€9.90 out	19
Chief Feedstortion 4013N · 4046N · MPSA18 · TL072	Boss DF-2 Super Distortion &	Octave / Pitch	PCB Guitar Mania	1590BB	3	€11.90 out	129
Crisalida MPSA18	Earthquaker Chrysalis	Overdrive	PCB Guitar Mania	125B	3	€9.90 out	31
Ra’s Pharaoh 2N5089 · MPSA18	Pharaoh Fuzz by Black arts	Fuzz	PCB Guitar Mania	125B	4	€8.90 out	55
Sand Device 2N7000 · LM833N · MPSA18	EQD Dunes	Overdrive	PCB Guitar Mania	125B	3	€9.90 out	45
Sea Lion Compressor 2N5457 · LM13700N · MPSA18	Walrus Audio’s Deep Six	Compressor	PCB Guitar Mania	125B	4	€9.90 out	71
Submarine Device LDR (PHOTO · MPSA18 · TL072 · TL074	EQD the Depths	Vibrato / Chorus	PCB Guitar Mania	125B	7	€11.90 out	56
Submarine Device SMD MPSA18 · TL072 · TL074	EQD the Depths	Vibrato / Chorus	PCB Guitar Mania	125B	5	€21.90 out	21
Tone Guard Device 2N5089 · MPSA18 · OPA2134 · TC1044	EQD The Warden	Compressor	PCB Guitar Mania	125B	3	€11.90 out	49
Ultimate Pharaoh 2N5089 · 2N7000 · MPSA18	Black Arts Toneworks Pharaoh	Fuzz	PCB Guitar Mania	1590BB	4	€11.90 out	57
Watch Tower Overdrive (Palisades inspired) 2N7000 · MPSA13 · MPSA18	EQD Palisades	Overdrive	PCB Guitar Mania	1590XX	5	€14.90 out	68
Abyss MPSA18 · TL072 · TL074	EQD The Depths	Vibrato / Chorus	PedalPCB	125B	5	$10.00	52
Crystal Drive MPSA18	EQD Chrysalis	Fuzz	PedalPCB	125B	3	$8.00	29
Delegate Compressor 2N5089 · MPSA18 · OPA2134 · TC1044	EQD The Warden	Compressor	PedalPCB	125B	6	$12.00	53
Delegate Compressor (Boneyard Edition) 2N5089 · MPSA18 · OPA2134 · TC1044	EQD The Warden	Compressor	PedalPCB	125B	6	$12.00	56
Dunder Chief Distortion 2N3906 · MC33178 · MPSA18	Seymour Duncan Dirty Deed	Fuzz	PedalPCB	125B	4	$8.00	53
Eschaton Preamp 2N5457 · LT1054 · MPSA18	Catalinbread Epoch Bias	Boost	PedalPCB	125B	4	$12.00	51
FET City Drive BS170 · JRC4558 · MPSA18	Friedman Motor City Drive	Distortion	PedalPCB	125B	5	$10.00	59
Frost Drive JRC4558 · MPSA18 · TC1044SCPA	VFE Ice Scream	Distortion	PedalPCB	125B	8	$10.00	43
Glyph Fuzz 2N5089 · MPSA18	Black Arts Toneworks Pharaoh Fuzz	Fuzz	PedalPCB	125B	6	$12.00	56
Hylian Fuzz 2N2222A · 2N2907A · MPSA18	Devi Ever Legend of Fuzz	Fuzz	PedalPCB	125B	2	$8.00	25