Parts · Transistors

MPSA05

Si NPN BJT TO-92 TH.6 circuits use this part. Listed as: BJT transistor, NPN TO-92.

Datasheet · from onsemi.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
MPSA05	50	60 V	500 mA	0.33 W	100 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
MPSA06	50	80 V	500 mA	0.625 W	100 MHz	6
2N3416	75	50 V	500 mA	0.36 W		1
2N1613	40	50 V	600 mA	0.8 W	80 MHz	3
2SD667	60	80 V	1000 mA	0.9 W	70 MHz	1
BC639	40	80 V	1000 mA	1 W	50 MHz	2
2N5551	80	160 V	600 mA	0.31 W	100 MHz	6
KSP42	40	300 V	500 mA	0.625 W	50 MHz	3
MPSA05G	100	60 V	500 mA	0.63 W	100 MHz	6

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
BFT29	50	80 V	1000 mA	0.36 W	100 MHz
BFT29X	50	80 V	1000 mA	0.36 W	100 MHz
BFW58	50	60 V	1000 mA	0.3 W	80 MHz
BCX45	50	60 V	1000 mA	0.625 W	100 MHz
BCX47	50	60 V	1000 mA	0.625 W	100 MHz
KSP05	50	60 V	500 mA	0.625 W	100 MHz
BSX33CSM	50	55 V	1000 mA	0.5 W	90 MHz
BSX33DCSM	50	55 V	1000 mA	0.5 W	90 MHz

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
Death by Audio Apocalypse Vero29×26 Verified 2N5088 · 741 · LM741 · MPSA05 Death By Audio Apocalypse	Death By Audio Apocalypse	Distortion	Dirtbox Layouts	—	3	—	47
Death by Audio Evil Fuzz Vero19×16 Verified MPSA05 Death By Audio Evil Fuzz	Death By Audio Evil Fuzz	Fuzz	Dirtbox Layouts	—	1	—	11
Death by Audio Interstellar Overdriver Deluxe Vero18×16 Verified MPSA05 Death By Audio Interstellar Overdriver Deluxe	Death By Audio Interstellar Overdriver Deluxe	Fuzz	Dirtbox Layouts	—	4	—	19
Evil Harmonic Overdriver Perfboard Verified MPSA05 Evil Harmonic Overdriver	Evil Harmonic Overdriver	Fuzz	Effects Layouts (blog)	—	3	—	24
Mega Armageddon Death LM386 · MPSA05 Death By Audio Absolute Destruction · 1590B	Death By Audio Absolute Destruction	Fuzz	Fuzz Dog	1590B	1	£30.00	25
Deaf Boyardee Fuzz MPSA05 Death By Audio Evil Fuzz · 125B	Death By Audio Evil Fuzz	Fuzz	PedalPCB	125B	2	$12.00	36