Parts · Transistors

MPSA65

Si PNP Darlington BJT TO-92 TH.2 circuits use this part.

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
MPSA65	50	30 V	300 mA	0.625 W	100 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
MPS4125	50	30 V	200 mA	0.625 W	150 MHz	1
2N3702	60	25 V	200 mA	0.36 W	100 MHz	5
PN200	40	35 V	500 mA	0.625 W	150 MHz	1
BC327	63	45 V	800 mA	0.5 W	60 MHz	3
2N2904A	40	60 V	600 mA	0.6 W	200 MHz	1
MPS-U55	50	60 V	2000 mA	8 W	100 MHz	1
MPS3638	30	25 V	500 mA	0.625 W	100 MHz	1
2SA1015	70	50 V	150 mA	0.4 W	80 MHz	8

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
BC529	50	30 V	200 mA	0.625 W	100 MHz
BC139A	50	30 V	500 mA	0.7 W	100 MHz
BC462	50	28 V	1500 mA	0.88 W	100 MHz
2SA696	50	30 V	700 mA	0.5 W	75 MHz
BFX29	50	60 V	600 mA	0.6 W	100 MHz
BFX30	50	65 V	600 mA	0.6 W	100 MHz
2N2270AL	50	45 V	1000 mA	1 W	100 MHz
BSW36	50	32 V	500 mA	0.8 W	150 MHz

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	AR-318 Sample And Hold and Noise Generator 2N3393 · 2N3638 · 2N4870 · 2N5172	—	Ring Mod / Synth	Experimentalists Anonymous	—	2	—	132
	AR-324 Lag and LFO 2N3393 · 2N3638 · 3347-1 · CA3080	—	Ring Mod / Synth	Experimentalists Anonymous	—	3	—	71