Parts · Transistors

2SA733

Si PNP BJT TO-92 TH.7 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
2SA733	40	40 V	300 mA	0.25 W	90 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
PN200	40	35 V	500 mA	0.625 W	150 MHz	1
2N4402	50	40 V	600 mA	0.31 W	150 MHz	4
2N2907	35	40 V	600 mA	0.4 W	200 MHz	38
2N2904A	40	60 V	600 mA	0.6 W	200 MHz	1
2N3905	50	40 V	200 mA	0.31 W	200 MHz	6
MPSA65	50	30 V	300 mA	0.625 W	100 MHz	2
BC212L	50	50 V	200 mA	0.3 W	200 MHz	1
2N4125	50	30 V	200 mA	0.31 W	200 MHz	18

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
2SA539	40	45 V	200 mA	0.25 W	100 MHz
BFW90	40	40 V	500 mA	0.3 W	100 MHz
2N5041	40	40 V	1000 mA	0.3 W	80 MHz
BFV86	40	40 V	600 mA	0.36 W
BSX36	40	40 V	500 mA	0.36 W	100 MHz
BSX36CSM	40	40 V	500 mA	0.36 W	100 MHz
BSX36DCSM	40	40 V	500 mA	0.36 W	100 MHz
2SA467	40	30 V	400 mA	0.3 W	100 MHz

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
BOSS CE-1 1458 · 2SA493 · 2SA733 · 2SB434 Boss CE-1	Boss CE-1	Vibrato / Chorus	Experimentalists Anonymous	—	4	—	181
BOSS DR-55 2SA733 · 2SC945 · 2SK30A · ? Boss DR-55	Boss DR-55	Ring Mod / Synth	Experimentalists Anonymous	—	4	—	205
Boss CE-1 (GIF) 2SA493 · 2SA733 · 2SB434 · 2SC536F Boss CE-1 (GIF)	Boss CE-1 (GIF)	Vibrato / Chorus	Experimentalists Anonymous	—	4	—	189
Roland TR-606 2SB586 · 2SB647C · 2SC2021/2SA937 · 2SC945/2SA733 Roland TR-606	Roland TR-606	Ring Mod / Synth	Experimentalists Anonymous	—	8	—	659
Roland TR-808 2SA1015 · 2SA733 · 2SB596 · 2SC828RNZ Roland TR-808	Roland TR-808	Ring Mod / Synth	Experimentalists Anonymous	—	25	—	1122
Boss CE-1 Chorus Ensemble 1458 · 2SA493 · 2SA733 · 2SB434 Boss CE-1	Boss CE-1	Vibrato / Chorus	Revolution Deux	—	7	—	179
Elk Muff Sustainer Vero19×17 Verified 2SA733 Elk Muff Sustainer	Elk Muff Sustainer	Fuzz	Tagboard Effects	—	3	—	29