Parts · Transistors

2N5139

Si PNP BJT.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
2N5139	40	20 V	100 mA	0.2 W	300 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
BC186	40	25 V	100 mA	0.3 W	200 MHz	2
2SA733	40	40 V	300 mA	0.25 W	90 MHz	6
PN200	40	35 V	500 mA	0.625 W	150 MHz	1
2N4125	50	30 V	200 mA	0.31 W	200 MHz	18
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
BC212L	50	50 V	200 mA	0.3 W	200 MHz	1

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
BFV35	40	20 V	100 mA	0.15 W
KSA1150	40	20 V	500 mA	0.3 W
BSV55P	40	15 V	200 mA	0.15 W
BSV55	40	15 V	200 mA	0.3 W
2N4453	40	18 V	200 mA	0.3 W	400 MHz
BSW72	40	25 V	500 mA	0.4 W
KSA643	40	20 V	500 mA	0.5 W
2N3307	40	35 V	50 mA	0.3 W	300 MHz

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	PAiA Phlanger 2N5129 · 2N5139 · 4013 · 566	—	Flanger	Experimentalists Anonymous	—	5	—	75
	Paia 4720a 2N2712 · 2N3391 · 2N4871 · 2N5129	—	Ring Mod / Synth	Experimentalists Anonymous	—	—	—	84