Parts · Transistors

2N5138

1 circuit uses 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
2N5138	50	30 V	100 mA	0.2 W	40 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
2N4125	50	30 V	200 mA	0.31 W	200 MHz	7
2N3905	50	40 V	200 mA	0.31 W	200 MHz	1
BC558	75	25 V	100 mA	0.5 W	75 MHz	1
2N5401	60	150 V	600 mA	0.31 W	100 MHz	1
2N3638	30	25 V	500 mA	0.3 W	100 MHz	1
2N2907	35	40 V	600 mA	0.4 W	200 MHz	22
BC559	125	25 V	200 mA	0.3 W	75 MHz	1
2N4403	100	40 V	600 mA	0.31 W	200 MHz	4

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
BC203R	50	30 V	75 mA	0.25 W	40 MHz
PN4248	50	40 V	100 mA	0.2 W	40 MHz
BC291	50	40 V	100 mA	0.36 W
BC275	50	25 V	100 mA	0.3 W	65 MHz
BC221	50	30 V	500 mA	0.3 W	75 MHz
2SA482	50	32 V	600 mA	0.6 W	35 MHz
2SA628	55	25 V	100 mA	0.15 W	50 MHz
BSV97	40	30 V	800 mA	0.22 W	40 MHz

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	Comfy Plum 2N5138 · CD4049UBE · ECG123A	—	Octave / Pitch	Dead End FX	1590BBS	3	$15.00	38