Parts · Transistors

SFT353

Ge PNP BJT TH.1 circuit uses this part. Listed as: Germanium PNP Transistors.

Substitutes Ge 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
SFT353	80		150 mA	0.2 W	1 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
2G381	75	20 V	500 mA	0.25 W	1 MHz	5
2N527	80	30 V	500 mA	0.225 W	2 MHz	2
2SB54	80	20 V	150 mA	0.15 W	0.5 MHz	5
2SB56	80	25 V	150 mA	0.15 W	0.5 MHz	1
2N526	65	30 V	500 mA	0.225 W	1 MHz	1
SFT337	100	15 V	100 mA	0.15 W	1 MHz	3
NTE102	90	16 V	150 mA	0.15 W	2 MHz	3
ASY33	90	30 V	300 mA	0.15 W	0.5 MHz	1

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
2N1188	80	45 V	500 mA	0.2 W	1 MHz
2N321	80	20 V	200 mA	0.225 W	1 MHz
SFT253	80	20 V		0.225 W	1 MHz
2N652	80	45 V	500 mA	0.2 W	1.2 MHz
ACY19	80	30 V	500 mA	0.26 W	1 MHz
2SAB37	80	20 V	150 mA	0.15 W	1 MHz
AC554	75	24 V	300 mA	0.22 W	1 MHz
AC518	85	20 V	200 mA	0.16 W	1 MHz

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	Maestro FZ-1 Fuzz Tone Turret board2×8 SFT353 Maestro FZ-1 Fuzz-Tone · 1590J	Maestro FZ-1 Fuzz-Tone	Fuzz	Amplified Parts	1590J	2	—	13