Parts · Transistors

2SC2603F

Si NPN BJT.4 circuits use this part.

Substitutes Si NPN 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
2SC2603	90		200 mA	0.3 W	100 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
MPS6513	90	30 V	100 mA	0.31 W	125 MHz	6
2N5551	80	160 V	600 mA	0.31 W	100 MHz	6
2N2924	100	25 V	100 mA	0.36 W	100 MHz	3
2N2923	100	25 V	100 mA	0.36 W	100 MHz	3
2N6076	100	25 V	100 mA	0.36 W	100 MHz	1
2N2925	100	25 V	100 mA	0.36 W	100 MHz	1
2N3393	90	25 V	100 mA	0.2 W	70 MHz	4
2SC381	90	20 V	100 mA	0.2 W	150 MHz	1

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
2SC2575	90	50 V	200 mA	0.3 W	100 MHz
BC234	90	30 V	100 mA	0.3 W	100 MHz
BC234A	90	45 V	100 mA	0.3 W	100 MHz
2SC1485	90	250 V	125 mA	0.35 W
2SC3361	90	50 V	150 mA	0.4 W	100 MHz
2SC2812	90	50 V	150 mA	0.2 W	100 MHz
2SC3134	90	50 V	150 mA	0.2 W	100 MHz
2SC713	90	25 V	100 mA	0.2 W	100 MHz

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
BOSS DD-2 2SA1115F · 2SC2603F · 2SC732TM-GR · 2SK30A-O Boss DD-2	Boss DD-2	Delay	Experimentalists Anonymous	—	3	—	179
BOSS DF2 2SC2603F · 2SC732TM-GR · 2SK30A-Y · HD14001BP Boss DF2	Boss DF2	Distortion	Experimentalists Anonymous	—	4	—	203
BOSS DR-100 2SA1115F · 2SB642R · 2SC2603F · 2SC945K Boss DR-100	Boss DR-100	Ring Mod / Synth	Experimentalists Anonymous	—	4	—	289
BOSS DR-110 2SA1115F · 2SB642R · 2SC2603F · 2SC945K Boss DR-110	Boss DR-110	Ring Mod / Synth	Experimentalists Anonymous	—	4	—	288