Parts · Transistors

2SC1815Y

Si NPN BJT TO-92 TH.3 circuits use this part.

Datasheet · archived copy from Toshiba; the part is discontinued and the maker no longer publishes it

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
2SC1815Y	200	50 V	150 mA	0.4 W	80 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
2SC2458GR	200	50 V	150 mA	0.2 W	80 MHz	11
2N6428	200	50 V	200 mA	0.625 W	100 MHz	2
BC167B	180	45 V	100 mA	0.3 W	85 MHz	1
BC550B	200	45 V	100 mA	0.5 W	150 MHz	11
BC107B	200	45 V	100 mA	0.3 W	150 MHz	14
BC237B	200	45 V	100 mA	0.3 W	150 MHz	1
BC546B	200	65 V	100 mA	0.5 W	150 MHz	7
BC547B	200	45 V	100 mA	0.5 W	200 MHz	61

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
BC290	200	40 V	100 mA	0.36 W
BC290A	200	40 V	100 mA	0.36 W
BC290B	200	40 V	100 mA	0.36 W
BCM61B	200	45 V	100 mA	0.39 W	100 MHz
2SC2868GR	200	80 V	100 mA	0.4 W	80 MHz
BC280C	200	40 V	100 mA	0.36 W	100 MHz
BC317B	200	45 V	150 mA	0.31 W	100 MHz
BCW72L	200	45 V	100 mA	0.225 W

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
Austone Textone Fuzz Nutz Perfboard Verified 2SC1815Y Austone Textone Fuzz Nutz	Austone Textone Fuzz Nutz	Fuzz	Effects Layouts (blog)	—	3	—	24
Pearl Chorus 2SC1815Y · 2SC2240GR · 4558 · CD4007UB Pearl Chorus	Pearl Chorus	Vibrato / Chorus	Experimentalists Anonymous	—	4	—	123
Pearl Compressor 2SA1015Y · 2SC1815Y · 2SC2240GR · 2SK30A-GR Pearl Compressor	Pearl Compressor	Compressor	Experimentalists Anonymous	—	4	—	89