Parts · Transistors

2SC1815-BL

Si NPN BJT TO-92 TH.2 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
2SC1815-BL	350	50 V	150 mA	0.4 W	80 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
2SC2458BL	350	50 V	150 mA	0.2 W	80 MHz	1
2N5828	400	40 V	100 mA	0.36 W	90 MHz	1
2N6429	400	45 V	200 mA	0.625 W	100 MHz	1
2SC2240BL	350	120 V	100 mA	0.3 W	50 MHz	4
BC550C	420	45 V	100 mA	0.5 W	150 MHz	81
2SC1000	300	50 V	100 mA	0.2 W	40 MHz	5
BC547C	420	45 V	100 mA	0.5 W	200 MHz	18
2SC1583	500	50 V	100 mA	0.4 W	150 MHz	3

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
2SC2868BL	350	80 V	100 mA	0.4 W	80 MHz
BCY59D	350	45 V	100 mA	0.39 W	120 MHz
BCY59DP	350	45 V	100 mA	0.39 W	120 MHz
2N5249	400	50 V	100 mA	0.36 W
2SC6100	400	50 V	2500 mA	0.5 W
2SC6135	400	50 V	1000 mA	0.5 W
2SC2274	320	50 V	500 mA	0.5 W	60 MHz
2N5235	400	60 V	100 mA	0.33 W

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	Zuul 2SC1815-BL · 2SK30A-Y · 4558 · LM324 Guyatone PS-027 Loop Gate · 1590BBS	Guyatone PS-027 Loop Gate	Utility	Dead End FX	1590BBS	3	$15.00	87
	Ibanez SD9 2SC1815-BL · 2SK30A-Y · 4558 · 4558D Ibanez SD-9 Sonic Distortion	Ibanez SD-9 Sonic Distortion	Distortion	Experimentalists Anonymous	—	3	—	35