Parts · Transistors

2SC1815BL

Si NPN BJT TO-92 TH.4 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
2SC1815BL	500	50 V	150 mA	0.4 W	80 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
2SC1583	500	50 V	100 mA	0.4 W	150 MHz	3
2N5828	400	40 V	100 mA	0.36 W	90 MHz	1
2SC1685	650	50 V	100 mA	0.25 W	75 MHz	1
2N6429	400	45 V	200 mA	0.625 W	100 MHz	1
BC550C	420	45 V	100 mA	0.5 W	150 MHz	81
BC547C	420	45 V	100 mA	0.5 W	200 MHz	18
2SC2458BL	350	50 V	150 mA	0.2 W	80 MHz	1
BC850C	520	45 V	100 mA	0.2 W	300 MHz	1

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
2SC1736	500	50 V	100 mA	0.5 W	75 MHz
MPSA18RLRAG	500	45 V	200 mA	0.63 W	100 MHz
MPSA18RLRMG	500	45 V	200 mA	0.63 W	100 MHz
2SC1888	500	60 V	3000 mA	0.8 W
BCX38	500	60 V	800 mA	1 W
BCX38A	500	60 V	800 mA	1 W
BC524C	450	45 V	100 mA	0.625 W
BC171C	450	45 V	100 mA	0.3 W	100 MHz

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
Inchindown Redux 2N3904 · 2SA1015Y · 2SC1815BL · 74HCU04N Ibanez EM5 Echomachine · 1590J	Ibanez EM5 Echomachine	Vibrato / Chorus	Dead End FX	1590J	6	$15.00	101
Ibanez EM5 2SA1015Y · 2SC1815BL · 2SC1815GR · 2SK118O Ibanez EM5 Echomachine	Ibanez EM5 Echomachine	Delay	Experimentalists Anonymous	—	—	—	111
Ibanez OD855 2SC1815BL · 2SK44SP · 4558 · RC4558 Ibanez OD-855	Ibanez OD-855	Distortion	Experimentalists Anonymous	—	3	—	75
Ibanez OD855 Overdrive 2 2SC1815BL · 4558	—	Overdrive	PCBWay: Glory to Ukraine	—	3	—	27