Parts · Transistors

BC556

Si PNP BJT TO-92 TH.1 circuit uses this part. Listed as: Transistor BC556.

Substitutes Si 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
BC556	75	65 V	100 mA	0.5 W	150 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
2SA1015	70	50 V	150 mA	0.4 W	80 MHz	8
MPS8598	100	60 V	200 mA	0.35 W	150 MHz	1
2N2905A	100	60 V	600 mA	0.6 W	200 MHz	1
2N2907A	100	60 V	600 mA	0.4 W	200 MHz	36
2SA659	80	50 V	200 mA	0.3 W	45 MHz	1
2N5401	60	150 V	600 mA	0.31 W	100 MHz	2
BC212L	50	50 V	200 mA	0.3 W	200 MHz	1
2SA1015Y	120	50 V	150 mA	0.4 W	80 MHz	4

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
2N6223	75	60 V	100 mA	0.36 W
BSW44B	75	60 V	200 mA	0.3 W
BSW21A	75	50 V	200 mA	0.3 W	150 MHz
BSW44A	75	50 V	200 mA	0.3 W
BSW44AK	75	50 V	200 mA	0.3 W
BSV42	75	70 V	500 mA	0.6 W	100 MHz
2N3671	75	50 V	600 mA	0.6 W	200 MHz
BSV46	75	70 V	500 mA	0.4 W	100 MHz

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	Allure Chorus BC547 · BC556 · MN3102 · MN3207 Elur Chorus ESC-5 · 1590B	Elur Chorus ESC-5	Vibrato / Chorus	HotKits	1590B	2	$6.00	40