Parts · Transistors

BC559C

Si PNP BJT TO-92 TH.3 circuits use this part. Listed as: BJT transistor, PNP, TO-92.

Datasheet · from onsemi.com

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
BC559C	420	25 V	100 mA	0.5 W	75 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
BC558C	420	25 V	100 mA	0.5 W	75 MHz	1
BC557C	450	45 V	100 mA	0.5 W	75 MHz	13
BC560C	420	45 V	100 mA	0.5 W	150 MHz	11
BC307C	500	45 V	100 mA	0.3 W	130 MHz	2
2SA798	250	50 V	100 mA	0.4 W	50 MHz	1
2N3965	250	60 V	200 mA	0.36 W	50 MHz	3
BC560B	240	45 V	100 mA	0.5 W	150 MHz	4
BC557B	200	45 V	100 mA	0.5 W	75 MHz	6

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
2SA1369	400	20 V	1500 mA	0.5 W	90 MHz
BCF39C	420	20 V	100 mA	0.25 W	75 MHz
BC252C	450	25 V	100 mA	0.3 W	80 MHz
BC253C	450	25 V	100 mA	0.3 W	80 MHz
2SA1944	400	50 V	1000 mA	0.5 W	90 MHz
BCV62C	420	30 V	100 mA	0.25 W	100 MHz
BC262C	450	25 V	100 mA	0.3 W	100 MHz
BC263C	450	25 V	100 mA	0.3 W	100 MHz

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
Xenotron Modulation Machine BC549C · BC559C · J113 · MN3102 Lovetone Flange With No Name · 1590XX	Lovetone Flange With No Name	Vibrato / Chorus	Aion FX	1590XX	4	$24.00	209
Colorsound Octivider Vero27×24 Unverified BC549C · BC559C Colorsound Octivider	Colorsound Octivider	Octave / Pitch	Dirtbox Layouts	—	2	—	38
Shin-ei OB-28 Octave Box Vero27×24 Verified BC549C · BC559C Shin-ei OB-28 Octave Box	Shin-ei OB-28 Octave Box	Octave / Pitch	Dirtbox Layouts	—	2	—	40