Parts · Transistors

BF248A

Si NPN BJT.1 circuit uses this part.

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
BF248	30	25 V	600 mA	0.4 W	180 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
PN100	40	35 V	500 mA	0.625 W	200 MHz	5
2N5845	25	40 V	1000 mA	0.625 W	300 MHz	1
MPSA12	20	20 V	300 mA	0.33 W	125 MHz	13
2N1613	40	50 V	600 mA	0.8 W	80 MHz	3
2N697	40	40 V	500 mA	0.6 W	50 MHz	1
2N2396	40	40 V	300 mA	0.45 W	40 MHz	1
MPSA05	50	60 V	500 mA	0.33 W	100 MHz	6
2N3053	50	40 V	700 mA	1 W	100 MHz	4

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
BSW41A	30	25 V	500 mA	0.35 W	150 MHz
BFV88	30	30 V	800 mA	0.36 W	200 MHz
2SC1274	30	20 V	300 mA	0.3 W	175 MHz
MPS6532	30	30 V	600 mA	0.31 W	200 MHz
MPS8000	30	30 V	500 mA	0.625 W
2N2845	30	30 V	500 mA	0.36 W	250 MHz
BFV88D	30	30 V	800 mA	0.36 W	250 MHz
BFV88E	30	30 V	800 mA	0.36 W	250 MHz

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	May I? Vox in a Box Vero20×15 Verified 2N3904 · BF248A · NPN GE May I? Vox in a Box	May I? Vox in a Box	Preamp / Amp-in-a-box	Tagboard Effects	—	5	—	35