Parts · Transistors

J113 / PF5102

1 circuit uses this part.

Substitutes N-channel JFET

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	Vgs max	Id max	Vds	Pd
J113		50 mA	35 V	0.4 W

Used on other boards here

Part	Vgs max	Id max	Vds	Pd	Boards
J112		50 mA	35 V	0.4 W	4
J111		50 mA	35 V	0.4 W	1
BF244A	30 V	50 mA	30 V	0.35 W	1
MPF4393		30 mA	30 V	0.35 W	13
PF5102	1.6 V	20 mA	40 V	0.625 W	14
2SK170		20 mA	40 V	0.2 W	2
2SK246		14 mA	50 V	0.3 W	2

Closest by the numbers

Part	Vgs max	Id max	Vds	Pd
PN4117	1.8 V	50 mA	40 V	0.3 W
PN4118	3 V	50 mA	40 V	0.3 W
PN4119	6 V	50 mA	40 V	0.3 W
PN4391		50 mA	40 V	0.36 W
2N5638		50 mA	30 V	0.35 W
2N4856	10 V	50 mA	40 V	0.36 W
2SK162		50 mA	40 V	0.4 W
BSR56		50 mA	40 V	0.25 W

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	Polar White Face BC550C · J113 / PF5102	Arctic White Fuzz	Fuzz	Fuzz Dog	1590B	4	£30.00	27