Parts · Transistors

2SK304

Si N-ch JFET.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
2SK304	4 V	20 mA	30 V	0.15 W

Used on other boards here

Part	Vgs max	Id max	Vds	Pd	Boards
NTE458		20 mA	50 V	0.25 W	2
2N5459	4.5 V	16 mA	25 V	0.625 W	5
J309	4 V	30 mA	25 V	0.625 W	8
2SK170		20 mA	40 V	0.2 W	10
2SK117		14 mA	50 V	0.3 W	42
2SK184		14 mA	50 V	0.2 W	9
2SK246		14 mA	50 V	0.3 W	9
MPF102	7.5 V	20 mA	25 V	0.35 W	18

Closest by the numbers

Part	Vgs max	Id max	Vds	Pd
2SK1332		20 mA	30 V	0.15 W
2SK662		20 mA	30 V	0.15 W
2SK1806		20 mA	30 V	0.25 W
2SK198		20 mA	30 V	0.15 W
2SK2170		20 mA	30 V	0.1 W
2SK303	4 V	20 mA	30 V	0.2 W
2SK606		20 mA	30 V	0.4 W
2SK514		20 mA	50 V	0.25 W

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	Arion SAD-1 2SC1815GR · 2SK304 · MN3102 · MN3205 Arion SAD-1	Arion SAD-1	Delay	Experimentalists Anonymous	—	3	—	47