Parts · Transistors

NTE458

Si N-ch JFET.2 circuits use 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
NTE458		20 mA	50 V	0.25 W

Used on other boards here

Part	Vgs max	Id max	Vds	Pd	Boards
PF5102	1.6 V	20 mA	40 V	0.625 W	40
2SK117		14 mA	50 V	0.3 W	42
2SK184		14 mA	50 V	0.2 W	9
2SK170		20 mA	40 V	0.2 W	10
2SK246		14 mA	50 V	0.3 W	9
2N3956	4 V	50 mA	50 V	0.25 W	1
2N3954	4 V	50 mA	50 V	0.25 W	1
SST201		50 mA	40 V	0.36 W	1

Closest by the numbers

Part	Id max	Vds	Pd
2SK68A	20 mA	50 V	0.25 W
2SK1104	20 mA	65 V	0.3 W
2SJ163	20 mA	65 V	0.15 W
2SK1103	20 mA	65 V	0.15 W
2SK1069	20 mA	40 V	0.15 W
2SK771	20 mA	40 V	0.2 W
2SK772	20 mA	40 V	0.3 W
2SK389	20 mA	50 V	0.2 W

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	Dragonfly Sparkle Boost Vero9×9 Verified NTE458 Dragonfly Sparkle Boost	Dragonfly Sparkle Boost	Boost	Tagboard Effects	—	2	—	11
	Dragonfly Valentine Vero14×9 Unverified 2N3904 · NTE458 Dragonfly Valentine	Dragonfly Valentine	Overdrive	Tagboard Effects	—	2	—	15