Parts · Transistors
2SK170GR
Si N-ch JFET TO-92 TH.3 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 |
|---|---|---|---|---|
| 2SK170 | 20 mA | 40 V | 0.2 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 |
| 2N4860 | 6 V | 20 mA | 30 V | 0.36 W | 1 |
| 2N5245 | 1 V | 15 mA | 30 V | 0.35 W | 1 |
| NTE458 | 20 mA | 50 V | 0.25 W | 2 | |
| BF256C | 30 V | 18 mA | 30 V | 0.35 W | 2 |
| 2SK304 | 4 V | 20 mA | 30 V | 0.15 W | 1 |
| 2N4416 | 30 V | 30 mA | 30 V | 0.3 W | 1 |
| 2SK117 | 14 mA | 50 V | 0.3 W | 42 |
Closest by the numbers
| Part | Vgs max | Id max | Vds | Pd |
|---|---|---|---|---|
| 2SK364 | 20 mA | 40 V | 0.4 W | |
| 2SK366 | 20 mA | 40 V | 0.2 W | |
| 2SK240 | 20 mA | 40 V | 0.4 W | |
| 2N4223 | 7 V | 20 mA | 30 V | 0.3 W |
| 2N4224 | 7.5 V | 20 mA | 30 V | 0.3 W |
| 2SK662 | 20 mA | 30 V | 0.15 W | |
| 2N4857 | 6 V | 20 mA | 40 V | 0.36 W |
| 2SK369 | 20 mA | 40 V | 0.4 W |
| Faceplate | Circuit | Based on | Category | Vendor | Box | Knobs | Price | BOM |
|---|---|---|---|---|---|---|---|---|
| Himmelstrutz Fetto Perfboard Verified 2SK170GR Himmelstrutz Fetto | Himmelstrutz Fetto | Distortion | Effects Layouts (blog) | — | 3 | — | 27 | |
| Himmelstrutz Fetto Vero18×17 Verified 2SK170GR Himmelstrutz Fetto · 1590B | Himmelstrutz Fetto | Distortion | Tagboard Effects | 1590B | 3 | — | 38 | |
| Himmelstrutz Gramps Vero18×11 Verified 2SK170GR Himmelstrutz Gramps | Himmelstrutz Gramps | Distortion | Tagboard Effects | — | 4 | — | 27 |