Parts · Transistors
MMBF5485
Si N-ch JFET SOT-23 SMD.1 circuit uses this part.
Datasheet · from my.centralsemi.com
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 |
|---|---|---|---|---|
| MMBF5485 | 4 V | 10 mA | 25 V | 0.225 W |
Used on other boards here
| Part | Vgs max | Id max | Vds | Pd | Boards |
|---|---|---|---|---|---|
| J110 | 10 mA | 25 V | 0.4 W | 1 | |
| 2N5458 | 3.5 V | 9 mA | 25 V | 0.625 W | 88 |
| 2N5246 | 4 V | 7 mA | 30 V | 0.35 W | 1 |
| 2SK117 | 14 mA | 50 V | 0.3 W | 42 | |
| 2SK246 | 14 mA | 50 V | 0.3 W | 9 | |
| 2SK184 | 14 mA | 50 V | 0.2 W | 9 | |
| 2N5952 | 3 V | 8 mA | 30 V | 0.36 W | 67 |
| 2N5459 | 4.5 V | 16 mA | 25 V | 0.625 W | 5 |
Closest by the numbers
| Part | Vgs max | Id max | Vds | Pd |
|---|---|---|---|---|
| BFR30 | 10 mA | 25 V | 0.225 W | |
| BFT46 | 10 mA | 25 V | 0.25 W | |
| 2SK3666 | 10 mA | 30 V | 0.2 W | |
| 2SK3796 | 10 mA | 30 V | 0.1 W | |
| 2SK193 | 10 mA | 20 V | 0.25 W | |
| 2SK195 | 10 mA | 20 V | 0.25 W | |
| 2SK3230 | 10 mA | 20 V | 0.2 W | |
| 2SK3782 | 10 mA | 20 V | 0.1 W |
| Faceplate | Circuit | Based on | Category | Vendor | Box | Knobs | Price | BOM |
|---|---|---|---|---|---|---|---|---|
| Mesmerizer 2N5457 · 2N5485 · MMBF5457 · MMBF5485 Catalinbread Pareidolia · 125B | Catalinbread Pareidolia | Vibrato / Chorus | PedalPCB | 125B | 3 | $12.00 | 67 |