Parts · Transistors
MMBF5484
Si N-ch JFET SOT-23 SMD.1 circuit uses this part. Listed as: JFET, N-channel, SOT-23.
Datasheet · from onsemi.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 |
|---|---|---|---|---|
| MMBF5484 | 3 V | 5 mA | 25 V | 0.225 W |
Used on other boards here
| Part | Vgs max | Id max | Vds | Pd | Boards |
|---|---|---|---|---|---|
| PN4393 | 5 mA | 40 V | 0.36 W | 2 | |
| 2N5457 | 2.5 V | 5 mA | 25 V | 0.625 W | 563 |
| 2N5953 | 2.5 V | 5 mA | 30 V | 0.36 W | 1 |
| PN4302 | 4 V | 5 mA | 30 V | 0.625 W | 1 |
| 2SK118 | 6.5 mA | 50 V | 0.1 W | 19 | |
| 2SK208 | 6.5 mA | 50 V | 0.1 W | 1 | |
| J202 | 4 V | 4.5 mA | 40 V | 0.625 W | 9 |
| 2N5952 | 3 V | 8 mA | 30 V | 0.36 W | 67 |
Closest by the numbers
| Part | Vgs max | Id max | Vds | Pd |
|---|---|---|---|---|
| BFR31 | 5 mA | 25 V | 0.225 W | |
| 2SK2091 | 5 mA | 30 V | 0.15 W | |
| BF861A | 6.5 mA | 25 V | 0.25 W | |
| 2SK30ATM | 6.5 mA | 50 V | 0.1 W | |
| 2SK879 | 6.5 mA | 50 V | 0.1 W | |
| 2SK880GR | 6.5 mA | 50 V | 0.1 W | |
| 2N5670 | 8 mA | 25 V | 0.31 W | |
| J305 | 3 V | 8 mA | 30 V | 0.35 W |
| Faceplate | Circuit | Based on | Category | Vendor | Box | Knobs | Price | BOM |
|---|---|---|---|---|---|---|---|---|
| Muramasa JFET Boost LT1054 · LT1054CP · MMBF5484 Keeley Katana · 125B | Keeley Katana | Boost | Aion FX | 125B | 2 | $12.50 | 38 |