Parts · Transistors
BF245A-III
Si N-ch JFET TO-92 TH.3 circuits use this part.
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 |
|---|---|---|---|---|
| BF245A | 6.5 mA | 30 V | 0.35 W |
Used on other boards here
| Part | Vgs max | Id max | Vds | Pd | Boards |
|---|---|---|---|---|---|
| 2N5246 | 4 V | 7 mA | 30 V | 0.35 W | 1 |
| 2N5952 | 3 V | 8 mA | 30 V | 0.36 W | 67 |
| PN4302 | 4 V | 5 mA | 30 V | 0.625 W | 1 |
| 2N5953 | 2.5 V | 5 mA | 30 V | 0.36 W | 1 |
| 2N5457 | 2.5 V | 5 mA | 25 V | 0.625 W | 563 |
| 2N5458 | 3.5 V | 9 mA | 25 V | 0.625 W | 88 |
| J202 | 4 V | 4.5 mA | 40 V | 0.625 W | 9 |
| 2N5245 | 1 V | 15 mA | 30 V | 0.35 W | 1 |
Closest by the numbers
| Part | Vgs max | Id max | Vds | Pd |
|---|---|---|---|---|
| 2N5196 | 4 V | 7 mA | 50 V | 0.5 W |
| 2N5197 | 4 V | 7 mA | 50 V | 0.5 W |
| 2N5198 | 4 V | 7 mA | 50 V | 0.5 W |
| 2N5199 | 4 V | 7 mA | 50 V | 0.5 W |
| J305 | 3 V | 8 mA | 30 V | 0.35 W |
| 2N4869 | 5 V | 7.5 mA | 40 V | 0.3 W |
| 2N5515 | 3.8 V | 7.5 mA | 40 V | 0.375 W |
| 2N5516 | 3.8 V | 7.5 mA | 40 V | 0.375 W |
| Faceplate | Circuit | Based on | Category | Vendor | Box | Knobs | Price | BOM |
|---|---|---|---|---|---|---|---|---|
| BJF BlueBerry Bass Overdrive BF245A-III · CA3130 | — | Overdrive | Moody Sounds | — | 3 | kr995.00 | 42 | |
| BJF Honey Bee Overdrive BF245A-III · CA3130 | — | Overdrive | Moody Sounds | — | 3 | kr995.00 | 44 | |
| BJF Vibravibe 2N1711 · 78L05 · BC550C · BF245A-III 1590BB | — | Vibrato / Chorus | Moody Sounds | 1590BB | 2 | kr1795.00 | 67 |