Parts · Transistors
MMBF5457
Si N-ch JFET SOT-23 SMD.17 circuits use this part. Listed as: JFET, N-channel, SOT-23; JFET, N-channel, TO-92; Transistor, N Channel JFET; Transistor MMBF5457.
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 |
|---|---|---|---|---|
| MMBF5457 | 6 V | 5 mA | 25 V | 0.35 W |
Used on other boards here
| Part | Vgs max | Id max | Vds | Pd | Boards |
|---|---|---|---|---|---|
| PN4393 | 5 mA | 40 V | 0.36 W | 2 | |
| PN4302 | 4 V | 5 mA | 30 V | 0.625 W | 1 |
| J202 | 4 V | 4.5 mA | 40 V | 0.625 W | 9 |
| J110 | 10 mA | 25 V | 0.4 W | 1 | |
| 2N5246 | 4 V | 7 mA | 30 V | 0.35 W | 1 |
| 2N5953 | 2.5 V | 5 mA | 30 V | 0.36 W | 1 |
| 2N5458 | 3.5 V | 9 mA | 25 V | 0.625 W | 88 |
| 2SK117 | 14 mA | 50 V | 0.3 W | 42 |
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 | |
| 2N5452 | 4.5 V | 5 mA | 50 V | 0.5 W |
| 2N5453 | 4.5 V | 5 mA | 50 V | 0.5 W |
| 2N5454 | 4.5 V | 5 mA | 50 V | 0.5 W |
| 2N5670 | 8 mA | 25 V | 0.31 W | |
| 2N5045 | 8 mA | 50 V | 0.25 W |
| Faceplate | Circuit | Based on | Category | Vendor | Box | Knobs | Price | BOM |
|---|---|---|---|---|---|---|---|---|
| Artemis Mk. I Preamp Drive MMBF5457 Catalinbread SFT V1 · 125B | Catalinbread SFT V1 | Overdrive | Aion FX | 125B | 3 | $12.50 | 64 | |
| Asteria Mk. I Preamp Drive MMBF5457 Catalinbread Formula No. 5 (V1) · 125B | Catalinbread Formula No. 5 (V1) | Overdrive | Aion FX | 125B | 4 | $12.50 | 49 | |
| Asteria Mk. II Preamp Drive MMBF5457 Catalinbread Formula No. 5 (V2) · 125B | Catalinbread Formula No. 5 (V2) | Overdrive | Aion FX | 125B | 3 | $12.50 | 52 | |
| Gaia Mk. I Preamp Drive MMBF5457 Catalinbread CB30 · 125B | Catalinbread CB30 | Overdrive | Aion FX | 125B | 3 | $12.50 | 81 | |
| Triton Mk. II Preamp Drive MMBF5457 Catalinbread Dirty Little Secret Mk. II · 125B | Catalinbread Dirty Little Secret Mk. II | Overdrive | Aion FX | 125B | 4 | $12.50 | 62 | |
| Mu Blaster LT1054 · MMBF5457 · MMBT5088 Electronic Audio Experiments Mu Blaster · 125B | Electronic Audio Experiments Mu Blaster | Boost | Electronic Audio Experiments | 125B | 4 | $10.00 | 44 | |
| Bearhug Compressor 2N5457/MMBF5457 · BS170 · MPSA18 Jon Patton Bearhug Compressor · 1590B | Jon Patton Bearhug Compressor | Compressor | Fuzz Dog | 1590B | 2 | £31.20 | 31 | |
| Doc Bob 2N2222A · 2N5457/MMBF5457 · 7660SEPA/LT1054 Aclam Dr. Robert · 1590B | Aclam Dr. Robert | Boost | Fuzz Dog | 1590B | 1 | £40.80 | 58 | |
| EPically Modded Boost 2N5457/MMBF5457 · 7660S · TL7660SEPA Xotic EP Booster · 1590B | Xotic EP Booster | Boost | Fuzz Dog | 1590B | 3 | £36.00 | 32 | |
| FuzzPup EPic Booster 2N5088 · 2N5457/MMBF5457 Xotic EP Booster · 1590A | Xotic EP Booster | Boost | Fuzz Dog | 1590A | 1 | £27.60 | 26 | |
| Lovely Squeezer Compressor 2N5457/MMBF5457 · TL072 Rothwell Love Squeeze · 1590B | Rothwell Love Squeeze | Compressor | Fuzz Dog | 1590B | 1 | £28.80 | 35 | |
| Dopamine Preamp BC547C · BC557C · IRF740 · J177 1590BB2 | — | Preamp / Amp-in-a-box | HotKits | 1590BB2 | 7 | $14.00 | 52 | |
| Mesmerizer 2N5457 · 2N5485 · MMBF5457 · MMBF5485 Catalinbread Pareidolia · 125B | Catalinbread Pareidolia | Vibrato / Chorus | PedalPCB | 125B | 3 | $12.00 | 67 | |
| Kasza 78L05 · BC547B · MMBF5457 125B | — | Boost | Schalltechnik_04 | 125B | 3 | — out | 29 | |
| Echoplexus Tape Delay A PT2399-Based Workalike of the Classic Tape Echo DIP16 · LM78L · MMBF5457 · MMBT5088LT1G | — | Delay | Scientific Guitarist | — | 4 | — | 104 | |
| CVE Drive 4558 · L78L06 · MMBF5457 · RC4558 Dirty | Dirty | Overdrive | Sheepylove | — | 6 | €10.00 | 55 | |
| Epic Boost 2SC1815 · MMBF5457 EP Boost | EP Boost | Boost | Sheepylove | — | 2 | €5.00 | 26 |