Parts · Transistors
J112
4 circuits use this part. Listed as: JFET transistor, N-channel; JFET, N-channel; JFET, N-channel, TO-92.
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 |
|---|---|---|---|---|
| J112 | 50 mA | 35 V | 0.4 W |
Used on other boards here
| Part | Vgs max | Id max | Vds | Pd | Boards |
|---|---|---|---|---|---|
| J113 | 50 mA | 35 V | 0.4 W | 26 | |
| J111 | 50 mA | 35 V | 0.4 W | 1 | |
| BF244A | 30 V | 50 mA | 30 V | 0.35 W | 1 |
| MPF4393 | 30 mA | 30 V | 0.35 W | 13 | |
| PF5102 | 1.6 V | 20 mA | 40 V | 0.625 W | 14 |
| 2SK170 | 20 mA | 40 V | 0.2 W | 2 | |
| 2SK246 | 14 mA | 50 V | 0.3 W | 2 |
Closest by the numbers
| Part | Vgs max | Id max | Vds | Pd |
|---|---|---|---|---|
| PN4117 | 1.8 V | 50 mA | 40 V | 0.3 W |
| PN4118 | 3 V | 50 mA | 40 V | 0.3 W |
| PN4119 | 6 V | 50 mA | 40 V | 0.3 W |
| PN4391 | 50 mA | 40 V | 0.36 W | |
| 2N5638 | 50 mA | 30 V | 0.35 W | |
| 2N4856 | 10 V | 50 mA | 40 V | 0.36 W |
| 2SK162 | 50 mA | 40 V | 0.4 W | |
| BSR56 | 50 mA | 40 V | 0.25 W |
| Faceplate | Circuit | Based on | Category | Vendor | Box | Knobs | Price | BOM |
|---|---|---|---|---|---|---|---|---|
| L5 Preamp 2N3904 · 2N3906 · J112 · LF356N | Lab Series L5 | Preamp / Amp-in-a-box | Aion FX | 1590XX | 7 | $22.00 | 207 | |
| Stratus Deluxe Overdrive 2N5088 · J112 · JRC4558D | BOSS SD-1 Waza | Overdrive | Aion FX | 125B | 5 | $12.50 | 78 | |
| Tails/True Bypass - add-on for PT2399 delays J112 | — | Delay | Fuzz Dog | 1590B | — | £7.20 | 6 | |
| Nutty Fuzz 9203 · J112 · LM386-M1 · TLC555 | Acorn Amplifiers ADHD Synth Fuzz | Fuzz | PedalPCB | 125B | 6 | $12.00 | 29 |