Parts · Diodes
1N4146
Si Rectifier DO-27 TH.1 circuit uses this part.
Datasheet · archived copy from Diode Semiconductor Korea; the part is discontinued and the maker no longer publishes it
Substitutes same kind
Diodes of the same kind; for clipping, the forward drop is what you hear. The figures are read off each part's datasheet (this one's from page 1), typical where the sheet gives a typical value, otherwise the maximum. Closest first; the last column says what differs. A different part can change the sound, and a circuit may lean on one particular figure, so read the build document's notes before you swap.
This part
| Part | Vf | If max | Vr | trr | Cj | Package | Boards |
|---|---|---|---|---|---|---|---|
| 1N4146 | 1 V @ 3000 mA | 3 A | 1200 V | 35 pF | DO-27 | 1 |
A 3 A, 1200 V rectifier in a large DO-27 body; on a signal path the board's 1N4146 is probably a misprint for 1N4148.
Alternatives
| Part | Vf | If max | Vr | trr | Cj | Package | Boards | Differs |
|---|---|---|---|---|---|---|---|---|
| 1N4007 | 1.1 V @ 1000 mA | 1 A | 1000 V | 15 pF | DO-41 | 181 | higher forward drop; 1 A forward; DO-41 | |
| 1N4006 | 1.1 V @ 1000 mA | 1 A | 800 V | 15 pF | DO-41 | 4 | higher forward drop; 800 V reverse; 1 A forward; DO-41 | |
| 1N4005 | 1.1 V @ 1000 mA | 1 A | 600 V | 15 pF | DO-41 | 13 | higher forward drop; 600 V reverse; 1 A forward; DO-41 | |
| 1N4004 | 1.1 V @ 1000 mA | 1 A | 400 V | 15 pF | DO-41 | 78 | higher forward drop; 400 V reverse; 1 A forward; DO-41 | |
| 10E-2 | 0.9 V @ 1000 mA | 1 A | 200 V | 2 | lower forward drop; 200 V reverse; 1 A forward | |||
| 1N346 | 0.6 A | 200 V | DO-4 | 1 | 200 V reverse; 0.6 A forward; DO-4. An old stud-mount rectifier rated 200 V and 0.6 A, Vf 2.0 V max at an unstated current. | |||
| 1N4003 | 1.1 V @ 1000 mA | 1 A | 200 V | 15 pF | DO-41 | 21 | higher forward drop; 200 V reverse; 1 A forward; DO-41 | |
| 1N4002 | 1.1 V @ 1000 mA | 1 A | 100 V | 15 pF | DO-41 | 110 | higher forward drop; 100 V reverse; 1 A forward; DO-41 | |
| 1N4001 | 1.1 V @ 1000 mA | 1 A | 50 V | 15 pF | DO-41 | 2096 | higher forward drop; 50 V reverse; 1 A forward; DO-41. Any 1N400x fits; the family differs only in reverse voltage. |