Parts · Diodes

1N4148W

Si Signal Diode SOD-123 SMD.3 circuits use this part.

Datasheet · from diodes.com

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 2), 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
1N4148W	0.715 V @ 1 mA	0.3 A	100 V	4 ns	2 pF	SOD-123	5

Surface-mount 1N4148 in SOD-123.

Alternatives

Part	Vf	If max	Vr	trr	Cj	Package	Boards	Differs
1N916	1 V @ 10 mA	0.2 A	100 V	4 ns	2 pF	DO-35	17	DO-35. Lower capacitance (2 pF) version of the 1N914.
1N4149	1 V @ 10 mA	0.5 A	100 V	4 ns	2 pF	DO-35	1	DO-35. Low-capacitance (2 pF) 1N4148-class diode.
1N914	1 V @ 10 mA	0.2 A	100 V	4 ns	4 pF	DO-35	905	DO-35. Same die as the 1N4148; the B grade is specified at 0.62-0.72 V at 5 mA.
1N458A	1 V @ 100 mA	0.5 A	150 V			DO-35	2	DO-35. Low-leakage 150 V glass diode (25 nA at 125 V).
1N4148	1 V @ 10 mA	0.15 A	100 V	4 ns	4 pF	DO-35	2547	DO-35. Vf is a 1 V maximum at 10 mA; the sheet calls the 1N914 electrically equivalent.
1N4448	0.72 V @ 5 mA	0.15 A	100 V	4 ns	4 pF	DO-35	5	DO-35. A 1N4148 with a tighter forward voltage spec (0.62-0.72 V at 5 mA).
1N914BWS	0.72 V @ 5 mA	0.15 A	75 V	4 ns	4 pF	SOD-323	2	SOD-323. Surface-mount 1N914B in the small SOD-323 package.
1N456	1 V @ 100 mA	0.5 A	30 V			DO-35	8	DO-35. Low-leakage 30 V glass diode (25 nA at 25 V) that clips much like a 1N4148.
1N457A	1 V @ 20 mA	0.2 A	70 V		8 pF	DO-35	1	DO-35. Low-leakage 70 V glass diode (25 nA at 60 V).
MA856	1 V @ 100 mA	0.1 A	35 V		2 pF	DO-34	18	DO-34. A band-switching diode (MA2C856), discontinued; Vf is only a 1 V maximum at 100 mA.

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