Parts · Diodes

1N4740

Si Zener 10 V 1 W DO-41 TH.1 circuit uses this part.

Substitutes same voltage

Zeners of the same voltage. 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	Vz	Power	Package	Boards
1N4740	10 V	1.3 W	DO-41	1

1.3 W zener in DO-41, ±5 % tolerance.

Alternatives

Part	Vz	Power	Package	Boards	Differs
1N961B	10 V	0.5 W	DO-35	4	DO-35 body; 0.5 W. 500 mW glass zener, ±5 % in the B grade.
1N5240	10 V	0.5 W	DO-35	2	DO-35 body; 0.5 W. 500 mW zener in DO-35; B suffix is ±5 %, C is ±2 %.

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